![]() |
#1 |
![]() Join Date: Jun 2013
Location: PA
Posts: 879
|
![]()
I'm talking with a company about the possibility of replating pistons and liners. Their concern was keeping the liners round for honing. How were the liners originally held for honing? Would a fixture block with a light press fit, that simulated the fit in the block, be sufficient?
|
![]() |
![]() |
![]() |
#2 |
![]() Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,384
|
![]()
It depends on the device you would use to hold it while honing, i.e. 2 jaw vise or 3 jaw chuck. The 3 jaw being best but also the most complex. FOr either style, I would recommend soft jaws that have been bored to the same I.d. as the upper ( largest) diameter of the cylinder sleeve.
For a 2-jaw fixture, the jaws could be cut from a single block of aluminum, say 10"x10"x2", then cut in half. Leave them "floating" to align with the sleeve. For a 3-jaw chuck, make a set of blank soft jaws that will bolt to the chuck. Then chuck up a slug at the rear of the chuck jaws & bore the 3 mounted soft jaws to the correct dia. It's not going to take much clamping force to hold the sleeve for honing and no more than necessary should be used. The sleeves are a "slip-fit" into the block, not even a light "tap-fit". So it's not necessary to clamp the sleeve tightly to simulate installed conditions. The real force on the sleeve comes axially from the clamp force applied when the cylinder heads are installed. Consequently, the sleeves would need to be installed and a torque-plate used to duplicate the installed conditions, then honed. It's going to require a diamond hone to cut nikasil.
__________________
Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
![]() |
![]() |
![]() |
#3 | |
![]() Join Date: Jun 2013
Location: PA
Posts: 879
|
![]() Quote:
|
|
![]() |
![]() |
![]() |
#4 |
![]() Join Date: Jan 2004
Location: Alex VA
Posts: 1,087
|
![]()
I'd stick em the block and use the torque plate to hone them
anyone need some stock liners to experiment with?
__________________
95 390 LPE ZR1 (505 rwhp) LSV = Lingenfelter Super Vette Twin Turbo 2003 Z06 (800 RWHP) |
![]() |
![]() |
![]() |
|
|