What's on your bench today?

[lakeyboy]

here are pics of the original its not that bad is it? i think when i was looking to replace the piston i saw big bore kits ect ect of course i wanted a bit more grunt seems that i made a mistake now i understood that buying a cylinder kit for £70 quid was never going to be as good as the real thing just didnt expect to be this bad

[lakeyboy]

and yes the new piston is on the right way. dont worry mate i am a fool most of the time haha

[AlvinD]

Ouch that looks cream krackered. But if the rings don't lower down that far it could possibly be ok?

[Rich2484]

£70 not too bad. I've seen cheaper but they are definatly the Chinese ones. And I will never go there again.

 

Did it turn up in a white box?? .

 

I have fitted and meteor piston into another pot, but it wasn't Chinese pot. If its all new I would do a wet comp test, then run a tank it in then do another comp test.

 

The problem, as spud points out often, is the Chinese ones just don't have good rings on the piston.

 

I forget now but were the rings from the old piston any good??

[lakeyboy]

Ouch that looks cream krackered. But if the rings don't lower down that far it could possibly be ok?

 

i hope so seeing as from the sounds of it i wasted money on that bigger aftermarket p/c i wouldnt like to lose the original cylinder aswell

[lakeyboy]

i think the rings were ok cant remember where i put them ??? but the aftermarket was an 066 topend so they would be no good anyway i think i may have to get a comp tester when i have some spare cash. what do you mean by wet test ? sorry for all the questions i can do most basic things but still a bit of an amatuer

[Rich2484]

Wet test means with some fuel going into it. So plug out and pull over a few times to allow the fuel to build up a bit in the cylinder.

 

Makes the rings wet so the fuel acts like a seal around the rings. Could try it dry first and then wet to see if the rings are bedding into the pot or not.

 

It's a bit like a basic car engine comp diagnosis, if the rings are suspect in a car then some oil in plug hole and a test will allow it to become clear if the rings are suspect as a dramatic increase in comp with the oil creating a seal around the rings and cylinder means the cylinder lining or rings are knackerd.

 

Almost same principle in two stroke exept using fuel instead of oil.

[lakeyboy]

right im with you now will have to wait untill i can get a comp tester if the aftermarket p/c is no good spud mentioned meteor pistons ? where would be the best place to get one from ?

thanks again

tim

[Rich2484]

right im with you now will have to wait untill i can get a comp tester if the aftermarket p/c is no good spud mentioned meteor pistons ? where would be the best place to get one from ?

thanks again

tim

 

eBay. Hey are on there. This one is from America but i only done a quick search. You may find more. But check the size you need.

 

Meteor Piston kit for STIHL 066, 066 Magnum, MS660 - MS 660 (54mm) | eBay

[lakeyboy]

lovley job cheers guys