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Took my head off, a couple questions now
by
hamradio
on 11 Dec, 2007 19:58
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Hi,
I removed my head tonight on my 1.6na, due to a kind of blown head gasket.
First question-
Antifreeze coming out was kind of a nasty dark greenish brown. Could the blown hg have had a part in this, or is it just really crappy old antifreeze?
When I pulled the head off, a little road grime dirt kind of stuff fell in the cylinders. Any tips of cleaning this out?
Why did some pistons have varying levels of soot on them? One piston (#2) was relatively clean, and I could see the machining marks a little, but #1 was pretty sooty and dirty.
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#1
by
burn_your_money
on 11 Dec, 2007 20:09
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The cylinders that are clean possibly had coolant leaking into them and they have been steam cleaned. It could be a sign of bad injectors, bad rings (low compression, poor burn) and a slew of other things
Compressed air will get the grime out of there
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#2
by
MaxHedrm
on 11 Dec, 2007 20:35
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Was the antifreeze kind of greasy too? Or just discolored? Mine was really nasty & full of emulsified diesel fuel & oil. Sort of a nasty black sludge.
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#3
by
vanagonturbo
on 11 Dec, 2007 20:58
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what they said. get your injectors pop tested while you have the head off. its a good precaution. slimy coolant is usually the result of a blown headgasket.
OT, you cant have a username of Hamradio and not post your callsign in the sig or something. its just not right. KB7MRM here.
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#4
by
MaxHedrm
on 11 Dec, 2007 22:25
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<== KB5UZB
Thinking I might finally get a radio for the Jetta. The TT would look odd with antennas. :wink:
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#5
by
vanagonturbo
on 11 Dec, 2007 23:42
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yeah, that could be odd. but then again, we are into Diesels
My Vanagon looks better with antennas
Sorry about the thread jacking. Its the Op's fault for not posting a callsign
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#6
by
burn_your_money
on 12 Dec, 2007 04:55
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If the coolant/fuel/oil antifreeze sat in the engine for a long time you may want to do the bearings while you are in there. There is a good chance they are etched, especially if the car was driven under these conditions
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#7
by
hamradio
on 12 Dec, 2007 05:00
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The main bearings? I dunno, I guess. But, hell, as long as I was doing those, I might as well re ring it.
Also,
I'm KC0KBH.
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#8
by
hamradio
on 12 Dec, 2007 05:02
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Also, how much does it cost to get the injectors pop tested? A local shop was quoting me somewhere around like $50/injector to test them. Brand new injectors are $50, from what I am seeing.
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#9
by
njj_502
on 12 Dec, 2007 05:41
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The fuel shop at my local CAT dealer quoted me $40 to pop test all 4 injectors. $40 is cheap insurance to know if your units are up to snuff. I've seen injectors on autohausaz.com for something like $34 each but not sure who is remanufacturing them (Bosch or xyz injection shop).