While doing a compression test on my s2 avant's engine before it gets its head off, I got 2 cylinders into the test when the starter motor started to turn more slowly and then eventually stop, all this was with the plugs out. The solenoid is getting power on start key turn and battery is good, is this how starter motors fail?
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Can a starter overheat or is that just a myth?
Possibly somewhat useful:
Don't be stuck for a starter btw
Last edited by s2_wot; 4 December 2012, 21:30.Shane -
I dont know, I grew up with the notion that you could overheat a starter motor.. anyway I found out what happened, the solenoid was sticking, so I took out the starter motor (I say that as if it was something simple to do.. ha!), gave it some percussive maintenance and starter motor started popping freely. Put it back and wouldnt you know it my ignition switch failed... doh. That will be replaced in due course, as the dash is coming out too..
So as I was just doing a compression test I just jumped the solenoid and got my testing done. Anyway 12bar (approx 170psi) across the board, but plugs are black all 5 equally, so either the valve seals are worn or the turbo seal is worn. If the turbo shows obvious oil issues then I may just keep the head on. I have a hunch that not all valve seals would go at the same time so I am guessing turbo.Comment
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my experience of all VAG engines is that the plugs come out looking a little black (dry) never looked at s2 plugs yet though.Comment
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You can still do all the valve stem seals without taking the head off.
I have done it several timesComment
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Is the car smoking an smelling bad as mine was hence the head off and the stem seals and stuff all got done.Comment
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Only under acceleration, blue puffs of smoke.
Thanks Tonks, but I think thats above my skill level lolComment
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