Straightening an idle screw

[1930artdeco]

Hi All,

I am trying to rebuild a Marvel Carb for my A and am running into some issues. The kit I received has a different idle mix screw that does not appear to fit correctly and is not built like the original. The original is bent (how they did that is anybody's guess), is it possible to unbend it? I might be able to get another original from my parts house but this is a just in case question.

Mike

 

[larry_g]

Looking at the picture instead of trying to straighten the ole one I would try turning the new one down to length if the threads are the same. It seems that only the needle length is to long.

Baring that I would apply a bit of heat to soften the bent screw and gently nudge it back into alignment and figure that some filing of the threads is going to have to happen.

lg
no neat sig line

 

[The Cobbler]

If you can get a nut to fit the thread , put in on so the threads are part way up the straight portion. rest it on the nut & head of the screw, high side up and tap it with something like a chisel between the threads so as to minimize the damage to them. be patient, easy hits and when it's as good as you think ypu can get, run the nut upa nd down several times .

If you can't find a nut that fits protect the threads with something like a pc of lead sheet .

If you have access to a lathe, probably as Larry mentioned above would be the bets if the rest of the dimensions are correct

 

[1930artdeco]

Thanks guys, I hope I can get an original and barring that I would like to turn the new one down. I will just have to do it in a drill as I don't have access to a lathe. Even I am not sure how I am going to do it.

Mike

 

[larry_g]

Thanks guys, I hope I can get an original

Mike

With what has to be a million of these carbs made I'd think most any wrecking yard would have what you need. Have you checked around at http://www.redpowermagazine.com/forums/ ??

lg
no neat sig line

 

[four.cycle]

just in case:

Daryl Hagen
Hagen's Auto Parts
1526 River Rd, Puyallup, WA 98371
(253) 845-7020