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I would like to know how to distinguish between different trim rings (and specifically which one I have on hand). This one has 48 catches with three "teeth" each and 1 catch with only two "teeth". Measuring diameters with a tape measure, I find 15 1/4 inches on outside and 12 3/4 inches on the...
I used to set my small block bracket racer with 35 degrees total timing (with vacuum advance disconnected). Now I wonder where to set the timing when first starting a re-build which would be a 2,000 - 3,000 rpm fast idle? And would that be set with or without distributor vacuum advance hose...
Update: Rebuilt the 6139S ThermoQuad (1972 340 Auto application). The fuel wells that are attached with epoxy from the factory had not yet failed, so I left them alone for now. This model had the superior brass floats.
I purchased a '72 340 Thermo--Quad some years ago for in the nieghborhood of $100 or so. Now I find two carbs with the same number, one listed at five times what I paid and the other listed at six times (and they are not even rebuilt yet. I don't know what this has to say about the future of the...
Thank you but that website won't load for me and putting quadrajetparts.com won't work either for some reason. It maybe due to my Mexico location which causes problems from time to time.
Need missing spring as shown in carb kit diagram photos #1 and #2 (or if a forum member can provide a source for such spring that would be nice as well). #3 photo shows my '72 340 6139S Thermo-Quad where the missing spring should be on the left hook and on the bottom hole. Then #4 photo shows...
That's the correct factory opening as manufactured. My problem as you can see was the wasp nest was only permitting the secondary system to open half-way.
Getting ready to rebuild the 6139S ThermoQuad I plan to use on the '72 Satellite Sebring Plus 340/305 project (see thread: "Project Odyssey"). Well, took the carb out of the box it was shipped in and first thing I did was open the throttle. I found the secondaries would only open part way. Oh...