Too much piston-bore clearance? Piston slap? Video

[popopboat]

Hello,
would you guys consider this as too much clearance between piston and cylinder wall?
I know piston is upside down in cylinder, but i cannot really record other way hehe.
Do i must replace piston, if its only completely necessary please. Cylinder walls are in very well shape.

 

[cuinrearview]

That looks pretty sloppy, but it's not conclusive like that. Feelers are the best test. If unavailable I have been known to drop the piston in crown up and invert the jug with the plug and decomp holes plugged. The piston shouldn't drop right out.

 

[popopboat]

It definitely does not, actually it kinda "kicked" when i tried to push it down fast with screwdriver handle. (not the sharp side)

 

[huskyboy]

That looks very sloppy. Get a 35$ meteor, too cheap to say no to cheap insurance and they are good quality.

 

[popopboat]

Would like to, but shipping ends up with additional 30$ so..

 

[huskyboy]

Would like to, but shipping ends up with additional 30$ so..

How much is OEM where you are?

 

[popopboat]

Hard to find an oem here actually.
But i would say around 60$ too, or even more.
I can barely fit half the double sided razor (wilkinson classic) between piston and wall

 

[huskyboy]

Hard to find an oem here actually.
But i would say around 60$ too, or even more.
I can barely fit half the double sided razor (wilkinson classic) between piston and wall

I don’t even need a feeler gauge to tell that piston is worn out, that’s a lot of slop just visually looking at your video. It might run for a little while with new rings... until the skirt breaks and wipes out the motor. Your choice.

 

[popopboat]

I know that its worn out, just wanted to know if its critically worn out or could run for a while safely until i find replacement. I mean im not a logger by any means and it would be used for light duty only.
It has decent compression with old rings.
Has anyone found 52mm piston only on internet (ebay, aliexpress), already searched all over but most are 54mm or 56 kits

By the way this is 064 crankcase/crankshaft with 650 cylinder/piston and 660 handle.
I paid 80$ for it, crankshaft is in top condition (bearing), bearings dont have play, crankcase is in decent shape.
In total with new recoil, exhaust, plastic cover, air filter kit and bar it would cost me 150$.
Is it worth investing in a new piston ?

Lowest price i found 064 is 260$, and prices go up to 400$, and usually is 350$ just for reference.

 

[KennyWinCT]

Saw this online:



I know for 4 stroke small engine pistons I measure the piston at 90 degrees from the wrist pin just under the bottom oil groove. The measuring location will vary from Brand to Brand.

 

[popopboat]

Saw this online:

View attachment 225627

Yep, way too much here.
So i guess ill get a new piston, and it should have long healthy life.

 

[cuinrearview]

Can you save money buying meteor from the guy in italy on ebay?

 

[popopboat]

Can you save money buying meteor from the guy in italy on ebay?

Link please?

 

[cuinrearview]

Israel:
https://www.ebay.com/itm/Meteor-Pis...916360?hash=item4adf4c8ec8:g:tXsAAOSw~1FUWcYW
UK:
https://www.ebay.com/itm/METEOR-Pis...181309?hash=item4da51642bd:g:duAAAOSwFnFV-YRY
I'm sorry, I'm not seeing the Greek(not Italian) fella right now. @AlfA01 knows him. Dankridop or something like that.

 

[tree monkey]

Israel:
https://www.ebay.com/itm/Meteor-Pis...916360?hash=item4adf4c8ec8:g:tXsAAOSw~1FUWcYW
UK:
https://www.ebay.com/itm/METEOR-Pis...181309?hash=item4da51642bd:g:duAAAOSwFnFV-YRY
I'm sorry, I'm not seeing the Greek(not Italian) fella right now. @AlfA01 knows him. Dankridop or something like that.

he's looking for 52mm not 54 mm

 

[popopboat]

Sorry, need 52mm not 54.
Found a guy in germany, for 20$, and overhere i found for 26$, but AIP not meteor.
Can you tell me is it even worth putting new piston or should i resell it and get money back?

 

[cuinrearview]

he's looking for 52mm not 54 mm

Sorry, need 52mm not 54.
Found a guy in germany, for 20$, and overhere i found for 26$, but AIP not meteor.
Can you tell me is it even worth putting new piston or should i resell it and get money back?

Sorry. I searched 52 first but thought "those 064s are more rare, and most of these sellers handle the full line anyway". Looks like you're on your way though.

 

[cuinrearview]

Sorry, need 52mm not 54.
Found a guy in germany, for 20$, and overhere i found for 26$, but AIP not meteor.
Can you tell me is it even worth putting new piston or should i resell it and get money back?

I'd definitely re-build it.

 

[Teemore]

Have a look at this: https://www.ebay.com/itm/Meteor-Pis...118255?hash=item4aca08402f:g:UOcAAOxypNtSgBfW
I did a bit of research about aftermarket pistons some time ago and I came across people who have been happily using AIP pistons. None claimed they were OEM quality but they were deemed OK. If you can't get the Meteor piston at a price that suits, it would probably be better to run an AIP piston with OEM wrist pin, needle bearing + clips than your current worn piston. Saegenspezzi in Germany seem to sell lots of AIP pistons....

 

[popopboat]

Thanks everyone!
I definitely decided to re-build it.
According to my needs, it will probably last me for a lifetime (annual firewood), but i will always have a saw that i can rely on.
Ill make some pictures when i get everything what i need for a rebuild and will make a post about it, i doubt before summer.
Thats gonna be complete rebuild, from bits. Also re-powdercoating of a crankcase.
I guess that ill have some really nice time doing it as i enjoy doing that stuff.