Later version Tbelt tensioner

[eppoh]

Been trying to figure why the timing belt keeps skipping. I got this project with the belt already removed and a box of parts.

 

As I look at the tensioner ( new style), installed it seems that by torquing down the mount bolt it would restrict the tensioner from moving up and down.

 

Is there some kind of spacer that stands the tensioner away from the block, while allowing it to move freely after being torqued? (29 ft/lbs)

 

All I got was the tensioner, bushing, bolt and one washer.

[johnceggleston]

does this help?

 

 

http://opposedforces.com/parts/impreza/us_g10/type_24/engine/camshaft_and_timing_belt/

[WoodsWagon]

The new style tensioner is very sensitive to being re-compressed when you do a T-belt job. If it's done wrong, which is any way other than in a verticle press with some pathetically slow rate of compression, the seals blow out of it. It still has the spring tension, so it looks like it's working, but it can't hold that tension. Easiest way to check is to turn the crank with the belt installed. Turn it back and forth and see if the tensioner moves up and down. It shouldn't. If it can move pretty easy it's blown.

 

The old style was much more forgiving, you could use a vice to compress it and it worked fine. If you get the bracket that bolts to the block, you can put the old style piston and separate pully on as a retrofit.

[Gloyale]

Been trying to figure why the timing belt keeps skipping. I got this project with the belt already removed and a box of parts.

 

As I look at the tensioner ( new style), installed it seems that by torquing down the mount bolt it would restrict the tensioner from moving up and down.

 

Is there some kind of spacer that stands the tensioner away from the block, while allowing it to move freely after being torqued? (29 ft/lbs)

 

All I got was the tensioner, bushing, bolt and one washer.

 

Should be a sleeve in the pivot that the bolt goes through. Sleeve is slightly longer than the hole in the tensioner. In theory, the sleeve takes all the compression of the bolt.

 

Check it though, I've seen a few Aftermarket replacements where the sleeve was not long enough, and I had to find a perfect fit washer to go behind or else it would have been just like you described.

[eppoh]

thanks all. I was very careful when compressing the tensioner. Took my time- like a 1/8 twist of the clamp every 10 minutes while doing other things,.

 

Turned out that the rear washer was missing. Got it back on with that and the tensioner moves like it is supposed to,

 

No matter though. I got no compression in any cylinder.

 

The previous owner said his son told him he was doing 40 when the belt was knocked off. He musta been doing 40 in first gear!

 

Gonna pull the heads later.