I talked with a mechanic who rebuilds jaguars. He knew my problem quite well regarding the nikasil wear. He tells me he has repaired five engines with a special cleaner. He puts this stuff in the engine - compared it to an IV, and rus the engine. He tells me that this will clear the coagulated gunk off the piston rings and free them up and brings compression back to spec. Cost about $300.00. He readliy admits he has no idea how long this fix will last.

Has anyone else heard of this or tried it?

 

Boosted5cyl,

Nikasil is a kind of ceramic material (Ni+C+Al, I think), which is very hard (and other good properties). This is formed on the inner wall of the cylinders. One problem is that nikasil is prone to corrosion due to sulfar in gasoline. Unless you have been giving low sulfar fuel, the cylinders tend to fail at some point. It is near impossible to bring this corroded nikasil wall into original specification, so practical repair would be resleeving with iron.

That is what I have heard or read.

 

93xj6,

That's also very true, too!

 

Boosted5cyl,
Nikasil is a kind of ceramic material (Ni+C+Al, I think), which is very hard (and other good properties). This is formed on the inner wall of the cylinders. One problem is that nikasil is prone to corrosion due to sulfar in gasoline. Unless you have been giving low sulfar fuel, the cylinders tend to fail at some point. It is near impossible to bring this corroded nikasil wall into original specification, so practical repair would be resleeving with iron.
That is what I have heard or read.[/quote]

All,
This what a got for the Corvette ZR1 forum about the Nikasil Coating. The coating in also in the Corvette ZR1 LT5 engine.Good Info on Nikasil http://forums.corvetteforum.com/show....php?t=1757887
Tomcat 74 [sm=americanasmiley.gif]