The old Bulletin Board has been removed from the server. And with recent "spring" cleaning, we are removing links back to it. The BB is still out in cyber space (to some extent) thanks to The Wayback Machine.
Thank you so much for the links, and they do prove interesting....Actually I'm growing weary for the amount of times I have taken this carburetor apart..... On my previous post of earlier this year, I stated buying a Chinese reproduction just to see if in fact it is the carburetor, and I honestly feel that it is...so once I proved there's a fault with the OEM Rochester "B" I still would have an issue with the Rochester "B".....as I would not use the Chinese reproduction as the fix or solution.....It was recommended that installing a Carter 4375S YF carb would be a better substitute, I obtained one, however the linkage would not line up, and there was no way to try it.....This Carter is the correct application, however the linkages are specific to the carburetors and will not interchange. I might add when I did have the carburetor apart I did check the accelerator pump buy filling the bowl & it did squirt, with that said I was confident that it was working correctly......Why is it that I don't recall any of theses issues back in the day ??.....I drove the wheels off a 68 C10 back in 1972 and never had a lick of trouble....Now it seems most every carburetor post is about this bogging issue????
perhaps it isn't the carburetor, and you keep fixing something that isn't broke. If you keep doing something over and over, and keep getting the same results, I would look elsewhere. Just a thought. Why not use the chinese caruburetor if it works? The one you have doesn't work, already the chinese one is better than what you have. And you have already given them your money.
Ok - lets look at this logically.....I'm not a master mechanic....but on the initial start..(cold) - I pull the choke & turn the key....the truck starts, after an initial warm up I gradually push in the choke....every thing is fine runs like it should.....nice idle....with a very slight tap to the accelerator the bogging starts, let up to an idle, and feather the pedal to obtain a higher RPM to take off in first gear..... but not smooth...its rough, just overall miserable....Vacuum was checked & ruled out, as with timing, & vac advance....Just brainstorming at this point....and will resume in the spring when I can work on it...The previous owner installed an HEI distributor, from previous posts it appears that the installation was correct with 12 volts going directly into the circuit....On another note Mike's Carburetor has a new replacement "B" for earlier models 6 cylinders - I believe for 216 & 235. Kinda wondering what that's all about.....Just having a tough time considering any other places on the engine where the problem could be.....
I hate to say this, but with 4 full pages of posts and running around in the same circles, it is time for you to take this truck to a someone who knows what they are doing. There must be a reputable shop in or near Canton, Ohio who can help you. Carl
Glenn...How I wish.....OK hypothetically, if we rule out the carburetor, and any internal engine damage....the focus shifts to electronics.....In my case the only modification is an OEM HEI distributor. - I really have to wonder why the PO replaced the distributor. Well actually, I found some of his posts on another forum where he was trigger happy with doing things with this truck & fortunately only got as far as changing the distributor....As best as can tell....does the wiring look correct?