decompression plug leaking around threads

[Ryan_289]

I put a new Farmertec P&C on a Husqvarna 51. I fired it up last night and adjusted the carb but noticed after I went to put it up that there was oil around the decomp plug. Its tight but appears to be leaking around the threads. Is there a sealant that will hold up to the heat?

 

[Lowbudgetwhiteboy]

I put a new Farmertec P&C on a Husqvarna 51. I fired it up last night and adjusted the carb but noticed after I went to put it up that there was oil around the decomp plug. Its tight but appears to be leaking around the threads. Is there a sealant that will hold up to the heat?

Make sure it has the little washer on it


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[Bob Hedgecutter]

I put a new Farmertec P&C on a Husqvarna 51. I fired it up last night and adjusted the carb but noticed after I went to put it up that there was oil around the decomp plug. Its tight but appears to be leaking around the threads. Is there a sealant that will hold up to the heat?

One of the things most often replaced by those that build Farmertec kit saws is the decomp valve.
You could try teflon tape- but it would be better to unscrew it, throw it in the trash and replace it with an OEM one- or seeing as how it is a 51, just fit the factory blanking plug.

 

[Ryan_289]

I should have mentioned that it was a 55 kit. It didnt come with a plug so I grabbed one that came with a hyway kit. It did have the 2 washers on it. It's a plug not a valve.

 

[Bob Hedgecutter]

I should have mentioned that it was a 55 kit. It didnt come with a plug so I grabbed one that came with a hyway kit. It did have the 2 washers on it. It's a plug not a valve.

Try teflon tape or any of the liquid thread seal compounds.

 

[67L36Driver]

I wouldn't worry about it really. Every saw I've had here (a freaking bunch) leaks oil around the spark plug threads.

 

[Deleted member 117362]

Clean threads, apply thin coat of Motoseal, install, let it sit over night and run it

 

[Brent Nowell]

Clean threads, apply thin coat of Motoseal, install, let it sit over night and run it

Black rtv works the same way, I’ve done it for a plug on my 550 worked great.

 

[Vintage Engine Repairs]

I have it on good authority that a minor leak at the decomp or spark plug doesn’t tend to cause a problem and that it’ll likely fill with carbon. A leak there won’t cause a lean seizure. That said, If it’s a major leak you’ll lose compression. Doesn’t hurt to do a leak down and see how bad it is.

 

[Mad Professor]

Chinesium!!!

 

[jeffbecky1]

I should have mentioned that it was a 55 kit. It didnt come with a plug so I grabbed one that came with a hyway kit. It did have the 2 washers on it. It's a plug not a valve.

why 2 washers? one is all that is needed. motoseal and 1 washer should take care of it