ZR-1 Net Registry Forums - View Single Post

A26B · 03-15-2012

Loctite 242, 243 & 262 is only rated to 300F. Heat is used as an aid to dissassembly. Vibration is the cause of fastener loosening and only occurs under running conditions. I haven't checked the actual, operating temperature of the cyl head at the exhaust port, but I would expect temperatures in excess of 300F.

Considering the difficulty of accessing header bolts and the small tools used, I would not recommend the use of Loctite on header/manifold bolts. It could make disassembly problematic.

03-15-2012	#13
A26B Join Date: Dec 2003 Location: Arcadia, OK Posts: 3,397	Re: Drain plug torque Loctite 242, 243 & 262 is only rated to 300F. Heat is used as an aid to dissassembly. Vibration is the cause of fastener loosening and only occurs under running conditions. I haven't checked the actual, operating temperature of the cyl head at the exhaust port, but I would expect temperatures in excess of 300F. Considering the difficulty of accessing header bolts and the small tools used, I would not recommend the use of Loctite on header/manifold bolts. It could make disassembly problematic. __________________ 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. Last edited by A26B; 03-15-2012 at 10:40 AM.*