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It's a trap...
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3.0L CIS deck height with pics
Hi all, is this the proper location to perform a deck height measurement on my stock, unground case and cylinders? If so then I do NOT need to do the solder measurement...correct??
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Run like the wind, straining the limits of machine and man.... 2006 Atlas Gray Carrera 4, '81 911SC Black on Tan (SOLD), 2006 Acura RSX Type S, '13 Dodge Durango (wifeys). |
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06-18-2014, 06:29 PM
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Registered
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Deck height measurement.......
The deck height measurement for CIS piston/s is taken from the perimeter of the piston and the cylinder lip. Ignore the dome of the piston and visualize it as a flat top piston. At TDC, the perimeter area (small flat area) is below the lip of the cylinder wall and that's the deck height. Use a depth gauge precision tool to accurately get the difference at TDC.
Tony |
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06-18-2014, 06:51 PM
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It's a trap...
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Thank you. How much force needs to be on the cylinder? Pushing by hand or some fastener force with spacers under the barrel nuts?
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Run like the wind, straining the limits of machine and man.... 2006 Atlas Gray Carrera 4, '81 911SC Black on Tan (SOLD), 2006 Acura RSX Type S, '13 Dodge Durango (wifeys). |
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06-18-2014, 07:02 PM
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Registered
Join Date: May 2003
Posts: 3,346
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You should snug down the cylinder nuts but they don't need to be tight. Just make sure the cylinder is fully seated. You should measure the deck height at the "3-9" position. You indicate you are using the "6-12" positions. The piston rocks in the bore about the wrist pin. There is no rocking in the 3-9 axis. You will find it difficult to get a good reading in the axis that rocks.
-Andy
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72 Carrera RS replica, Spec 911 racer |
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06-18-2014, 07:41 PM
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It's a trap...
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OK. Thanks. I wouldn't have done my trains refresh, much less this motor if it wasn't for all the help I get on this board. Yous guys are awesome.
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Run like the wind, straining the limits of machine and man.... 2006 Atlas Gray Carrera 4, '81 911SC Black on Tan (SOLD), 2006 Acura RSX Type S, '13 Dodge Durango (wifeys). |
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06-19-2014, 03:34 AM
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Speed Buggy
