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Model specific boards => Golf mk3 => Topic started by: thai-wronghorse on 25 August 2012, 01:25
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Over the course of the past week my car seems to have developed an annoying resonance from under the bonnet. At first i thought it was the heatshield around the front pipe but after closer inspection and a fresh jubilee clip around it not much changed in sound. Today it appeared to be louder so i thought i get the local exhaust monkeys to check it out on the ramp but they weren't convinced it was the front pipe after all and when they popped the bonnet it seemed to be more prominent from the offside of the engine bay, top end more so. I was advised to see if it was any of the auxiliary belts or pulleys by running it without them fitted momentarily, which I did once home which made absolutely no difference which has now left me stumped tbh as i was convinced it was the front pipe. It was suggested to me that it might be the cambelt or tensioner but i personally changed both of these about a year ago so i really wouldn't have thought it was them.
Would a cracked manifold make a resonating / whirring noise? :undecided:
I tried to capture the noise on my phone but it's made my engine sound like a motorcross bike for some odd reason.
http://imageshack.us/photo/my-images/23/2sflvqkitcqudcxupmbgmc.mp4/
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i get that when downshifting into first like a whirring but then again it could be anything knowing my car it likes to keep me guessing
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f**k!
That's no Cambelt tensioner
Have you started it with cam belt cover off?
Sounds internal to me. I would take the rocker off and inspect
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The cambelt cover was the first thing I took off and I'm inclined to agree that I may well be internal now. :sick:
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Could be warn out tappet or something valve related.
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Could be mate, Its due for an oil change anyway so I'm going to flush it out and refill and see what I'm left with.
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Mines only an 8v but has made a similar sound in the past. I put some good quality oil in it with cleaners etc in it and the noise stopped. I suspect it was a follower not functioning correctly due to it being caked with years of crud. The cheaper oil not having the detergents in it was just adding to the problem.
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How old is the oil and how many miles has it done?
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Sounds like $hit,bit of top end rattle there mate ,worn followers and cam to me,do the cam lobes look scratched up and discoloured?
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That does not sound healthy, sounds top end related
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Well what should have been a simple enough task turned into an absolute ballache, on attempting to change the oil and filter the sump plug decided otherwise and sheared off which now means a new sump pan is required before I can progress with anything else. :angry:
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They don't need to be that tight :lipsrsealed:
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I know, f**k knows why it was so tight as i had it out last year and i remember only pinching it up although it was never in good condition from when i got it from the previous owner so it's my own fault for not replacing it last time. I even tried whacking an Irwin bolt extractor on the remaining stub but all that did was fracture the alloy pan around it - meh! :undecided:
That aside, I'm starting to think it might be the cam chains - How big a job is it to replace these?
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That aside, I'm starting to think it might be the cam chains - How big a job is it to replace these?
The cam chain is easy enough to replace.
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I dont think you should tackle cam chain if you cant undo a sump plug :lipsrsealed:
:grin: :grin:
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:grin: :grin: :grin: :grin:
Pretend the cam is worn and you need to upgrade
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Cheeky f**k*r! :grin:
Actually now I've thought about it more i doubt the main noisy culprit is the cam chain as they're on the passenger side of the head and the noise is more prominent from the cambelt / driver end...hmm, maybe i had a sh!te tensioner last time then? :undecided:
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:grin: :grin: :grin: :grin:
Pretend the cam is worn and you need to upgrade
In an ideal world maybe but funds are seriously tight at the moment and im more concerned at stopping the b@stard from going bang right now.
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http://www.ebay.co.uk/itm/AMETECH-CAR-ENGINE-RESTORER-Oil-Treatment-Additive-400ml-can-for-2-litre-engine-/261069133979?pt=UK_Vehicle_Oils_Lubricants_Fluids&hash=item3cc8eed89b
:grin:
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I think the only thing that oil treatment doesn't supposedly do is make the friggin tea!
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im being serious ,ive used it before and it does make tea ,well boils the water at least :grin:
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I think the only thing that oil treatment doesn't supposedly do is make the friggin tea!
You'd be better off putting tea in the engine.
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Well after visiting 3 breaker yards and scouring the tinterweb I'm still hunting a replacement sump pan. I thought I'd ring the dealers today for a laugh... £176!!!!! :shocked:
Does anyone know why the ABF has an alloy sump pan instead of a much cheaper steel one that is used on the mk3 8v and all the mk1's and mk2's? Is it a heat dissipating thing?
This is the only one I've seen that might be of use on eBay which is a baffled steel one, unless the standard steel ones fit as well?
http://www.ebay.co.uk/itm/VW-GOLF-GTI-1-8-2-0-G60-8V-16V-ABF-2E-KR-9A-PB-BAFFLED-SUMP-/120962485048?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1c29ed0b38
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How bad is the crack?
If its ally I'd be tempted to to get it welded or use chemical metal to seal the crack. Drill the old plug out then run a tap down it to clean the thread. Perhaps a nutsert if required. The welding might cost you £20?
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Yeah I know it could be repaired, especially as I'm a welder and fabricator by trade. The problem is I'm not geared up for alu work and I can't have the car off the road really whilst someone else sorts it out.
A straight swap replacement would make life so much easier in this instance. Now I've read more into it would seem I can fit an 8v sump pan on there. I'll see if I can find a cheap one and beef it up with some 5mm plate and stick some baffles inside it for good measure.
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Progress!..albeit a month later as i've barely touched it since and have just been using my work van instead as im been too busy, skint and / or it's been raining so the opportunity to get out fettling hasn't arisen.
I ended up taking it too my workshop today where i managed to sand the remains of the sump plug off and then drill it out to allow the drainage of the sh!tty old engine oil before whipping the sump pan off so that i could drill it out properly, re-tap a fresh sump plug in and give it a bloody good scrub up!
New oil and filter followed which has smoothed things out a touch but didn't remove that horrible noise so further investigations ensued on all the moving parts on the offside of the engine.
With both belts removed completely I eventually pin-pointed it to the water pump bearings which is odd considering i replaced the pump about 18 months ago when I did the cambelt and major service. Must have been a cheap sh!t component but this aside at least i can rest assured my head isn't tw@tted now. :smiley:
Something else i did pick up on whilst beneath the car whilst it was running was the faint and irregular rattle coming from the nearside end of the gearbox, behind the square end cover plate Im guessing? Any ideas?
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Wouldn't that be your cam chain?
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Camchain inside my gearbox? :huh: