[Vwdiesel] engine rebuild question

mark shepherd mark at shepher.fsnet.co.uk
Tue Jun 15 16:10:19 PDT 2010

You cannot bend a valve, following procedure. Someone made a big cock-up 
'Work experience' kid perhaps?

At the least, grinding the ridges down, deglazing , and installing new rings 
of the same oversize, would improve compression, anywhere from a little to a 
lot, if old rings were worn significantly.
If it ran yesterday then it will run tomorrow better...

Mark (UK)

----- Original Message ----- 
From: "Dave" <vwzoo at yahoo.com>
To: <vwdiesel at vwfans.com>
Sent: Tuesday, June 15, 2010 11:13 PM
Subject: [Vwdiesel] engine rebuild question

> Hi,
> I took my 82 diesel Rabbit to a local VW mechanic to adjust the injection 
> pump timing as I just couldn't get it to run quite right. In the process 
> of attempting to adjust the timing some how they bent one of the valves. 
> He called and told me that it was really for the best as the engine's 
> compression was real poor and it needed new rings. He said he would fix 
> the head as it was his mistake and he would cut me a deal and change the 
> rings for about $300 to $400 dollars. I called him today as it's been a 
> couple of weeks and he told me that cylinder walls have ridges in them and 
> that the engine had been rebuilt before and that he doubted if he changed 
> the rings he couldn't guarantee the engine. So my question is, is he right 
> with the ridges in the cylinder walls is that true, or is it a  thing 
> where oversize rings, new pistons or something could work.
> Thanks
> Dave
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