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Timing belt issues
by
homerj1
on 27 Jul, 2013 12:28
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I've read most of the posts on this issue, but as I was going to drive to Ontario tomorrow - (which is cancelled until my TB problem is fixed), I'd just like some clarification.
Here my timing belt when I checked it this aft:
As you can see the belt is frayed, oily and not aligned to the pulleys.
The tensioner pulley has lips on it - so I'm assuming the misalignment of the belt is causing the fraying.
I'll have to check where the oil leak is - but to clarify the potential locations are: valve cover, intermediate shaft and front crank seal.
Finally, to add icing on the cake, when running the timing belt moves side to side - does this mean the only source of this is the ip pump bushings are gone? (if so, will a n.a 1.6td pump work? or a aaz pump?)
I will be tearing this apart tomorrow, as mr. vodka is now telling me he wants to sooth my jangled and pissed off nerves.
PS I need to be in Montreal at the latest by Fri. aft -so any help would be greatly appreciated!
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#1
by
libbydiesel
on 27 Jul, 2013 12:33
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What's eating into your timing cover?
You need to pull the pump, loosen the two bolts behind the injection pump, loosen the two bolts that hold the two parts of the pump bracket together and push the bracket part behind the pump UP. Tighten it down and install the pump and belt. Rotate by hand a few times to see where it centers on it's tracking. If it is still riding off the pump sprocket, then pull the pump and loosen the bracket mounting bolts AND the ones holding the front bracket part to the pulley end of the block. Push that bracket part DOWN at the pump, tighten everything back up, lather, rinse, repeat.
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#2
by
homerj1
on 27 Jul, 2013 12:43
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What's eating into your timing cover?
I'm not sure what you mean by this? I was assuming the side to side movement of the belt rubbing on the lipped tensioner was causing the tbelt fraying?
I also forgot to add that this mk2 1.6td is installed in my mk1 jetta. I had to install the mk1 pass engine mt plate\ip holder and then cut the timing cover to fit.
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#3
by
libbydiesel
on 27 Jul, 2013 16:09
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In your picture above your finger it looks like the cover is worn through. Maybe it's just a shadow, tho.
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#4
by
srgtlord
on 28 Jul, 2013 05:21
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Here is my bet on the issue .Pump misaligned, timing belt overtightened, pump seal leaking, diesel leaks all over timing belt....
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#5
by
TylerDurden
on 28 Jul, 2013 06:36
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Does the IM pulley have lips too? (some don't)
I would re-examine the side-to-side motion with a new belt. Also I'd check for any hardware or flanges intruding on the belt's path.
While the old belt is off, I'd check each pulley for slop.
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#6
by
libbydiesel
on 28 Jul, 2013 08:20
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If the pump bracket is changed, the tracking needs to be adjusted. He says he changed the bracket. He doesn't say he adjusted the tracking. Nothing to see here.
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#7
by
homerj1
on 28 Jul, 2013 09:37
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If the pump bracket is changed, the tracking needs to be adjusted. He says he changed the bracket. He doesn't say he adjusted the tracking. Nothing to see here.
Just took a break to source some allen keys - it looks like cam seal leaking, and I would suspect ip not tracking correctly and rubbing against the lip of the tensioner pulley - as I did change the pump bracket that incorporates the pass side mk1 engine mt.
But I didn't adjust it -
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#8
by
homerj1
on 28 Jul, 2013 10:34
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So here the update,
Oil is clearly coming from the camshaft seal. (that is an easy fix.)
There is 1/8 inch side to side movement on the ip shaft at the ip pulley. So I suspect that this is part of my wear|tracking problem.
I do have a n.a 1.6 pump and also a couple aaz ip's - although the aaz's been sitting.
So
1. Should I change my ip? ( will a na ip work?)
2. Doing so I will have to also adjust the new ip for tracking.
2.5. New timing belt and tensioner? ( although tensioner spins ok?)
3. The water pump turns doesn't leak - but makes a squeaky\rubber sound when turned. ( not a bearing type of grind) So I suspect replace this also?
what a weekend - I knew I should have bought that Kia.......
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#9
by
theman53
on 28 Jul, 2013 10:39
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In the picture the IP gear looks like it is leaning. It could be an illusion but I bet that is your issue. Could be the misalignment Libby is talking along with some worn bushings in your pump.
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#10
by
libbydiesel
on 28 Jul, 2013 11:22
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If you have that much slop to the IP shaft bushings you should replace the pump.
A NA pump will work but does not give fuel enrichment on-boost, or as some like to say it, does not limit fueling off-boost. This means you need to adjust how you use the pedal or it will smoke off-boost or be gutless on boost.
Once you get a pump and belt on, spin it over several times by hand to see where the belt tracks. If it is not tracking correctly, then adjust it.
Water pump is a judgement call. If you don't have A/C or PS it's pretty easy to change if it leaks in the future.
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#11
by
homerj1
on 28 Jul, 2013 11:33
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Thanks so much for the help. just going to find my na pump.
Also the ip gear lean was from the ip bushing being loose.
Here is the mess:
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#12
by
homerj1
on 28 Jul, 2013 12:33
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The na ip is on the left. What is the lever below the high speed limit screw?
Finally, here is my assistant, although he acts more like a shop foreman, and will work for carrots
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#13
by
libbydiesel
on 28 Jul, 2013 12:39
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That lever is a shutoff lever for pumps fitted to vehicles with automatic transmissions. Why isn't the NA one springing back to idle?
Over-tightening the belt is what wrecks the pump bushings. Don't do that...
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#14
by
homerj1
on 28 Jul, 2013 13:28
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That lever is a shutoff lever for pumps fitted to vehicles with automatic transmissions. Why isn't the NA one springing back to idle?
Over-tightening the belt is what wrecks the pump bushings. Don't do that...
It wasn't springing back, as the bolt that holds the throttle bracket on holding it in place.
I don't think I tighten the tb too much. I used the
The belt should be able to twist no more than 45 degrees without much effort. strategy.
thanks again for your help!