[Vwdiesel] Injection timing --(Hillbilly tuning 1980 to 86 Bosch )

[James Hansen]

I gotta differ here a bit and rain on some parade.  It would be really nice
to tell everyone that you don't need all the fancy schmancy tools to
properly time your diesel and be correct.  The good news is, yes, with
enough experience, you can time it by ear. Without enough experience
however, on a long hill climb, you can also have the timing advanced enough
to generate enough heat to kill it. Dead. Bright glowing cherry red turbo
spewing chunks of molten piston and exhaust valves red.

It is common practice to bump the timing up the thickness of a centerpunch
mark if the pump is to spec on a tired old engine and it still doesn't run
well/has no life. This is at the local Bosch shop, not just your local
farmer's place, (like mine for instance.)  Now that's when you start from a
know safe specification.  However, to advocate all start timing by feel and
sound, remember, Hagar is basing this on many years of practical mechanical
experience he has accumulated, not just what he has read on a forum as he is
learning how to run his first $500 beater car.

It works, but just be cautious, and remember free advice has no warranty. If
you have little experience, buy the tools, learn to use them, and keep your
motor running.  If you are willing to find out you timed it wrong by walking
home, have at it.
BTW, exhaust temp gauges are great things.  Go a long way to keepig things
whole.
-James

> -----Original Message-----
> From: vwdiesel-bounces+jhsg=sasktel.net at vwfans.com
> [mailto:vwdiesel-bounces+jhsg=sasktel.net at vwfans.com]On Behalf Of
> H.Hagar
> Sent: Thursday, March 25, 2004 8:43 AM
> To: vwdiesel at vwfans.com
> Subject: [Vwdiesel] Injection timing --(Hillbilly tuning 1980 to 86
> Bosch )
>
>
> As time goes by , more and more of you will begin to tune by feel
> and sound.
> So here are some notes.
>
> We were asked :
>
> What are the signs of advancing timing too far? Shawn Wright
>
> The Hillbilly tuning procedure makes it clear that you should move the
> pump a pencil line at the time. If you do it that way , you have
> nothing to fear.
>
> When it gets too far the noise in idle ---( the marbles on the
> plate get bigger)
> gets louder.  From where you can detect it and to the point where
> it will hurt
> the engine ---is many pencils.
>
> Do not do a Hillbilly and then do the injectors.  The sequence is
> important,
> first the injectors then the Billy.
>
> Now for the rest of indications lets ask the mechanics here ---how's about
> it Loren and Ferguson ?.
>
> Mine starts "too good"  and no smoke on a cold startup.  Does it
> wind up as
> overheating ? maybe.And very rough idle.?.
>
> Hagar.
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