Cam change info needed. - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

John_xr6 · 08-04-2004, 06:08

will be hopefully changing the Cam on my ED to an EF unit and just want to know if i need to release the chain tensioner or not. anything else i should look out for too? any info would be great. Thanks.

psycho chicken · 08-04-2004, 06:10

Easy as piss.

Rocker cover off, rocker gear off, cable tie the cam gear to the timing chain, undo the nut that holds it to the cam, swap over, put everything back together without the cable ties.

John_xr6 · 08-04-2004, 06:15

Quote:

Originally Posted by psycho chicken

Easy as piss.

Rocker cover off, rocker gear off, cable tie the cam gear to the timing chain, undo the nut that holds it to the cam, swap over, put everything back together without the cable ties.

yeah i thought so, was reading in the gregorys manual that you had to take the chain tensioner out but was unsure on WTF for.

OED666 · 08-04-2004, 06:15

i remember when Rollin changed my cam he did losen the cam tensioner nut thing... but as psycho chicken said, Easy as piss.

Soxx · 08-04-2004, 07:07

Yes, you do need to release the chain tensioner.

Rick.

psycho chicken · 08-04-2004, 07:28

Hmmmmm I must of missed something when we did mine.

Voxace · 08-04-2004, 08:05

Why do you have to? Can you elaborate?
Didn't do it when I put a cam in mine...

Soxx · 08-04-2004, 16:02

When you take load off the chain guide by removing the cam, the tensioner will extend to it's outermost position by spring pressure. When re-installing the new cam, the tensioner won't push back in because it's designed not to.

Basically you will end up with far too much tension on the chain and end up wearing out the guides, and maybe even the block where the auxiliary shaft sits.

When re-installing the tensioner, it must be installed back into it's re-tracted position. When the cam is in, the tensioner must be relaxed by spinning it and allowing the spring pressure to force itself against the guide/chain giving just the right amount of tension.

Rick.

TIKFD6 · 08-05-2004, 03:43

Definately agree Rick, i have done it both ways, and its heaps easier to do it by releasing the tensioner.
Definately worth the little extra time.

John_xr6 · 08-05-2004, 05:08

ok, so to release the tensioner...how do i do that? im assuming they are self tensioning once clicked back in judging by your post soxx. that would explain why we put sleeves in the auxilary shaft hole at work when they are worn out though.