Stihl 012, need a little help.

[czar800]

I've got a 012 on my bench that's leaking fuel into crankcase. After looking around some I'm finding out they could have used to different gaskets? Should I just make a gasket? Thanks in advance.

 

[jmssaws]

I've used Dirko for case gaskets many times.

 

[czar800]

No paper?

 

[czar800]

I only have 518 laying around at the moment.

 

[Adirondackstihl]

Gasket PN# 1120 029 0502

 

[Lone Wolf]

I only have 518 laying around at the moment.

Well sometimes you need the gasket to keep the crank shimmed right. No gasket it could jam . I would make one and check the crank to see if it spins freely after together.

 

[Adirondackstihl]

You sure the carb isn't the culprit?
Weak metering spring, worn needle, stiff metering diaphragm......etc, would cause that as well.

 

[czar800]

You sure the carb isn't the culprit?
Weak metering spring, worn needle, stiff metering diaphragm......etc, would cause that as well.

That was my thoughts.

 

[czar800]

Oops quoted the wrong guy.

Well sometimes you need the gasket to keep the crank shimmed right. No gasket it could jam . I would make one and check the crank to see if it spins freely after together.

I was thinking you needed to gasket also.

 

[czar800]

You sure the carb isn't the culprit?
Weak metering spring, worn needle, stiff metering diaphragm......etc, would cause that as well.

I'll pull the fuel line off and leave it sit.

 

[czar800]

Not my favorite series of saw to work on.... Btw carb kit is in the mail.

 

[Adirondackstihl]

If you need an IPL, let me know

 

[czar800]

If you need an IPL, let me know

Sure! if it's not a big hassle.

 

[Adirondackstihl]

Sure! if it's not a big hassle.

PM me your email address
No problem

 

[67L36Driver]

A client has an 012 that runs and cuts great. Head and shoulders better than an 011. Must be the displacement makes the difference.

 

[Black Dog Chainsaw]

PM me your email address
No problem

which carb it has makes 1000% difference. The early ones had a pretty narrow venturi as I recall. the 009/010/011's should all have 38mm P&C's and the 012's had 40mm (all from memory).

OP,
Yes use a gasket but use a thin layer of yamabond, 3bond, dirko, hondabond, etc on both sides of the gasket. They are a bigger PITA to seal than normal crankcases since you are needing to seal oil tank, gas tank, and bottom end.

Yes there are 2 different gaskets!!! just get the kit
http://www.ebay.com/itm/STIHL-CHAIN...KET-SET-/361475162645?&_trksid=p2056016.l4276

 

[czar800]

It has a WT 29 on it.

 

[jmssaws]

No paper?

Nope.
I've only done 066's that way,smaller the case the better. Every little bit helps.

 

[sefh3]

My 011 is paperless. Just use a generous amount to assure you don't have a leak.

 

[czar800]

You sure the carb isn't the culprit?
Weak metering spring, worn needle, stiff metering diaphragm......etc, would cause that as well.

We have a winner!! I rebuilt the carb and it's running nice. Thanks for the IPL.