Post by
Dori Dori »
https://forums.nicoclub.com/dori-dori-u2872.html
Thu Apr 27, 2006 4:13 am
You blew the HG right? Bring your head to a machine shop to get planed to make sure it's not warped. Have them inspect the rest of the head. When I blew mine I spent the money on new guides, a 3-angle valve job (go with a 5-angle if you can), new seals, and a thorough cleaning. The entire cost was around $230 iirc.
To clean the block surface, take a razorblade and scrape off the old gasket. There's more than one method to prepare the mating surfaces...some people use sand paper but I used a scotchbrite pad. Once they looked good I sprayed some copper spray on both sides of the gasket and installed. Mine was a cometic HG btw. Been working well for about a year now.