mowerman Posted May 2 Share Posted May 2 OK Tom, you got us all hanging on a limb. Let’s get her buttoned up and let us know what she does ha ha Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-550941 Share on other sites More sharing options...
other dog Posted May 3 Author Share Posted May 3 19 hours ago, mowerman said: OK Tom, you got us all hanging on a limb. Let’s get her buttoned up and let us know what she does ha ha I will, I'm just waiting on the spacer and gaskets now. I ordered a kit too, but I probably don't need it. But, on the other hand, taking it apart and giving it a good cleaning couldn't hurt, that gas that was in it did look pretty bad. 1 Quote Producer of poorly photo-chopped pictures since 1999. Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551014 Share on other sites More sharing options...
mowerman Posted May 3 Share Posted May 3 That’s what I would do while you got it off you might as well go through. It Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551019 Share on other sites More sharing options...
mowerman Posted May 3 Share Posted May 3 Where the hell did you find parts for that thing? Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551020 Share on other sites More sharing options...
other dog Posted May 3 Author Share Posted May 3 5 hours ago, mowerman said: Where the hell did you find parts for that thing? https://www.carbs.us/ Quote Producer of poorly photo-chopped pictures since 1999. Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551028 Share on other sites More sharing options...
mowerman Posted May 3 Share Posted May 3 excellent Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551029 Share on other sites More sharing options...
other dog Posted May 9 Author Share Posted May 9 So here's the latest latest update. I got the carburetor kit and spacer in the mail yesterday. I was so sure that the too long studs was the problem I didn't wait to have the kit put in the carburetor, I slapped the spacer and carburetor on the truck and fired it up. This morning I took the carburetor off so I can have the kit put in it. It doesn't run any better than it did at first. Needless to say, I'm getting very frustrated with it. So here's a picture of a girl in a car that I took when I was sitting in traffic on I-40 in Knoxville in 2020. Pretty sure she knew I was looking too. 1 Quote Producer of poorly photo-chopped pictures since 1999. Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551406 Share on other sites More sharing options...
Popular Post Mark T Posted May 9 Popular Post Share Posted May 9 Ya know ??? for a novelty truck like you'll be using it, probably any carb with the same base bore spacing will get it to run. It's only a 400, lots of Fords used a 2 barrel on 390s and such. 3 Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551424 Share on other sites More sharing options...
mowerman Posted May 10 Share Posted May 10 Ya 2 barrel holly I had lots of them 292-312. Bob Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551451 Share on other sites More sharing options...
Mark T Posted May 10 Share Posted May 10 Some old carbs wear around the throttle plate rod that goes through the base plate. Makes vacuum leaks there's no fixing 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551452 Share on other sites More sharing options...
Geoff Weeks Posted May 10 Share Posted May 10 51 minutes ago, Mark T said: Some old carbs wear around the throttle plate rod that goes through the base plate. Makes vacuum leaks there's no fixing Yeah, those can be fixed but not with just a gasket kit. I'm looking at an old Zenith and may be a Carter that need that fixed. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551453 Share on other sites More sharing options...
Freightrain Posted May 10 Share Posted May 10 5 hours ago, Mark T said: Some old carbs wear around the throttle plate rod that goes through the base plate. Makes vacuum leaks there's no fixing A mill and a ream will fix worn throttle shaft. Press new bushing in, presto, good as new. Changing to different carb would only be an issue of bolt pattern/bore size was odd? Not sure how interchangeable that stuff is back then? Let me know if you want me to help Tom. I can even do the throttle shafts for you. 2 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551464 Share on other sites More sharing options...
Popular Post tjc transport Posted May 10 Popular Post Share Posted May 10 i had an 87 F150 stepside come in to the shop once with erratic throttle. 302 with SROD trans. the throttle shaft on the throttle body was so worn out the throttle would bind on full throttle. it also had a massive vacuum leak through the shaft bushings. the guy did not believe me till i showed him. got a throttle body out of a junk yard from a low mile wreck. cost $150 total for diagnosis and repair. it had been to 4 other shops and no one could figure out what was wrong with it. 3 Quote when you are up to your armpits in alligators, it is hard to remember you only came in to drain the swamp.. Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551467 Share on other sites More sharing options...
other dog Posted May 11 Author Share Posted May 11 2 hours ago, Freightrain said: A mill and a ream will fix worn throttle shaft. Press new bushing in, presto, good as new. Changing to different carb would only be an issue of bolt pattern/bore size was odd? Not sure how interchangeable that stuff is back then? Let me know if you want me to help Tom. I can even do the throttle shafts for you. Well thank you, thank you very much! 1 Quote Producer of poorly photo-chopped pictures since 1999. Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551474 Share on other sites More sharing options...
Mark T Posted May 11 Share Posted May 11 22 hours ago, Freightrain said: A mill and a ream will fix worn throttle shaft. Press new bushing in, presto, good as new. Changing to different carb would only be an issue of bolt pattern/bore size was odd? Not sure how interchangeable that stuff is back then? Let me know if you want me to help Tom. I can even do the throttle shafts for you. That's exactly what cures that issue. in 2024, not many guys are aware of that repair or able to make it. I'd be looking in that area if I was looking for a vacuum leak. (IDK.... does eather even work for that any more ?) 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551518 Share on other sites More sharing options...
Joey Mack Posted May 11 Share Posted May 11 I switched to Brake clean.. it changes the engine speed either way, up or down.. ether seems to be different.. I'm with you MarkT 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551527 Share on other sites More sharing options...
Geoff Weeks Posted May 11 Share Posted May 11 Hey Jo-Jo does your K-7 have a Zenith, Carter or Holley? I'm going through mine now and got the IHC "Shop talks" on the Zenith and Carter as they show the breakdown of the carb and sequence better than the shop manual. Also list the factory tools, but finding a set might be hard. Shop talks are IHC's training manuals that go into more depth, kind of like what you get at a factory school today. Anyway, I could try and scan them if you want one. I think at least one of my Carter's is going to need a sleeve in the throttle shaft bore. Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551529 Share on other sites More sharing options...
Joey Mack Posted May 12 Share Posted May 12 G W,, its a Carter BBR-1.. I rebuilt it last year. O'Reilly carb kit P/N.15021B 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551532 Share on other sites More sharing options...
Geoff Weeks Posted May 12 Share Posted May 12 My BBR is going to need throttle shaft work if I am going to reuse it., might get another Zenith on it until I get around to machining the throttle shaft bore and sleeving it. Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551533 Share on other sites More sharing options...
mrsmackpaul Posted May 12 Share Posted May 12 In the mean time if the CRC/brake clean shows a leak a big dollop of grease will seal up the shaft to prove it's sucking air Even if the CRC/brake clean jobby shows nothing shoving grease everywhere will help show any possible air leaks That been said I reckon theres a blockage in the carby from what we know so far Paul 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551543 Share on other sites More sharing options...
mowerman Posted May 12 Share Posted May 12 On 5/10/2024 at 3:21 PM, Freightrain said: A mill and a ream will fix worn throttle shaft. Press new bushing in, presto, good as new. Changing to different carb would only be an issue of bolt pattern/bore size was odd? Not sure how interchangeable that stuff is back then? Let me know if you want me to help Tom. I can even do the throttle shafts for you. Sure pay to know somebody in the machine shop business I was thinking the same thing …. Bob 1 Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551583 Share on other sites More sharing options...
Joey Mack Posted May 12 Share Posted May 12 Carbs are soft, you can hand ream it and press or tap in new bushings coated with sleeve retainer.. of course finding bushings may be an issue.. Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551584 Share on other sites More sharing options...
Popular Post Geoff Weeks Posted May 12 Popular Post Share Posted May 12 Bushing are no problem internet search show all sizes with reamers included. Trick is being careful on the set up so you keep the shaft centered where it was to begin with. Get the alignment wrong and the throttles will not close properly, or the ports will be in the wrong area to function properly. 3 Quote Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551585 Share on other sites More sharing options...
Freightrain Posted May 12 Share Posted May 12 Just now, Geoff Weeks said: Bushing are no problem internet search show all sizes with reamers included. Trick is being careful on the set up so you keep the shaft centered where it was to begin with. Get the alignment wrong and the throttles will not close properly, or the ports will be in the wrong area to function properly. That's where havng a few reams and test fit and find one and use it for setting centerline. Definitely need to adjust throttle blades when putting it back together so everything closes perfectly. Tom did shoot around the base and didn't note any changes in RPM. I'm still hoping for something plugged in the carb. Time will tell. 1 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551586 Share on other sites More sharing options...
Freightrain Posted May 12 Share Posted May 12 31 minutes ago, mowerman said: Sure pay to know somebody in the machine shop business I was thinking the same thing …. Bob No doubt. Worked in machine shop for 38 yrs. Handy thing to learn. 2 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/73997-pictures-of-the-week/page/18/#findComment-551587 Share on other sites More sharing options...
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