Page 1 of 4 1234 LastLast
Results 1 to 20 of 71

Thread: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

Discussions of Triumph motor cars

  1. #1
    Senior Member
    Join Date
    Oct 2013
    Location
    Ohio
    Posts
    68
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    My father and I pulled this 1965 TR4 out of a car port. It was in solid shape but after getting it home I noticed it had been hacked by the previous owners over the years. My goal with this car is to turn it into a nice driver. After fixing a hole in the steel dash and going through all the wiring and getting everything working it seemed to run pretty good with zero attention to the engine systems. I drove it around for 2 months like this. It did have an occasional miss under load and high rpms but when I got off the gas it stopped. I guessed it might be the debris in the glass filter running the bowls out of fuel or the points. Then one hot day it went to crap quick. Misfire, no fire then dead. Before this I had sanded and adjusted the points with no change, still occasional miss under load and high rpms.

    So now I'm going to go through each system one thing at a time. Carbs, lines, pump, filter, tank. Then ignition system replacing the points, condenser, coil and setting timing. I'm guessing all of this needed to be done since I have no idea how long this car sat before the two or three years it sat my shop. Hopefully I will have eliminated the problem. The car runs amazing other than this miss.

    The car
    10291311_10203753001128483_7826333305489525065_n.jpg

    I've been doing a ton of research on rebuilding the carbs. The 175CD Strombergs are pretty simple. I just need to know the super secret pitfalls and things beyond the basic gasket rebuild that could give me tuning problems down the road. I've already disassembled one and was surprised how tight, clean and simple it is. I'll be getting rebuilds from Joe Curto or the like. Any suggestions of where to get the carb kits, points, condenser, coil and fuel pump or fuel pump rebuilds and fuel filter rebuilds. I'll be posting my progress and questions here as I progress through each task. Subscribe and participate! Thanks guys!
    10462752_10204072264869877_2131547722604445546_n.jpg

  2. #2
    Yoda poolboy's Avatar
    Join Date
    Oct 2007
    Location
    S.W. Mississippi
    Posts
    3,779
    Thanks Thanks Given 
    23
    Thanks Thanks Received 
    17
    Thanked in
    17 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    Call Joe and offer to send him a picture because there are different versions of the 175 CD carbs.
    Tell him you want EVERYTNING needed to rebuild those particular carbs.. Then just do a good job putting the carbs, cleaned and polished, back together; then set the adjustments as best you can.
    Set the timing with the new components and then go try it out.
    DRIVE 'EM IF YOU GOT 'EM

  3. #3
    Luke Skywalker trrdster2000's Avatar
    Join Date
    Sep 2004
    Location
    Salisbury NC
    Posts
    1,820
    Thanks Thanks Given 
    12
    Thanks Thanks Received 
    9
    Thanked in
    9 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    Jeep, on the CD175 you have it is really a good one. Your biggest problem will be the centering of the jets, so the needle does not touch on any side. You will have to loosen and tighten the jet adjustment a bunch. The first setting for both should be even with the venture bushing, then screwed down 1 and one half turns. That should be in the neighborhood, then you can start lifting the piston a 1/8 inch or so. If reeves up, go up a quarter turn and try again. If nothing happens you are real close and only driving and checking the plugs will you know if it's a little lean or rich.

    Wayne
    '37 MG TA, '49 Triumph Roadster, '70 TR6, 2000 Jaguar XK8, '78 Spit6

  4. #4
    Great Pumpkin TR3driver's Avatar
    Join Date
    Aug 2003
    Location
    Sunny So California
    Posts
    19,552
    Thanks Thanks Given 
    8
    Thanks Thanks Received 
    138
    Thanked in
    129 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    Quote Originally Posted by jeep937 View Post
    Any suggestions of where to get the carb kits, points, condenser, coil and fuel pump or fuel pump rebuilds and fuel filter rebuilds.
    There are lots of sources, the "Big Three" are Moss, TRF and VB.
    https://www.mossmotors.com/
    https://www.the-roadster-factory.com/indexmain.php
    https://www.victoriabritish.com/

    My personal preference is TRF; but they are a little strange to deal with. They don't publish a full catalog of their own (for the TR4). Instead, you look up the original factory part number and then order that. They'll sell you a paper reprint, or you can download a PDF file here https://drive.google.com/file/d/0B2H...it?usp=sharing

    Their fuel pump rebuild kit is quite a bit more expensive than the others (like double), but is also substantially higher quality IMO with a brass (not plastic) screen, nitrile bowl seal and the elusive oil seal that others leave out.


    You might find this helpful, too.
    https://drive.google.com/file/d/0B2H...it?usp=sharing
    Randall
    56 TR3 TS13571L once and future daily driver
    71 Stag LE1473L waiting engine rebuild
    71-72-73 Stag LE2013LBW waiting OD gearbox rebuild

  5. #5
    Yoda glemon's Avatar
    Join Date
    Jun 2007
    Location
    Nebraska, USA
    Posts
    3,554
    Thanks Thanks Given 
    15
    Thanks Thanks Received 
    21
    Thanked in
    21 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    The carb rebuild is pretty easy, everything should just go back together the same way it came apart, make sure you get the throttle plates properly centered so that they can be closed all the way without sticking, otherwise it will be hard to adjust your idle, make sure you don't tear the diaphragm, the big rubber bit, when you put the tips back on the carb. Check to make sure the throttle shafts aren't worn with excessive play. Google these: Full line parts suppliers are The Roadster Factory, Moss, and Victoria British, Roadster factory often gives you more description of whether the part is the OEM spec or just fits and works. British Parts Northwest has mechanical bits at good prices, Burlen Fuel Systems has carb bits from England, but you can get most of what you need here.

    Edit: Randall, you beat me to it!

  6. #6
    Jedi Knight
    Join Date
    Apr 2013
    Location
    redding,ca
    Posts
    1,067
    Thanks Thanks Given 
    1
    Thanks Thanks Received 
    11
    Thanked in
    11 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    You referred to the miss you had, I had a similar problem that turned out to be a bad coil. But that is just one more potential reason.
    Charley

  7. #7
    Yoda TR4nut's Avatar
    Join Date
    Jan 2006
    Location
    Nacogdoches Texas
    Posts
    3,876
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    3
    Thanked in
    3 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    I recommend Joe Curto too - especially on calling him. I rebuilt the same set of carbs you have for my TR4 using Joe's rebuild kits and they've been running great for 2 years now.

    Joe can rebush the carb bodies and install the butterfly valves - best thing I did as this is the wear point on the carbs and you won't get a good idle otherwise. TR4s have very simple carbs you'll have no trouble rebuilding them.

    Edit: forgot to add you don't need to rebush unless you see some play in the throttle shafts - Joe's rebush service doesn't cost near as much as having him do a full rebuild and he can turn around the work quickly - worked that way for me anyway.
    Last edited by TR4nut; 07-24-2014 at 09:28 PM.
    Randy
    70 TR6 - running
    59 TR3A - slumbering
    64 TR4 - got another one!

  8. #8
    Jedi Trainee MarshgrassA's Avatar
    Join Date
    Jun 2010
    Location
    Charleston SC
    Posts
    243
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    Several months back I had what sounds like a similar issue with a misfire on my TR4A. Car had been running great till one morning when cranked up seemed to have what you described as a misfire. I wiggled all the wires and on one wiggle it cleared (please forgive my "girl" description). Turns out I had a bad wire connection on that plug. Had it fixed and no more misfire.

    Cheers,
    Irene

  9. #9
    Luke Skywalker 3798j's Avatar
    Join Date
    Apr 2005
    Location
    Susquehanna Valley
    Posts
    1,809
    Thanks Thanks Given 
    12
    Thanks Thanks Received 
    5
    Thanked in
    5 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    And as Irene commented about her loose wire being the culprit for a miss, long ago I also had a miss that would make itself known under load and was worse in hot (read humid) weather. A very small crack in the distributor cap was cause.

    '66 TR4A '68 GT6

  10. #10
    Senior Member
    Join Date
    Oct 2013
    Location
    Ohio
    Posts
    68
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    Thanks for the awesome posts everyone. So I have been busy the past few days pulling this out of a barn. When I order my carb stuff I guess I'm gonna try to get the stuff for this also..


  11. #11
    Yoda Geo Hahn's Avatar
    Join Date
    Sep 2001
    Location
    Mt Lemmon, Arizona
    Posts
    9,400
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    17
    Thanked in
    16 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    A Series 2 2+2 (possibly a 1970?) that has been converted to triple SUs (would have had dual Strombergs originally). That should keep you busy for awhile.

    Quote Originally Posted by jeep937 View Post
    ...When I order my carb stuff I guess I'm gonna try to get the stuff for this also...
    I expect you'll find there isn't much overlap in parts suppliers for TR4s and E-Types.

  12. #12
    Obi Wan HerronScott's Avatar
    Join Date
    Apr 2009
    Location
    Staunton, VA
    Posts
    2,039
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    Why can't I find a barn like that?

    All the ones around here are filled with hay and not British cars.

    Scott
    1966 TR4A IRS CTC69123L (first car and first love!)
    1966 TR4A IRS CTC72159LO
    1959 TR3A TS51339L

  13. #13
    Senior Member
    Join Date
    Oct 2013
    Location
    Ohio
    Posts
    68
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    Alright, I ordered carb kits for the TR4 and E Type from Joe Curto. Good stuff. I called The Roadster Factory and ordered a cap, rotor, points, condenser and coil. I wanted the fuel pump kit but my pump says "Made in Canada" on it and he said he wasn't sure the kit would work. What do we know about this made in canada pump? I asked for an original but it was like 200 bucks. Where can I get a kit for this or just get another one?

  14. #14
    Yoda Geo Hahn's Avatar
    Join Date
    Sep 2001
    Location
    Mt Lemmon, Arizona
    Posts
    9,400
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    17
    Thanked in
    16 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    I used one of those Canadian pumps for many years -- as I recall the innards are identical, i.e. a standard rebuild kit should work.

    Quote Originally Posted by jeep937 View Post
    ...I asked for an original but it was like 200 bucks.
    Moss sells a nice repro that has the correct priming lever for $42.95:

    Moss p/n 377-000

  15. #15
    Yoda TOC's Avatar
    Join Date
    Jun 2008
    Location
    Floe Ice, Antarctica
    Posts
    6,418
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    28
    Thanked in
    28 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    If you "sanded" the points....replace them. Unless you used 1000 grit of finer and sprayed them out with Brakleen afterwards.
    I have an old, very thing, very flexible point file...all I use. If they are pitted bad enough for anything more, replace them, and the condensor that causes pitting on one side.
    Springs get weak...especially if you forgot to turn off the ignition while working on it. Heats up the spring badly (caries all the primary power) and the spring tension is gone.
    On power to the coil.....use a voltmeter. Determine if your car uses a ballast ignition dropping resistor. If not, while running, power to the coil should be exactly the same as battery voltage.
    Easy test is to measure hot side of coil primary and battery hot post. Look for voltage differences there.
    Coil wire pulled from cap, held 1/2" from head, have someone crank it, moving the wire closer until you can see how much spark there is.
    Pull the plugs.
    Are they wet or dry?
    What colour?
    90% of carb problems are ignition, 90% of ignition problems are carbs...or some such.
    Plugs will tell you.
    Wet, either flooding, and you should have some external indication, like overflow, leaks, or smell.
    Hold a removed plug AWAY from the car and hold your operating Zippo under the wet end. See if it burns. Gas.
    Me?
    Points, condensor, rotor, plugs, fuel filter, inspect cap, ohm all plug wires, see if it goes and check power to coil, then spark at head. You're gonna need all those bits anyway with garbage in the filter bowl (I have a filter bowl on all three old cars I drive, and a filter that fits inside).
    Look closely along the fuel line to see if there is another filter in line somewhere.
    Hackers do all sorts of stuff. Had one years ago with TWO additional (plugged) filters cut into the lines. Rear one covered in so much carp almost couldn't find it.
    Rotted rubber hoses in fuel line. Replace them just because.
    Last edited by TOC; 07-28-2014 at 08:00 PM.

  16. #16
    Senior Member
    Join Date
    Oct 2013
    Location
    Ohio
    Posts
    68
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    Awesome post man. Thank you so much for all that info. Can't wait to hammer this all out.

  17. #17
    Great Pumpkin TR3driver's Avatar
    Join Date
    Aug 2003
    Location
    Sunny So California
    Posts
    19,552
    Thanks Thanks Given 
    8
    Thanks Thanks Received 
    138
    Thanked in
    129 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    Quote Originally Posted by Geo Hahn View Post
    I used one of those Canadian pumps for many years -- as I recall the innards are identical, i.e. a standard rebuild kit should work.
    I agree. I'd probably buy the kit and then, if it doesn't fit, look for an original pump to rebuild with the kit. Or just pick up that repro from Moss and be done with it.

    If you do rebuild the Canadian pump, pay attention to how the pivot pin is retained in the body. There were some reproduction pumps that just had the body staked to hold the pin in place, and they have been known to have the pin work loose with disastrous results.
    Randall
    56 TR3 TS13571L once and future daily driver
    71 Stag LE1473L waiting engine rebuild
    71-72-73 Stag LE2013LBW waiting OD gearbox rebuild

  18. #18
    Yoda Geo Hahn's Avatar
    Join Date
    Sep 2001
    Location
    Mt Lemmon, Arizona
    Posts
    9,400
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    17
    Thanked in
    16 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    I just looked at my Canadian pump (still saving it on the parts shelf, no idea why) and it has the pressed in pin.

    I cannot recall if this was the pump where the pin fell out or the one where a check valve fell out -- anyway, I replaced it with an AC priming lever pump.

  19. #19
    Senior Member
    Join Date
    Oct 2013
    Location
    Ohio
    Posts
    68
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    I ordered the Canadian pump but man I really want that AC pump now..

  20. #20
    Senior Member
    Join Date
    Oct 2013
    Location
    Ohio
    Posts
    68
    Thanks Thanks Given 
    0
    Thanks Thanks Received 
    0
    Thanked in
    0 Posts

    Re: Making a '65 TR4 Run Awesome. Misfire, Ignition Tune Up, Carb Rebuilds. Help?

    I got my carb kits from Joe Curto. He also had the Jag E Type kits. I picked up a ultrasonic cleaner from HF with the 25% off and it worked great. I am super impressed with the kits. I knocked one down. It appeares to have cracked floats so I'm not going to button it up 'til I get some new ones. Also I could not find a place for the two pieces on the yellow diagram paper. One is a copper washer/spacer which appears to be the same size at the aluminum piece that goes on top of the jet assembly. The other is a larger "paper" gasket which didn't seem to fit anywhere. Any ideas fellas. I also haven't assemble the needle and seat yet and it seems to have 3 round gasket/pieces in the bag and I can only think of one place for one of them, under the face when screwing it in the carb body..

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •