[Vwdiesel] carbon/soot build up

engle31 at comcast.net engle31 at comcast.net
Tue Aug 8 11:42:29 EDT 2006


No gooey soot, just hard, dried soot. It was an even amount across all cylinders and valve areas. I haven't checked the backside of the valves, that's next on the list. I was just wondering if the soot build up condition was an indicator of bigger issues.

It had a 3 notch headgasket installed. I guess I could measure to ensure the proper headgasket was used last time it was replaced.

I have another block I could maybe use, it had a bad head that was removed some time ago and has been sitting open without a head in place.
decissions, decissions!
-------------- Original message -------------- 
From: LBaird119 at aol.com 

> In a message dated 8/8/2006 8:17:26 AM Pacific Standard Time, 
> engle31 at comcast.net writes: 
> 
> > I pulled the head on my 1.6 na last evening to replace the headgasket and 
> > waterpump before installing the motor in my Caddy. The underside of the head 
> > wasthick with a carbon/soot build up around the valves in the pattern of the 
> > headgasket. Each set of valves per cylinder had this thick build up. I needed 
> > a razor blade to scrape it away. 
> > 
> > Is this normal? The motor has some miles on it, but it did run before it was 
> > pulled from the Rabbit I scrapped. I've seen other heads that one could use 
> > sone cleaner to clean up the underside of the head. I'm just wondering if 
> > this is a sign of something else that should be replaced/repaired. 
> > 
> > Also are the hex headed headbolts, stretch or non-stretch type bolts? 
> > 
> 
> 
> When they're gunky (usually kinda gooey too) it's generally not 
> running right. Bad injectors, low compression, burning oil past 
> rings or valves or bad valve adjustment. COULD be from loafing 
> the engine also. Never heats up enough or runs fast enough to 
> really keep it clear. How are the back sides of the valves? They 
> might be so coked up that they'll need cleaned too. 
> Hex bolts are 11mm non stretch. 
> Loren 
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