• Hi Guest! Being a Paid Subscriber is NOT required to participate at BCF. However, 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

TVR 2500M Triple Weber 40 DCOEs

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
Ahead of all the other things, as I mentioned before you should check the accelerator pump jets for blockage. It's not uncommon for them to have build-up from ethanol fuel mix if they sit for periods of time without having fuel run through them. The jet holes are SMALL and difficult to clean easily, too. But at least they're easily accessible without having to tear into the carb bodies.

Summit Racing and Red Line also have Weber bits.
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
And if you have a "jones" for expanding the tool collection, a set of pin gauges would allow you to measure the choke I.D. Otherwise a set of "I.D. dividers" would come close enough if you take your time and do it carefully:

SS2_4SM.JPG


Pardon the rust on the dividers, I'm the third generation owner. 😉
 

Rocky_LC

Member
Country flag
Offline
Hi Dr.

I’ve got all those tools, but unfortunately at my other house.

I’ll continue working this, and will certainly figure out where the accelerator pump jets are, and how to access them.

Rocky
 

Rocky_LC

Member
Country flag
Offline
By the way - the good Dr. asked for compression numbers:

1 - 135 lbs.
2 - 130 lbs.
3 - 130 lbs.
4 - 150 lbs.
5 - 145 lbs.
6 - 160 lbs.

These were taken "dry" with the throttles wide open.

Rocky
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
First three a bit low but shouldn't be a problem overall. Pump jets located and checked?

Forgot to refer to Pierce Manifolds for Weber jets an' such. Very helpful folks, too.

And didn't mean to be a poopy-head with the photo of the pin vises post, just underestimated your experience level with tools. Sholda known better with the cars you list in your signature file. Apologies! 😉
 

Rocky_LC

Member
Country flag
Offline
No problem. Not yet. Watched a couple videos about it, though.

Took the car out for a nice drive today. It was fun.
 

Attachments

  • FE43408C-9BEB-4559-806B-0BFE774ABDF3.jpeg
    FE43408C-9BEB-4559-806B-0BFE774ABDF3.jpeg
    363.5 KB · Views: 24

Tybalt

Jedi Trainee
Country flag
Offline
Very nice. I saw the background and thought has to be somewhere in the southwest, looked at your profile and saw Tucson. In a former life I used to get to spend time off and on at beautiful Fort Huachuca, mostly on radar stuff for the Army but some for the Customs Service as they were bringing the aerostats into the game of Feds and Heads (really the smugglers that supplied the heads). The Customs Service had an office at Davis-Montham so whenever we went to meet with them at that office, we always tried to arrange for a bit of time to kill so we could take a trip out to the D-M AFB boneyard.
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
we always tried to arrange for a bit of time to kill so we could take a trip out to the D-M AFB boneyard.
Can't find an envy icon. But (y) !

Rocky, glad you got it out for a leg stretch.
 
Last edited:

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
Inquiring minds and all that.
 

Rocky_LC

Member
Country flag
Offline
I know I have been quiet lately, but….

I have gotten 3 Weber rebuild kits, air cleaner gasket sets, a can of carb dip, and cleaning brushes…

So fairly soon, I’ll start on them….

Sorry I’m mining sluggishly, it’s a busy time for me!

Rocky
 

Attachments

  • 8C0ECEBE-8120-446C-B3F3-872F2623B24D.jpeg
    8C0ECEBE-8120-446C-B3F3-872F2623B24D.jpeg
    282 KB · Views: 12

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
I know I have been quiet lately, but….

I have gotten 3 Weber rebuild kits, air cleaner gasket sets, a can of carb dip, and cleaning brushes…

So fairly soon, I’ll start on them….

Sorry I’m mining sluggishly, it’s a busy time for me!

Rocky

Good stuff though!

Pleased to see the kits.
 

Tybalt

Jedi Trainee
Country flag
Offline
And how timely that this should drop into my inbox, 5 Weber Spares Every Toolbox Should Contain


It's also a reminder that I have been somewhat remiss in keeping some of spares inventory up for maintenance items.
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
It's also a reminder that I have been somewhat remiss in keeping some of spares inventory up for maintenance items.
Particularly the O-rings on pump jet covers. I've had a devil of a time with those. In the last few years it seems they deteriorate rapidly. Blaming it on ethanol additive. Just went through the DCOE on the MG and the things crumbled to pieces.
 

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
Hope this thread doesn't go another eleven years before we see interest!
 

Rocky_LC

Member
Country flag
Offline
We are working our way forward, and circumstances are driving me towards the rebuild….

Head has been reworked, and installed.

Note new Throttle cable bracket, And the “custom bracket” that it replaced!

The rocker assembly goes on tonight, And the manifolds may get bolted up tomorrow.

Weber anti-vibration seals have been procured, and the rebuild should start soon (maybe one done before our trip to LeMans Classic?).

I haven’t forgot about you guys. I’m glad you’re thinking of me!

Rocky


66F72213-ABE5-4D8B-9563-0B64F2CB4A99.jpeg
C5367F08-96B7-448C-AA04-65DC7EB38823.jpeg
A8D3EDD5-86AB-4960-BF9E-BE0CD58B400B.jpeg
 
Last edited:

DrEntropy

Great Pumpkin
Gold
Country flag
Offline
Wow, Rocky! That's quite a bit more in-depth than a carb rebuild! Looks like good progress though. Rocker assembly & manifolds on by now?

I just went through a similar deal with our MGB. Head off, reseated valves, replaced springs and seals. Had a devil of a time finding a ~good~ head gasket. Seems every maker has gone to some flimsy composite thing. First of those failed instantly.

That "reverse S-curve" cable stay is a "work of art"!! In other words, hang it on the garage wall. 😉

I'd be half ashamed to show what we did on a home-made Weber manifold for the MG to get the throttle cable rigged. :rolleyes: Mr. R. Goldberg would be proud.
 

Rocky_LC

Member
Country flag
Offline
OK, got some questions on my efforts already.

1) Are these the air bypass screws? They look different than in the video that I’m watching.

2D7D201A-2B55-4623-8735-8E148CF079C4.jpeg


2) Is my idle adjustment screw on the left messed up? It looks like the taper has been jammed in, and it was a turn and a half further and then the other one was.

CAA3C983-9DBB-4EFD-AFD8-899769035889.jpeg


3) why would my main jets look different at the end? These jets only seem to come apart in three pieces, the video I watched the guy got four pieces out of them.

7CAD3EB1-0F37-41FF-9A95-58535B8A3974.jpeg


Thanks for your help! Remember you guys started this!

Rocky
 

Rocky_LC

Member
Country flag
Offline
Why does the right side choke plunger have that little pin, and the left side doesn’t?

Is that bad? I rarely use my choke ever anyway.
B853C6B1-FFE9-44E1-BCE8-E6B41B7561EA.jpeg
 
Similar threads
Thread starter Title Forum Replies Date
bravenrace WTB - TVR 2500M TVR 0
O TVR 2500m weatherstrip source needed TVR 2
Z Just Restored 1973 TVR 2500M, Barn Find TVR 25
T Tvr 2500m For Sale, Nice Original Solid Example. TVR 1
Jastx TVR 2500M tires - what are you running TVR 7
M TVR 2500M Model TVR 4
J TVR 2500M Shop Manual TVR 9
WhatsThatNoise TVR 2500M Parts Car.......For Sale Other British Cars 6
Slider748 TVR 2500M vs TR6 Other British Cars 6
D TVR 2500M wheel question? Other British Cars 3
JoeO 72 TVR Vixen hybrid restoration TVR 1
JoeO 71 TVR Vixen V8 Conversion TVR 26
Grantura_MKI TVR owners. TVR 1
M 1963 TVR Grantura TVR 6
2 1972 TVR Vixen 2500 Radiator TVR 6
Grantura_MKI New TVR TVR 2
arcom For Sale TVR T-Slot 14" Rim and Tire Other British Classifieds 0
JPSmit TVR Typhon Spotted 0
V TVRCC National Drive your TVR Day UK TVR 1
V Le Mans Classic 2016 Early TVR Road trip Adventure TVR 6
Mickey Richaud TR2, TVR Chimaera, MGB... Spotted 8
V TVR Vixen S2 New Pictures TVR 1
V TVR Tuscan Restoration TVR 8
V Changes in TVR Parts Supply TVR 1
V TVR Tuscan headlining Bows TVR 3
V Nice looking TVR Vixen S2 For sale TVR 1
J TVR engine advice please TVR 7
I TVR shop manual TVR 7
glemon Great Wheeler Dealers tonight, Lamborghini and TVR Other Cars 1
T TVR Vixen TVR 3
B TVR with Essex V-6 engine question TVR 5
Z TVR Tuscan Spin Mid Ohio 2012 Racing 0
Marvin Gruber TVR Value TVR 1
T 1972 tvr 2500 TVR 3
aeronca65t TVR EBay-MD TVR 2
Z Mid Ohio TVR / Watkins Glen GT40 Racing 15
aeronca65t TVR for sale TVR 0
aeronca65t Turkey Bowl-TVR TVR 12
Tullamore Rearended in TVR Vixen TVR 16
aeronca65t Another TVR-NH TVR 1
C Very nice Triumph-Powered TVR 2200 Special Racing 9
R Great Showing of TVR's TVR 4
Jastx Greetings from new TVR owner TVR 7
G Early TVR's@ Amelia Island Concours TVR 2
JPSmit TVR Tasmin Spotted 0
aeronca65t TVR 2200? TVR 11
MadRiver Washington DC -- Black TVR 2500 M Spotted 0
aeronca65t TVR @ NJMP TVR 5
V Nice TVR for sale TVR 3
C '69 TVR Tuscan V6 build details [with photos!] Racing 2

Similar threads

Top