VWDiesel.net The IDI, TDI, and mTDI source.
Engine Specific Info and Questions => IDI Engine => Topic started by: hamradio on May 07, 2008, 06:32:54 pm
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Ugh.
Getting my engine all back together, and now the tbelt won't track right. Seems to be in the IP. The belt is riding about 1/16" off of the IP pulley. The bracket is tightly bolted to the engine. The IP is tightly bolted to the bracket. It's tracking about 3/16" away from where it used to (judging by the marks on the pulley).
Could it be, that I sandblasted and repainted the IP/motor mount bracket, and re painted it?
Any suggestions?
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Was it tracking good before the work was done to it?
It may not be mounted in the exact same location. I seem to recall reading that you can slightly move the brackets a bit
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http://www.vwdiesel.net/phpBB/viewtopic.php?t=13496&highlight=56k
read that. The guy had the same problem.
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it was tracking perfectly before I took the bracket off. I guess I'll take it off tonight and try to figure out what's going on.
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Yea I had the same problem. The thread posted above was how I fixed it. I just followed the tech service bulletin that VW posted, checked all brackets and pulleys with a straight edge, and replaced a stripped nut/bolt on the IP bracket. I also painted my IP bracket, I don't think that should be a problem.
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where's the tsb?
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I think the service bulletin was deleted either by the poster or the moderators. I wish i would have printed it.
riddleyo did you save a copy? if so can you send me it via pm.
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ugh.
I think it's the ip bushing. I started tearing it all apart again, and noticed about 1mm of play, maybe slightly less. After turning it over several times the belt stays on, but sticks out about 1/16" over the ip pulley.
Next year, I'm putting a 16v in this car. I've messed around with the diesel enough for a fun car, it doesn't have the dollar-hp factor I'd like, and I have all the wiring and fueling laying around for a full 16v swap. The diesel will probably get thrown into a mk2 or something for a dd; I just hate this stuff that I'm not really sure what's going on. I'd rather have a 16v and mess with wiring than mess with tearing my IP bracket off because it *might* be a reason my timing belt won't track right.
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I think the service bulletin was deleted either by the poster or the moderators. I wish i would have printed it.
We (the mods) don`t regulate content like that. If it`s porn or spam it`s gone, otherwise we leave it.
Don`t give up on the diesel :shock:
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I'll drive it this summer, but if it still isn't thrilling me at the end of the summer, out with it. I'm limited to two cars; if I wasn't, I'd own a 16v scirocco.
I now need to find my gear puller to get the ip pulley off. Then I'll jack the engine up a little, and try to get the bracket off. It frustrates me that I just put all this stuff back on the engine a couple weeks ago, and something isn't right. Ugh. I had visions of having this thing running in the next week or two.
Sorry about all the ***ing.
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I think the service bulletin was deleted either by the poster or the moderators. I wish i would have printed it.
We (the mods) don`t regulate content like that. If it`s porn or spam it`s gone, otherwise we leave it.
Don`t give up on the diesel :shock:
I realized after I said it the the creator of the it deleted it. No offense to any of the moderators by anymeans. I just wasnt sure untill I went OoOo it says he deleted it at the bottom of the post.
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none taken, just figured I should let people know what we do around here :lol:
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I'll drive it this summer, but if it still isn't thrilling me at the end of the summer, out with it. I'm limited to two cars; if I wasn't, I'd own a 16v scirocco.
I now need to find my gear puller to get the ip pulley off. Then I'll jack the engine up a little, and try to get the bracket off. It frustrates me that I just put all this stuff back on the engine a couple weeks ago, and something isn't right. Ugh. I had visions of having this thing running in the next week or two.
Sorry about all the ***ing.
I'll post the TSB in this thread when I get home today. I've used a gear puller on the IP pulley before, it takes forever. Now, I just used a long screw driver to pry against the IP pulley from behind, then tap the screwdriver with a rubber mallet and it pops right off.
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Hmm, I couldn't find the tech bulletin. But all it said was this:
Push the left side of this bracket down, and the right side of the bracket up, and then tighten the bolts down.
(http://i242.photobucket.com/albums/ff271/xedice/TimingBeltSolution3.jpg)
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Will try. So, unbolt it from the motor mount bracket, loosen the 2 bolts, and move it, tighten them, and re bolt it to the mm bracket?
I just pulled the bracket off, rebolted it on, etc, and it still runs about 1/16" off of the pulley. I'll go try the move the bracket trick.
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The pictured bracket has some play in it when loosened. I completely unbolted it from the injector pump bracket, loosened the 2 bolts that hold it on to the block, rotated the bracket a bit, tightened the two bolts, and then reattached it to the injector pump bracket. Pretty much just like you said.
Another thing I did, was when I took off the injector pump bracket, I cleaned the mating surface where it attaches to the side of the block. My thinking was to make sure there were no pieces of crud that could affect how the injection pump bracket seats.
And then when it came time to bolt the injection pump to both brackets, I made sure the mating surfaces were clean, and tightened each bolt in 3-4 steps so the injection pump will straighten itself out between the 4 mounting points.
After all this, my timing belt tracked correctly. But if your injection pump's bearing has play in it, that could be a reason for the tracking problem and these steps won't do much to fix that. Good luck.
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I've got it to an acceptable level, now. It is riding even to the edge of the IP pulley, after the belt went around probably 5-6 times. I'll leave the tbelt cover off, so I can keep an eye on this (I'll barely drive it, anyway). I first rotated the bracket to the right, proceeded to bend the mm bracket a little when I bolted it back down, made it track worse, then took the IP off and rotated it to the left, and it is where it is now. Maybe tomorrow, if I feel like getting another bloody smashed finger, I'll take the ip off, grab onto the mm bracket, and try to bend it back with a vise grip. Ugh.
Thanks, everyone! :)
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I always blue locktite the pump bracket bolts
,... well every since I lost a couple.
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Hmm, I couldn't find the tech bulletin. But all it said was this:
Push the left side of this bracket down, and the right side of the bracket up, and then tighten the bolts down.
(http://i242.photobucket.com/albums/ff271/xedice/TimingBeltSolution3.jpg)
This same thing fixed my tracking problem. Although my bracket didn't have much up/down movement on the belt end. I lifted up on the back and also shifted the bracket all the way torwards the rear of the engine, and it is fixed.
Thanks for giving me the fix! Mine was shredding the belt.
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no problem, glad a newbie could help.
I'm gonna have to try loctite on my bolts. My engine vibrates so much I'm surprised bolts just don't start falling out randomly.