rebuild?

[wtmtnterror]

I have a 74 fj40 with the stock motor, the carb needs some serious attention, seems to run well but it leaks from the gaskets. was wondering if someone who has never rebuilt a carb (myself)should tackle this job. Or should I just buy a rebuilt and go on. I have the fsm for my 40 and haynes manual. what would be the cost difference?

 

[teapot]

you just might want to replace the gasket and see if that is the problem before you rebuild the carb

 

[Degnol]

'70-'74 carbs are pretty straightforward to do. A gallon of Berryman's Carb Dip, some compressed ait and a $15.95 rebuild kit from CarQuest or Napa or O' Reilly's. No internal adjustments. Just disassemble, clean, install new parts and reassemble. You should be good to go.

I've done 5 with good results. And I'm not a mechanic by trade.

GL
Ed

 

[16-in-Dec]

Can you give any advice on a '69, Any more difficult than a '70?

 

[65swb45]

Can you give any advice on a '69, Any more difficult than a '70?

If it's a March -September 69 [the one with the stud in the middle of the air horn] DONT BOTHER. It's a POS.

 

[Quazii]

If it's a March -September 69 [the one with the stud in the middle of the air horn] DONT BOTHER. It's a POS.

You got that right! My truck is a Sept. '69. You would be hard pressed to find a replacement secondary diaphram. It's also taller than the other carbs. If you replace with a Weber and want to keep the stock air cleaner you'll have to raise the housing.

As for the original question, rebuild it. If you mess it up no big deal since you where thinking of replacing it as an option. It's not hard once you jump into it and will be a good learning experience.

 

[16-in-Dec]

The engine runs fine with this carb but it is wet. I have a 70 with out hte center stud but I have never heard it run. What are the symptoms of a bad secondary diaphram?

 

[Pighead]

If you have the FSM, you can rebuild that carb. '74 was a good year for carbs, still simple. I've rebuilt mine a dozen times. Even started tweaking them when I figured out how they work. Lots of good info in the technical links. If you find a good rebuild kit, buy a few of them. Used to be, a good kit came with the air correction jets and main jets and everything. If you can find one of those, stock up. They're not getting any easier to find or any cheaper.

 

[Pighead]

The engine runs fine with this carb but it is wet. I have a 70 with out hte center stud but I have never heard it run. What are the symptoms of a bad secondary diaphram?

If you have a '70, no center stud, I don't think you have a secondary diaphragm. You should have a mechanical secondary.

 

[JohnL]

Send it to jim chenowith to get overhauled and adjusted. From then on, you know you have a good baseline for all adjustments/future overhauls.

His address is easy to find with a 'search.' Many good experiences here with him.

 

[CruisinTiger]

I have a 68 and the carb leaked like crazy, the motor was weak with this carb. Didn't wanna rebuild it so I bought a weber and man does it rock. Hell it's like havin a second engine in there. Ya know it's cool to have a completely stock cruiser, but man I think I'd make an exception with replacing the carb. And pick one ya like, I just happen to put a weber in cause that's the one I had the most knowledge about, which aint sayin much. But you'll be amazed.

 

[offrd63]

Send it to jim chenowith to get overhauled and adjusted. From then on, you know you have a good baseline for all adjustments/future overhauls.

His address is easy to find with a 'search.' Many good experiences here with him.

Does Jim c. do any work on carbs for a 22R, or does he just work on cruiser stuff?