Rebuilding The LT5 Tensioner
 

We all know our belt tensioner's are rarer then a supermodel at a buffet. You can't find a new or old one at almost any cost so I started looking into rebuilding mine. I wanted to make sure to use basic tools with it's rebuilt so the average person could do it themselves at home. Our tensioners are made by Dayco. So I called them and got in contact with a wonderful guy named Randy. He verified my thoughts that the L98 tensioners have the same internals as our tensioner. So I ordered a new Dayco tensioner from rock auto with a discount coupon and came out to a total of $38 and it came with the pulley with the belt guides so that was handy because all you can bye right now is the smooth pulley. And I disassembled it first. The disassembly of the new unit with plastic cover is fairly straightforward the black plastic cover on the new one just pyres off with a screwdriver carefully and making sure to distribute force from one side to the other. As a safety precaution I made sure sure to wire the unit together because I wasn't sure what would happen once the plastic cover was removed I was pleased to find that it wasn't as difficult as I thought it would be and really the wire wasn't really necessary but it's a good precautionary measure. Once the plastic cover and the dampener pad and dampener spring were removed and set aside I used a chain wrench(or a strap wrench will work or something of the sort) to take the tension off the stop. Once the pressure was off I could use the wooded handle of my hammer and gently tap the spring assembly back so the stop would not make contact anymore and I could unload the spring. Once the spring was unloaded all you have to do is remove the spring from the housing I did this by tapping the exposed part of the spring with a hammer and on the other side of the housing is a small hole on the back that I put a screwdriver through to tap the spring. Disassembling the old unit is only slightly different the cover which is plastic and it is aluminum on the old one and a litte tighter so I used a puller. I use the small quarter inch socket just a little smaller then the Center pin to press against. If you're going to use a two jaw puller make sure the jaws fit in the grooves you should be able to rent one from an auto parts store or buy one at Harbor freight and grind the jaws to fit in the groves. The rest is just replacing the old or components with the new ones. One note needs to be made though when you install the new spring use a large pair of pliers or something of the sort to compress the spring slightly to get it into the housing doesn't take much and I held the spring vertically to keep the Teflon tape from falling out.

Here is a link to all the photos of the process
https://www.facebook.com/media/set/?...1&l=bb4f436b0a

David Hetrick

Re: Rebuilding The LT5 Tensioner
 

Nice project well done :cheers:


Any thoughts of doing a run of these? Im sure they would sell quick. I would be in for a spare

Re: Rebuilding The LT5 Tensioner
 

I don't have any used ones to rebuild, and you cant find them. BTW here is the link to the cheapest Dayco L98 tensioner I could find.

http://autoplicity.com/products/2558...Fe3m7AodFTcA5A

Dave

Re: Rebuilding The LT5 Tensioner
 

I have a used one I need to rebuild...

Re: Rebuilding The LT5 Tensioner
 

Im thinking the same I think I have used one as well

Re: Rebuilding The LT5 Tensioner
 

Ill tell you what if one of you guys buy the new Dayco and mail me it and you old one I will rebuild it and mail it back for the one that is on you car now. I have a good friend in Japan with a Z that's been down cause of catastrophic failure of his ZR1 tensioner. That way I can rebuild the traded one you give me so I can rebuild it and gift it to him. A perfect brotherhood circle.

Dave

Re: Rebuilding The LT5 Tensioner
 

This is the other option.

http://zr1specialist.com/HAT%20Web/p...0tensioner.htm

Re: Rebuilding The LT5 Tensioner
 

Gonna have to try this. I have one with 30k on it that sometimes sticks a little, but isn't completely worn out. I was able to buy one of the last new ones for $199 and was happy to get it at the time.

Belt Tensioner Billet Aluminum Pulley
 

Billet Aluminum Ultra Light Belt Tensioner Pulley

This Belt Tensioner Pulley will fit the ZR-1 (LT5) as well as a standard C4 with L98 engine.

Ebay Billet Aluminum Belt Tensioner Pulley

http://i287.photobucket.com/albums/l...inumPulley.jpg

See item #8 LT5 Added Systems

Re: Rebuilding The LT5 Tensioner
 

Wow!!!! $57 bucks. But it will work.