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piston installation

  • Thread starter Thread starter monte
  • Start date Start date
M

monte

Guest
suggestions required on piston/ring installation on overbored (1166). No champher left, broken ring on attempted installation. What is the usual procedure. Tricks? thank you.
 
Radiator hose clamp of the appropriate diameter.

Oil the rings well, don't tighten the clamp so tight that it won't slide.

Use a cordless drill to turn the screw on the clamp to avoid cramps in your wrist.

Use wood blocks under the two pistons you are working with to prevent the crank from turning.

.
 
block of wood

block of wood

Use wood blocks under the two pistons you are working with to prevent the crank from turning.
Click to expand...

Now you mention that :mad:. That is too easy :o.

The Weisco 1166 rings are a little stiffer than OEM, but I saw Rapid Ray drop a cylinder onto a set of postion in about 15 minutes with bare hands (engine on a bench).
total 2 1/2 hours and the complete top end was bolted torqued and degreed. I was slowing him cleaning parts.

Bill and I took about one tense hour doing it weekend before last on the bike. Used Hose clamps, tight but not too tight. Rocking doesnt help, cylinder straight down.
 
You can re-chamfer the bottom of the cylinders to make it easier on yourself. I do it all the time if the machine shop is busy. A GOOD shop will do it before they give you the block back. If it is an automotive machine shop make sure you tell them to chamfer the BOTTOM of the sleeves as they are used to doing the TOPS on automotive blocks! Ray.
 
rapidray said:
You can re-chamfer the bottom of the cylinders to make it easier on yourself. I do it all the time if the machine shop is busy. A GOOD shop will do it before they give you the block back. If it is an automotive machine shop make sure you tell them to chamfer the BOTTOM of the sleeves as they are used to doing the TOPS on automotive blocks! Ray.
Click to expand...

APE just shipped my engine back to me, fingers crossed they did this.
 
This photo was posted by Renobruce in his beast thread. Very ingenious idea I think; cylinder is suspended using a rope and bungy cord which allows the cylinder to be lowered in a controlled manner. I'm going to try something similar when the time comes on my engine.

100_4639.jpg
 
I use these clamps from Pit Posse. You need to buy two sets of them. Use them on the inner two pistons (with the wood block under the pistons) and then move them to the outer pistons. Unlike automotive clamps, you can get these off the pistons after the rings enter the bottom of the cylinders.

Tracy

http://pitposse.stores.yahoo.net/piriin.html
 
triffecpa said:
I use these clamps from Pit Posse. You need to buy two sets of them. Use them on the inner two pistons (with the wood block under the pistons) and then move them to the outer pistons. Unlike automotive clamps, you can get these off the pistons after the rings enter the bottom of the cylinders.

Tracy

http://pitposse.stores.yahoo.net/piriin.html
Click to expand...

Yikes.. damn I hate to buy $40 worth of tools to use them once every 5 years. Might be the best option though.
 
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