Fair price?

[DieselFan]

I don't want to be ripped off,

What would a fair price be for a 582, 250-300 hours silvertop? Just the engine no box? From what I've seen good running condition.

[Morph]

Considering that it needs the 300 hour overhaul I would say R20K if it has been overhauled then R30 K

[DieselFan]

Considering that it needs the 300 hour overhaul I would say R20K if it has been overhauled then R30 K

Thanks for the reply Morph!

This must be one of the most confusing arguments that plagues 2 strokers, at the school there's a 582 with allmsot 800 hours in a few years. No crank change. It's a win / lose, cause the seller will quote those figures of people with high hours and the buyer will go the "what if" route!

How does one know it will need the change, I suppose an inspection can be done pronto ie at the 250 hour mark for selling reasons. Anyone know what the inspection costs?

[skybound®]

The silvertop 582 was the engine with the crank that was more prone to failure. Well that was the result of the research that I could gleen at the time I purchased a machine with a silvertop installed. Every hour after the 300 mark I felt like I was on borrowed time.

At 320 hours could not take it anymore and replaced crank with the newer crank. I want some peace of mind when I am up there

I cant quite remember the technical detail and differences between the original Silvertop crank and the Blue top (refered to as the 582/99), but sure a google would get you more info.

Also the silvertop has a different cooling system to the mod 99. Think the blue top has cooling on the head too whereas the silvertop did not. Or something like that.

[Duck Rogers]

The silvertop 582 was the engine with the crank that was more prone to failure. Well that was the result of the research that I could gleen at the time I purchased a machine with a silvertop installed. Every hour after the 300 mark I felt like I was on borrowed time. ........

I cant quite remember the technical detail and differences between the original Silvertop crank and the Blue top (refered to as the 582/99), but sure a google would get you more info.

Also the silvertop has a different cooling system to the mod 99. Think the blue top has cooling on the head too whereas the silvertop did not. Or something like that.

There's no difference between the cranks. Both equally prone to failure/non-failure

[skybound®]

There's no difference between the cranks. Both equally prone to failure/non-failure

Okay, I probably should have been more specific.

What I was trying to indicate is that a significant number of the silvertops had a different crank to the blue top.

From engine serial number 4,172.665 a new style crankshaft was fitted to the 582. The difference was the crankpin that was changed to a uniform diameter of 26mm.

Although the official reason given by Rotax was to simplify their store keeping, I was led to believe that the previous crankpins were more prone to failure. (I mean who issues a Service bulletin just to simplify store keeping )

If you can find them it was Bulletin 7UL94.

When I had my 582 rebuilt - we took out the old style crank replaced with the newer type with the changed crankpin.