View single post by Sylva
 Posted: 11-16-2006 12:04 am
PM Quote Reply Full Topic
Sylva

 

Joined: 09-14-2006
Location: Malaysia
Posts: 54
Status: 
Offline
 I measured a few things on Number 4 cyl last night, I need to wait for the weekend for the others.as they are damaged and I need better light.

Piston stands out of the head at TDC by .050 inch.

Piston Clearance in the bore, is 0.030 Inch, Using the +30 CE Piston. This appears to me to be very large, Lotus spec on Std Pistons in Cast Iron Linner is 0.005 inch. I'dd appreciate advice and experience on this.

So if the piston 'rocks' in the bore it would move the piston out aboot a further 0.015, (3.75 Bore and say a 2 inch piston skirt. less with the Piston expansion)

Plus rod stretch of 0.020, so stand out could be .050+.015 +.020, or .085. Which is 2.1 mm, Need to get the exact thickness of the head gasket, over the weekend.

But looks like the Piston clearance could be my problem.

Kelvin