Jump to content

Log in or register to remove this advert

Husqvarna 372 piston


carpenter1
 Share

Recommended Posts

My husqvarna  372 started to not idle and being difficult to start. Took it to the dealer, there saying the bore is scored and the piston rings are stuck. They are saying I mixed the fuel and oil wrong. But I always run on Aspen. What else could of caused it?

I did notice when it started to not idle, the exhaust was slightly loose, and the 4 bolts holding the cylinder down where loose, so tightened both to try again. But still the same, any idea to the cause?

Link to comment
Share on other sites

Log in or register to remove this advert

3 minutes ago, carpenter1 said:

My husqvarna  372 started to not idle and being difficult to start. Took it to the dealer, there saying the bore is scored and the piston rings are stuck. They are saying I mixed the fuel and oil wrong. But I always run on Aspen. What else could of caused it?

I did notice when it started to not idle, the exhaust was slightly loose, and the 4 bolts holding the cylinder down where loose, so tightened both to try again. But still the same, any idea to the cause?

Air leak making it run lean . Probably salvageable if its only a light nip up . New OEM or Meter piston and rings  remove aluminium tranfer and a light hone on the bore . Check for other potential air leaks though  as you don't want to do all that over again !

Edited by Stubby
  • Like 3
Link to comment
Share on other sites

30 minutes ago, Stubby said:

Air leak making it run lean . Probably salvageable if its only a light nip up . New OEM or Meter piston and rings  remove aluminium tranfer and a light hone on the bore . Check for other potential air leaks though  as you don't want to do all that over again !

So the loose exhaust and cylinder could of caused it? 

Link to comment
Share on other sites

Just now, carpenter1 said:

So the loose exhaust and cylinder could of caused it? 

Yes . A good alternative to the above would be to send it to Spud to fix and get him to port at the same time .

  • Like 1
Link to comment
Share on other sites

Yup, any air leak will lean the saw down and will let it over rev. A loose cylinder will cause a big air leak, it may damage the base gasket, scuff the cylinder and in bad cases, fracture the cylinder lugs that clamp it to the crankcases.

A loose muffler will allow the saw to over rev and also heat up the cylinder nicely with leaking exhaust gases so a seize is immanent.

  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

  •  

  • Featured Adverts

About

Arbtalk.co.uk is a hub for the arboriculture industry in the UK.  
If you're just starting out and you need business, equipment, tech or training support you're in the right place.  If you've done it, made it, got a van load of oily t-shirts and have decided to give something back by sharing your knowledge or wisdom,  then you're welcome too.
If you would like to contribute to making this industry more effective and safe then welcome.
Just like a living tree, it'll always be a work in progress.
Please have a look around, sign up, share and contribute the best you have.

See you inside.

The Arbtalk Team

Follow us

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.