chain tensioner question w/pic
 

I am doing top end rebuild for head studs. 48k miles on motor. during tear down I found this. left side looked normal. right side looks like this. motor ran fine when pulled. chain seems tight what kind of issue am I looking at.

going to upgrade to Carrera tensioner.

thanks for ant input....carl


http://forums.pelicanparts.com/uploa...1395534435.jpg
http://forums.pelicanparts.com/uploa...1395534456.jpg
http://forums.pelicanparts.com/uploa...1395534472.jpg

If was running fine and chain tight somebody cut off one link.

will I know more once I get it all apart? can you measure the chain ?

It something wrong normaly with a tensioner like this one you have bent valve or poor running.Check the chain if there master link.But i dont realy know how it was running good with this tensioner.

Any update.

when I say runs good I mean I was getting a little back fire from the exhaust because of broke head studs.

how can it be a bent valve. you have two gears and a chain? can you have a bad tensioner and no motor damage?

this weekend I will pull more of the motor apart. I hope I will know more.

i can't imagine that both sides of the chain are still tight.

Carrera tensioners are not an upgrade.

You have the best setup IMHO....and the tensioners are serviceable....Send them out for a rebuild and install collars for insurance. I do the service as well as Supertec Performance.

update....I took apart the side with the bad tensioner. cam, rocker arms, heads and pistons all look good. the head nuts were not all that tight.

I started this tear down for head studs. all studs are ok but had two nuts back off. I still plan to replace the studs. I am going to stop at the short block. I have Aulsil pistons so I plan to pull p&c togeather.

I guess I got really lucky.

and the chain is ok and right size.

The back fire was probably from timing due to bad tensioner.How was your head gasklet.