Date: Sat, 17 Oct 2009 18:11:14 -0700
Reply-To: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Scott Daniel - Turbovans <scottdaniel@TURBOVANS.COM>
Subject: Re: Surging engine
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reply-type=original
Hi,
yeah, like what you are saying here .......
fuel distributor, differential pressure regulator, and the 'other' pressure
regulator.
I have never spent a lot of time messing with CIS.
I happen to own one now ....actually two ......one is just an engine - 1987
Jetta 16 Valve 1.8, with CIS-E.
( would sell that entire engine , not too expensively )
and a 1978 450SLC Mercedes 4 seat sports car.
I think that one has a bad warm up regulator ( what you call press
differential reg -same thing I believe ) .
I haven't found time to check the fuel pressure on that device when cold.
I trick that car into starting by operating the cold start injector in short
pulses with the windshield washer switch.
Just a few taps, baby it through the first minute or so and it'll idle.
that car is pure mechanical CIS too, no electronics.
it's for sale too .............running...........nice looking light blue,
straight body , $ 1,200, southern Oregon.
the fuel distributors are usually removed from any of those cars found in
junk yards.
there's a jetta with CIS in a pick n pull near me. I grabbed the warm up
reg. The fuel distributor could still be there.
I for sure would go to Digifant. Works just fine. I did an 88 jetta 1.9
with Digifant into a diesel vanagon once, worked just great.
Fast starting, smooth running, etc.
stand alone EFI is attractive.
would be fun to give that a try. Not a whole lot to loose I don't think, as
long as it doesn't cost to much in the first place.
Scott
www.turbovans.com
----- Original Message -----
From: "pdooley" <psdooley@verizon.net>
To: "'Scott Daniel - Turbovans'" <scottdaniel@TURBOVANS.COM>;
<vanagon@GERRY.VANAGON.COM>
Sent: Saturday, October 17, 2009 2:29 PM
Subject: RE: Surging engine
> Yep, I gathered that from the OP.
> The mechanic who worked on the van said some kind of flow device was bad.
> Maybe he meant the fuel distributor, maybe he meant the differential
> pressure regulator attached to the fuel distributor.
> FWIW, there is also a diaphragm pressure regulator which controls system
> pressure.
> The OP is gonna talk to the mechanic that issued the original diagnosis to
> get clarification and hopefully more details.
>
> Regarding little things- this was an engine swap. One simple loose or
> weak
> ground wire could wreak havoc.
>
> And yes, I would take EFI over CIS any day.
> Standalone EFI systems have come down in price and have a huge knowledge
> base on the web.
> Or one could go with Digifant2, simple hookup with about 6 wires to
> splice.
> Probably even easier to integrate considering all those extra fuel lines
> with the CIS setup.
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> Scott Daniel - Turbovans
> Sent: Saturday, October 17, 2009 4:28 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Surging engine
>
> there's misunderstanding going on in this situation it seems to me.
> The fuel injection is CIS-E ......based on that it has a computer, and CIS
> was on a lot of those jettas back then.
>
> I just put " Bosch 0 438 101 005," into google, and see right off that
> it's
> the Fuel Distributor.
>
> those are expensive, and problematic, from what I gather.
> whether that is 'the cause' if surging I couldn't say, not without much
> more
> info.
>
> I will say though.........I see SO MANY times when it's just 'little
> things'
> ......
> details, adjustments, air leaks, lubricating stuck things .........etc.
> etc.
> etc.
> that are all adding up to cause an engine to not run right.
>
> and I am not replacing parts that cost hundreds or thousands of dollars
> getting vanagon engines to run right.
> Actually, I see LOTS of parts that are replaced unnecessarily - I see that
> going on a lot, it appears to me anyway.
> I do think that CIS is more difficult to deal with, in general, than
> Electronic Fuel Injection.
> Scott
> www.turbovans.com
>
>
>
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