• Hi Guest! Being a Paying Supporter is NOT a requirement to participate at BCF. However, subscribing will help ensure we can continue to serve the LBC community for years to come. If you enjoy BCF and find our forum a useful resource...Please consider supporting us by **Upgrading**
    (PS: Subscribers don't see this banner)
Tips
Tips

SANITY CHECK PLEASE - 1-3-4-2 ???

RickB

Yoda
Offline
I have three or four MGB books here, they all say the firing order is 1-3-4-2 right?

Ok - first off I don't believe that's how I had mine. I don't know when I messed it up but apparently I got a couple wires crossed and I think it was 1-3-2-4. Strangely it ran ok like this sometimes. Mostly it was awful.

I removed the cap from the wires and cleaned it up and put it back on with the order 1-3-4-2 and got no fire.

I am assuming this is clockwise and number 1 is just "up" from the external wire connector?

None of my books have a diagram of this!!!

I also found my points were set at less than .010 so I adjusted them to .014 - this might also make a difference (if I ever get it to run again).
 
OP
RickB

RickB

Yoda
Offline
<sheepish grin mode on>
That's supposed to be counter-clockwise isn't it?
</sheepish grin mode off>
 

bob67bgt

Jedi Knight
Offline
Yes, counter clockwise. If the distributor drive was installed properly then #1 is just above where the wire goes in the side. If you have no idea if the gear is in correct then bring the engine to top dead center and see where the rotor is pointing. No. 1 is there or 180 degrees from there. If you turn the engine over 1 complete revolution and bring it to TDC you will see the rotor is pointing 180 from the first go round. I hope this is clear enough and helps. bob
 
OP
RickB

RickB

Yoda
Offline
Thanks Bob,

You know how sometimes you just look at something and well you just don't quite 'get it' - that's what happened.

What's nice is that I had pictures of that side of the motor so I could see what it looked like when it was running good. :laugh:

So - on with the story now, guess I'll continue in the other thread...
 
Offline
RickB said:
<snip> None of my books have a diagram of this!!! <snip>

Here ya go....
 

Attachments

  • 13823.jpg
    13823.jpg
    53.2 KB · Views: 340

jlaird

Great Pumpkin
Country flag
Offline
Nicely done Rick. That should be in the wiki or at least shared on the spridget list.
 

tony barnhill

Great Pumpkin - R.I.P
Offline
Rick - Nice....only thing missing is explaining what the arrow points to...it points to the position of the #1 wire.
 

jlaird

Great Pumpkin
Country flag
Offline
And the number 1 plug in fact if the timeing is closeish.
 
Offline
jlaird said:
Nicely done Rick. That should be in the wiki or at least shared on the spridget list.

I cannot take credit for the original jpg...I found it a couple of years ago and realized its value...and share it whenever a question of this comes up in discussion.
 
OP
RickB

RickB

Yoda
Offline
Thanks guys - you know how it is when you start pulling what's left of your hair out right? :wink:
 

Jagboy69

Senior Member
Offline
I've been right there before with ya Rick. Was this the root of your problem???
I said in the other thread, that it IS possible for these cars to run with the wires goofed up. It'll run, just not well. ;-)

You should try it on a Jag. No1 (firing order) is at the windshield and things can get really screwed up if you're not careful. Sometimes No1 is at the radiator. It all depends on what your working on.

BTW, When you gonna chuck that dizzy setup and switch to pertronix? You know you want it!
This cures all troubles and world hunger too!
41427P_m.jpg
 
OP
RickB

RickB

Yoda
Offline
Nah - this is a Jeff Schlemmer Dizzy - a work of art.
Seriously this thing was running fantastic until it went to heck recently.

No, the firing order wasn't the issue - just something I messed up while trying to fix stuff.
 
OP
RickB

RickB

Yoda
Offline
Hi Jeff, thanks but I didn't want to bug you as I really didn't think it was a problem with the unit you supplied.
Thanks anyway!
 

dklawson

Yoda
Offline
I was hoping this would turn out to be the source of the problem. Sorry Rick. Keep us posted.
 

vping

Yoda
Country flag
Offline
Just ask Jeff super helpfull he is I'll tell ya!! One for the 67BGT, one for the 74B and one for the 52TD.

IMG_6315.jpg
 
OP
RickB

RickB

Yoda
Offline
Here's the 'end of the story':

<div class="ubbcode-block"><div class="ubbcode-header">Quote:]
It Lives!!!

New cap = no difference
New rotor = no difference
New condenser = no difference
Jumpering tach out = no difference
Jumpering ign switch out = no difference

After all that I was beginning to see the end of the rope so I metered things that really "looked" like they were right to see if the meter agreed.

With the points closed I was getting odd readings, like they really were not closed.

I opened and closed them several times and got differing readings.

Next I pulled the points out and hit the contacts with a file, the meter then showed closed when they touched and open when not.

After reinstalling the points and making sure everything else was right I tried it and - IT RAN!!!

I guess sometimes it's just that one "obvious" thing that puts you over a barrel.

Thanks again for all the help here.
[/QUOTE]

Now I need to do something about that big hole in the back muffler. :yesnod:
 
Similar threads
Thread starter Title Forum Replies Date
NutmegCT Sanity check please! Other Cars 90
V Sanity check please. Austin Healey 3
Rut Sanity check! Spridgets 2
M Sanity check - starting project on MGA Restoration & Tools 6
sparkydave Sanity check Spridgets 3
RAC68 Corona Virus Sanity Austin Healey 25
regularman A plan to keep my sanity Spridgets 6
mjobrien Start up Sanity check….. Austin Healey 5
T General Tech Once again, check the easy stuff Triumph 2
AngliaGT Got Lucky Today - CHECK THOSE BOLTS! Spridgets 6
S Price check on TR3A valve cover Triumph Classifieds 0
Twit TR4/4A early tr4 check straps Triumph 4
F Check for matching nrs Austin Healey MK2 Austin Healey 3
Lukens For Sale Check out this tr3 project for sale... A real treasure trove Triumph Classifieds 0
V TR2/3/3A Vertical link check Triumph 2
R TR4/4A Door check straps Triumph 7
68_sprite Check the August Oprah Magazine Austin Healey 5
M TR2/3/3A TR-3A Compresson check hot vs cold Triumph 5
HighAltitudeTR3 TR2/3/3A Door Check Assembly Triumph 19
S Door Check Strap Austin Healey 5
AngliaGT Why You Should Double - Check Your Parts When You Receive them. Spridgets 2
T TR2/3/3A Where is best spot to check temp with infrared thermometer? Triumph 17
AngliaGT Anyone in Charlotte,NC That Could Check Out a Truck for Me? Other Cars 0
C Rough Idle - What to check? Austin Healey 12
KVH TR4/4A Door Check Straps Triumph 11
S Overdrive Wiring Check Austin Healey 12
Michael Oritt Door check installation Austin Healey 7
P TR2/3/3A TR3 turn signal and horn control wiring check Triumph 4
warwick-steve Brake drum check and lubrication Austin Healey 9
1 Price check on an original 1957 100-6 BN4? Austin Healey 29
Mickey Richaud General Tech Always Check the Fundamentals MG 10
F Check out this new restoration diary - BT7 - very brave! Austin Healey 7
D TR2/3/3A Door check bracket? Triumph 7
C Brake issue on my 1969 XKE - what to check first? Jaguar 14
Martinld123 Compression check 1956 BN2 Austin Healey 7
M BN1 door check replacement Austin Healey 9
R Last minute check before engine install Austin Healey 26
Boink Check out some Sprite shots at the Portland ABFM... Spridgets 1
Rut TR4/4A Get out your check books! Triumph 10
Gerald_Gordon TR4/4A Failure of new door-check strap on an early 1961 TR4 Triumph 6
S How to check Dwell on a MK I 3000? Austin Healey 27
K TR2/3/3A Re: TR3 Bump stops and check straps. Triumph 18
PatGalvin TR2/3/3A vacuum leaks? How to check Triumph 9
jlaird Check Spam folder Spridgets 3
I TR6 Got in a wreck - need some help on who to take it to and what to check Triumph 48
HealeyDave Door Check Friction Adjustment Austin Healey 12
RedTR3 TR2/3/3A How to check for cylinder-to-cylinder head gasket leak Triumph 7
sundown TR6 1973 TR6 door check straps Triumph 3
DanLewis Weber 40DCOE - Does it need a check valve in the fuel supply line? Spridgets 4
drooartz General Tech Check those brake hoses! MG 11

Similar threads

Top