Is there a way I can identify what brand BB sleeves I have? Ive got a set of 86mm 62t cylinders that need a bore but I dont want to go over 86mm so want to resleave them. I am hoping to be able to drop these sleeves, put in a new set and port match them to the cylinders. Is this a feasable option or am I asking to much?
Identifying sleeves?
- Thread starter yamanube
- Start date
#ZERO
Beach Bum
- Location
- Florida - U.S.A.
Post a picture of the sleeves and measure the outside diameter.
Also measure the height from the top of the exhaust port to the deck surface.
Also measure the height from the top of the exhaust port to the deck surface.
Can anybody tell me what the OD is on the very bottom of the sleeves (part that extends out of the castings) on OEM 62T 760 sleeves? Looking at what I have I am starting to think that they might not be BB sleeves at all but the stock sleaves bored out.
accbr
addicted
- Location
- Lexington, KY
I have an OEM 62t 701 cylinder I just measured. The bottom of the sleeves are 87.6mm. The part of the sleeve that actually goes in the cylinder casting is 90.02mm. Not sure if that helps you any. I thought 62t sleeves were the same, and some just came bored out to 701 or 760 depending on the ski it was put in.
accbr
addicted
- Location
- Lexington, KY
That's the measurements I got. Good to know about the others.
There's some 62t sleeves on ebay.
http://cgi.ebay.com/ebaymotors/Yama...008QQitemZ180234355588QQrdZ1QQsspagenameZWD1V
http://cgi.ebay.com/ebaymotors/Yama...010QQitemZ200075564746QQrdZ1QQsspagenameZWD1V
You still running the motor I sold ya?
- Location
- San Antonio
are they big bore sleeves or not then? I picked up a set of big bore sleeves starting bore 84.5 max over bore was 86.5 I think, total shipped was 180-190 from canada A local guy quoted 200 to press out the sleeves and bore it out so the new sleeves fit then deck it and bore it (just going to start it at 85mm I think) Think he does alot of the work for the jetski shops here
The ones I had where not big bore sleeves just standard 62T760 sleeves. If I where you I would start at 84.5 to leave as much room for future work as possible, you wont notice the difference on .5mm and will save a bore, plus 86.5mm can run into head sealing problems and expensive pistons. You can remove the sleeves yourself, it could save you a little money, I did it for the first time on this cylinder and it was pretty easy.
- Location
- San Antonio
I thought big bore sleeves outside diameter was alot bigger then the oem 61x sleeves and it needed to be bored in order to fit...
That is correct.
- Location
- San Antonio
I just re read your post, and now I get what you ment, yeah i had thought about pulling them myself but i would rather the guy see how they come out and put the next ones right, I dunno how many he has done like this since most shops tend to resleeve with stock instead of going big...