582 top end overhaul

Re: 582 top end overhaul

by bill martin » 12 years ago

bill martin

10 757 0

Howard,

The 300 hr. overhaul is a complete overhaul. Crank seals, bearings et.al. If you are just going to do a top end, you probably don't need pistons. Do a compression check first. If it's OK just pull the cylinder head and jugs, remove the pistons and clean them. While everything is apart, you could clean the cylinder walls with a bottle brush hone and put in some new rings if necessary. If you do remove or replace the rings, be sure to note the pins inside the ring grooves and seat the rings with the open end at the pins. MAKE SURE that the pistons are replaced with the ring pins away from the exhaust port. There is an arrow stamped in the top of the piston to mark which way they go. Put the pistons in with the pins at the exhaust side and you will destroy the engine. Other than that, it's a fairly easy job. I have seen people clean the pistons without removing them but I wouldn't recommend it. If the crud you remove from the piston tops and grooves gets down in the crankcase it could cause problems.

Bill.

Re: 582 top end overhaul

by Howard Dyer » 12 years ago

Howard Dyer

4 7 0

Thanks Bill for your wise words, I will go with what you said.
Designed cranes all my life ( retired mech engineer) now its time foe me to get my hands dirty.

Re: 582 top end overhaul

by bill martin » 12 years ago

bill martin

10 757 0

Howard,

If you've never done a 582 before, you are going to enjoy it. It is a well built, well engineered little engine.

Go to the california power systems- airwolf website

www.cps-parts.com/

Click on rotax engines and parts on the left side of the page, then click on tech articles. You will find a gold mine of info there to help you.

Bill.

Re: 582 top end overhaul

by Howard Dyer » 12 years ago

Howard Dyer

4 7 0

Thanks again Bill will have a look @ cps