Help! Engine Trouble

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flip2jetta
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Help! Engine Trouble

Postby flip2jetta » Wed Aug 15, 2007 2:10 pm

Clutch slipped and the car jumped forward really hard, all of a sudden the car is squeaking, well it's more of a deep sounding squeak. Popped the hood open to find that the timming belt cover came off from the engine jerking so hard.

If anyone might have an idea of what may have happened to my car I'm all ears. I was pulling into a driveway when it happened so I wasn't going very fast. The best description I can give is the car jumped forward voilently ,similar to when you leave the car in gear and try to start it without holding the clutch down, then it began making the noise described earlier. Also, the edge of the timming belt looks a little tattered, dunno if this is normal wear or a sign that it started rubbing on something after said incident.

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Postby jduarte » Wed Aug 15, 2007 3:20 pm

Could have had a pulley seize? Paging Dr. Sureguy once again...

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Postby flip2jetta » Wed Aug 15, 2007 3:38 pm

GTI - I didn't get any lights from the cluster and no cel. The noise only started happening after the incident and hasn't stopped, it actually quiets down a little when the engine revs but still can be heard. The noise if pretty constant.

jduarte - the sound is clearly comming from the timming belt area, it could be a seized pully.

The tow truck driver also mentioned to check out the motor mounts since the car jerked forward pretty hard, they could have broken and causing something to rub.

Keep the ideas comming guys, I'll probably start tearing into it tonight, if anyone wants to help I'll gladly take it. I'll try and get a sound clip when I get home, doesn't sound nice at all.

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Postby my02vr6 » Wed Aug 15, 2007 3:52 pm

moved to tech area :thumb:
02.5 GTI 24v(O:o===o:O)The Elite 24v VR6 Club: Member #219 90.5 GLI 16v[__]==\X/==[__]

curvedinfinity wrote:Well, if driving a car is sex, and seeing pictures of a car is porn, then touching a car you can't have is like a lap dance.

Lap dances ain't bad

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Postby jduarte » Wed Aug 15, 2007 3:55 pm

my02vr6 wrote:moved to tech area :thumb:



EDITED: Damn! I can't type.
Whatever you do, I wouldn't try starting it anymore. Don't worry about the sound clips, your visual diagnoses is far more important at this point imho :thumb:

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Postby my02vr6 » Wed Aug 15, 2007 3:58 pm

jduarte wrote:And removed my newb comment :cry:

Whatever you do, I would try starting is anymore.

still :confused:
02.5 GTI 24v(O:o===o:O)The Elite 24v VR6 Club: Member #219 90.5 GLI 16v[__]==\X/==[__]



curvedinfinity wrote:Well, if driving a car is sex, and seeing pictures of a car is porn, then touching a car you can't have is like a lap dance.

Lap dances ain't bad

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Postby flip2jetta » Wed Aug 15, 2007 4:07 pm

my02vr6 wrote:moved to tech area :thumb:


DOH! Didn't even notice, I was just in a rush to post. Thanks man!!! :thumb:

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Postby flip2jetta » Wed Aug 15, 2007 4:09 pm

jduarte wrote:EDITED: Damn! I can't type.
Whatever you do, I wouldn't try starting it anymore. Don't worry about the sound clips, your visual diagnoses is far more important at this point imho :thumb:


I started it like 3 or 4 times already :rofl: that can't be good

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Postby flip2jetta » Wed Aug 15, 2007 11:23 pm

Sureguy!!!! Glad to see you checked in! And everyone thanks for the responses. Ok I'm pretty sure I've found the problem and I have pictures so here goes...

This is the problem area, the area circled is the passenger side motor mount (not looking at my engine, just a photo from vortex)
Image

The noise is originating from a pulley, I believe it's the tensioner pulley, rubbing and notching the motor mount...you should see the notch in the photo, the belt was catching on it also
Image

now the reason the pulley is rubbing, or in my case eating the motor mount is because the mounting point behind the block that the motor mount bolts too BROKE IN HALF! WTF!!! See the exposed threading where the bolt is supposed to go thru, it's completely open! Directly below the black metal plate, the large silver metal block on the bottom of the pic is the motor mount
Image

The mounting point I'm talking about is facing the firewall under the valve cover, you can't see it here just trying to give an idea...
Image

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Postby flip2jetta » Wed Aug 15, 2007 11:26 pm

So am I screwed??? Is this a direct part of the block that's broken? I'm freaking out because as far as I know the engine may have to be pulled to fix this and I'm BROKE. How troublesome is this fix looking??? :cry:

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Postby flip2jetta » Thu Aug 16, 2007 10:28 am

Sureguy wrote:I've seen that happen before. I've saved a couple by epoxying the bolt in place It's ghetto but works. Otherwise your looking at another block. Or you can find someone that does cast iron welding and weld in a stud in place of the bolt and secure the bracket with a nut on that side. I'm assuming your talking about the ear that is on the back of the block.


Yea I think you got it, I was hopping that wouldn't be the case but I think it is. What product do you recommend to epoxy the bolt in? Any special procedures???

Also how many mounting points are holding the motor mount to the block??? Is it three??? Because I can only find one fixed point, I can take my hand and rock the mount back and fourth so I may be missing a second mounting point.

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Postby flip2jetta » Thu Aug 16, 2007 12:43 pm

Sureguy wrote:Did someone recently do your timing belt? There are three. Usually what happens is someone either leaves the middle bolt out or loose and puts too much stress on the unsupported ear of the block. I wouldn't start it anymore. I can order up some new bolts for you. I don't live very far from you. You are going to need a timing belt and if it hasn't been done yet.... water pump whilst you are in there. Let me know.


Just recently had it done at Bugformance in February or March. The middle bolt isn't there so it either fell out, wasn't put back, or I never had one ((not placing blame on Bugformance just so it's clear)) in any case the mount is holding on with one bolt. I think I'll leave the timing belt alone since it's so new, I will be keeping an eye on it though, but I would like to order new bolts through you James, can you pm me your number so I can talk to you about this over the phone or let me know if I should just call the shop number in your sig. I need the three stretch bolts for the mount to the block, the four connecting the mount to the body and the two bolts for the metal plate that the power steering reservior sits on top of, let me know pricing info in the pm. THANK YOU THANK YOU THANK YOU EVERYONE

Needless to say I'm pretty bummed about the situation but I appreciate everyones help and advice.

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Update

Postby flip2jetta » Wed Aug 22, 2007 1:35 am

Well I just changed my timing belt for the first time, after having just done it seven months ago :thumbsdow The teardown was easy but putting crap back together, specifically the timing belt and tentioner SUCKED! I did learn a lot.

The good news, the tentioner assembly wasn't damaged other than a small bend on the lip of the roller that ate the motor mount. Started her up and she sounds just fine. As for the messed up ear on the block it'll have to wait until later to be fixed properly, however I did replace the missing bolt from the mount to engine which is in a much better place to hold the weight of the engine. All in all it was about one entire day worth of work broken up into two days. Thank god for bentlys, diys, and bolt extractors :thumb:

flip2jetta
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Postby flip2jetta » Wed Aug 22, 2007 2:25 pm

Sureguy wrote:Cool. You do learn alot doing those.


Thanks again for the advice man! I'm still rolling around with only two motor mount bolts instead of three so I may be contacting you in the future about getting that third bolt back on, I found the other half of the ear that broke off the block!


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