Famrall M Carburetor

39MPuller · Jun 4, 2011

I am working on an M that I was rebuilding the carburetor on and noticed that wide open stop pin on it is wore about in half. It is the pin that stops the throttle shaft at full throttle to keep the butterfly perfectly straight up and down. Well, with this one wore like that, it lets the butterfly go past straight up and down and would in turn, be not quite all the way open for max power. Has anybody else seen this and if so, how did you get that pin out to replace it. Also, could you just adjust the carb to governor linkage a little shorter as too not push it up that far? Thanks for any input.

39MPuller · Jun 4, 2011

sorry I didn't spell Farmall right in the heading.

Nebraska Cowman · Jun 4, 2011

actually it don't matter. As long as you get the fist and last parts of the word right you can scramble the letters in between and our minds will sort it out.

I cnduo't bvleiee taht I culod aulaclty uesdtannrd waht I was rdnaieg. Unisg the icndeblire pweor of the hmuan mnid, aocdcrnig to rseecrah at Cmabrigde Uinervtisy, it dseno't mttaer in waht oderr the lterets in a wrod are, the olny irpoamtnt tihng is taht the frsit and lsat ltteer be in the rhgit pclae. The rset can be a taotl mses and you can sitll raed it whoutit a pboerlm. Tihs is bucseae the huamn mnid deos not raed ervey ltteer by istlef, but the wrod as a wlohe. Aaznmig, huh? Yaeh and I awlyas tghhuot slelinpg was ipmorantt! See if yuor fdreins can raed tihs too.

DeltaRed · Jun 4, 2011

Yes!I can read it perfectly!

rustyfarmall · Jun 5, 2011

(quoted from post at 15:15:22 06/04/11) I am working on an M that I was rebuilding the carburetor on and noticed that wide open stop pin on it is wore about in half. It is the pin that stops the throttle shaft at full throttle to keep the butterfly perfectly straight up and down. Well, with this one wore like that, it lets the butterfly go past straight up and down and would in turn, be not quite all the way open for max power. Has anybody else seen this and if so, how did you get that pin out to replace it. Also, could you just adjust the carb to governor linkage a little shorter as too not push it up that far? Thanks for any input.

I've rebuilt a bunch of those carbs and never seen like you describe, but that doesn't mean yours isn't that way. I think that pin is pressed in, or driven in, however you want to describe it. Probably could grab the hot wrench, heat the pin and the area around it, let it cool a bit and then grab the pin with a pair of vice grips and pull it out. I don't know for sure if that trick will work 'cause I've never tried it. I may go to the shop later, grab a carb top that is beyond saving and experiment a bit.

D Slater · Jun 5, 2011

Pin wear is not uncommon. May not be ideal, but the pin end can be bent over toward the shaft on most to get the butterfly straight up. Drawback then is the throttle shaft won't make full contact with the stop pin after bending, but will last a long time without wearing the pin end down the way most M tractors are used now.

D Slater · Jun 5, 2011

I must be a redneck, looks like normal writing to us uns.

rebelyell1980 · Jun 6, 2011

Ok got to say I got a s w missouri education but u spell like u talk so it easy to read

Famrall M Carburetor

39MPuller

Member

39MPuller

Member

Nebraska Cowman

Well-known Member

DeltaRed

Well-known Member

rustyfarmall

Well-known Member

D Slater

Well-known Member

D Slater

Well-known Member

rebelyell1980

New User

Similar threads