GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Topic started by: Hiddenbhp on 02 January 2014, 10:56
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BUGGER!! Like a tit I went out the other night and got myself stuck in a big BIG puddle! She has sucked up a load of water I have got the car running again thank God but there is something not quite right! I emptied out 6ltrs of water oil mix from the sump! Was horrible brown paint like texture oil! I've changed the oil 3 times and nearly all water is gone.
Now for the problem. I did a compression test all are ok apart from No.4 which is running 160psi where as the others are at 220psi. There is also a tapping sound coming from No.4 similar to tappet noise. The car itself still pulls and has ooomf but not as much as before and is lumpy on tickover? The tapping noise increases as the revs increase and on the road anything over 80mph it almost screams at me like it's rattling so much?
Need help please getting kinda scared she is dying?
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Probably a bent rod unfortunately.
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Sorry fellla still a bit of a novice with the engine area what's the worst case scenario? Costs what I need to get it fixed and would I be able to test it at all?
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you may have bent a valve with the amount of water sucked in causing compression to be down on that cylinder.
You would need to do a leak down test to confirm or take it to a garage with a bore camera to have a look.
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That must been one deep puddle.. have you got one of them filters that sit at the bottom of the bumper or something?
+1 on you most likely bent the rod
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get 4 new tappets for cylinder 4, that may cure the problem. :smiley:
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imo if your getting the head off for work get it rebuilt fully looking at around £130 - £160
with the circumstances well worth doing could be some parts that are damage but not noticeable but ready to fail.
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I have a set of standard rods I can sell you for £40 if you need them
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Yh one fecking big puddle! Considering it conked out in the middle I had to push it with water half up my shin! Shizzle where can I get that done or is it something I should be able to do? Let me have a look at what's going on strip it down otherwise I'm gunna be spanking money need to fide what it is but m4rk ill let you know asap!!
Cheers guys awesome response will keep you posted
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check see if your insurance covers you :smiley:
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Instead of looking in the wrong place, get a garage to use a scethascope or however it's spelt on it
Saves mucking around. I did exactly the same on a MK4 SDI.
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I would suspect you have bent a rod tbh.
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Dead.
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http://www.prestigeengine.co.uk/cylinder-heads.html?source=aw-head-rebuild
there are lots of people out there doing rebuilt heads so you can probably get a really good price if you can ring around.
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I can't see it being the head whatsoever.
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Well if water got into the engine it would be in with the fuel in the bore getting through the valves but instead of being burnt the piston would push the water i to the valves which could slightly bend them.
that could cause the low compression on 1 cylinder or more.
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1st things 1st... stop driving it :wink: especially to see if its got any oomph
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Rod bent so slightly shortened by the sounds,no chance of doing valves through hydrolocking.
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another verdict of a bent rod here
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1st things 1st... stop driving it :wink: especially to see if its got any oomph
+1 :whistle:
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right guys drum role!!!
it is a bent rod its sitting about 1/4 inch lower than the rest so good diagnostic by most! now for the painful part of fixing it! what would you do fix it or replace the block?
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right guys drum role!!!
it is a bent rod its sitting about 1/4 inch lower than the rest so good diagnostic by most! now for the painful part of fixing it! what would you do fix it or replace the block?
Remove the bent rod and assess the condition of the oil squirter. When you bend a rod the piston will contact the oil squirter (this is the tapping noise you were hearing), depending on the severity of the bend it can snap the squirter off, the remainder can be a pain to remove. I'd fix the engine you have, new set of rods and it'll be good as new. :smiley: