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Discussion Starter · #1 ·
Does anyone know, should the piston come to the very top of the cylinder wall when on TDC? My cylinders to not come all the way to the top,probally stop about a 1/4 of an inch from the top. My compression is low and I am trying to sort out any problems.
 

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that is deffenantly not right, the pistons should come all the way to the top. sounds like someone put the wrong cylinder on that thing, or the wrong rods. if its a 750 that could easily be done because there is alot of stuff that will interchange between them.
 

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Discussion Starter · #3 ·
There 89 cylinders on an 86 bottom end. I have spacers to bring it to the proper height but I guess my initial measurements were wrong. Oh well, simple fix just need time to do it.
Thanks.
 

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Something in the range of 0.040" piston-to-head clearance is fairly safe; if for example you're running a headgasket that mikes 0.035" compressed you'll want the pistons to be about 0.005" below zero deck @ TDC.
 

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Originally posted by suzukiltd:
There 89 cylinders on an 86 bottom end. I have spacers to bring it to the proper height but I guess my initial measurements were wrong. Oh well, simple fix just need time to do it.
Thanks.
<font size="2" face="Verdana, Arial">Check my thinking, but weren't the 89 cylinders the short stroke, and the 86 bottom ends would have the long rods..so your piston should come out too far...right???

But hey, which ever way, best of luck..now you have a new project..cool!!
 

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quote
"There 89 cylinders on an 86 bottom end. I have spacers to bring it to the proper height but I guess my initial measurements were wrong"

"Check my thinking, but weren't the 89 cylinders the short stroke, and the 86 bottom ends would have the long rods..so your piston should come out too far...right??? "

He must have made the spacer too thick..

[ 11-06-2002, 12:11 AM: Message edited by: supercharged ]
 

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Discussion Starter · #7 ·
Yep, Spacers are too thick. I want to get a good digital caliper before I go any further. I'm getting tires of fixing my mistakes
 
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