All Things Mk5 > Mk5 General Area
URGENT oil pressure stop engine
doylebros:
In your case once you release the chain you'll be able to move the inlet camshaft on its own to reposition it but it's not the method I would use (head off and tear down cause it would be easier to win the lottery than not have damage).
The cambelt needs checked for missing teeth and "Get help when doing the chain removal"
Item 7
http://parts-catalogs.club/volkswagen/en/?i=cat_vag_models&brand=vw&number=1714&set=1728&ein=2007&f=474&hauptgr=1234567890&hg=1&grf=010915420&bf=10915&hgug=109&ug=09&parent_id=2335700
Will be tight and needs someone to keep the power bar pushed against the bolt so you don't chew the bolt end up.
rich83:
--- Quote from: Pudding on March 14, 2016, 04:49:50 pm ---A compression test will soon show up any bent valves.
You've come this far, so just time it up, replace the tensioner and chain, compression test it then fire the old beast up...... and cross your fingers :smiley:
Too much procrastinating and not enough action. Get on with it man :party:
Just kidding. I feel your anguish and caution, but the only way forward is the above :happy2:
--- End quote ---
Compression can only be checked if the valves/cams are timed correctly.
Pesky jones:
@dazza ok ill check it out to see if it can be removed. There is a chance the chain could be snapped.
@doylebros I understand once the chain is released ill be able to move the inlet cam by itself, but its being able to undo the adjuster bolt first to release the chain, seeing as id need the cam locking tool to be in place to hold the exhaust cam in place. Unless of couse I can remove the inlet cam part of the tool, or the chain is snapped. I will get a nate to hold the tool in place.
@rich83 I think pudding meant compression test once ive timed it all up correctly, and then if im lacking.compression then it will.confirm bent valves
I think its 99% that valves are.damaged like doylebros says, so im in two minds whether to replace the chain and tensioner and put it all back together only for it to have no compression.
Would you say that removing head to look at valves is out of my league, be honest :signLOL:
doylebros:
You'll hit major tooling issues if you do the head yourself - take the head off and give it to a third party to rebuild decoke etc.
When you get the cover off you'll be able to decided how to deal with the chain - I don't see get the cams realigned as a challenge for you,yet loosening item 7 will most likely be an absolute fu*ker
Pesky jones:
Ok thanks mate, so if I took the head off then would I send the head including camshafts, valves etc or would I take the camshafts out and just send the head with valves for repair?
Then once I get it back then fit new tensioner and chain and time it back up?
Ill start looking into the job of removing the head
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