Re: Help please: 85 Scirroco shutdown...(long due to detail

["matt (j.m.g.) murchison" <mmurch@nortel.ca>]

In message "Re: Help please: 85 Scirroco shutdown...(long due to detail", 
'hugacub@whidbey.net' writes:

>> There may be a combination of causes, three things to check out from 
>> least to most expensive:
>> 
>> 1) Replace fuel filter.
>
>This is included in the recall work the dealer is doing Thursday, or 
>else I'd pop one on.
>> 
>> 2) Have injectors pressure purged, not just the pour-in-the-gastank
>>    variety.
>>
>I'll see if they can do this when they change the pump and filter 
>Thursday.  In fact, I'm thinking of seeing how much they'd want to 
>clean out the entire fuel system (tank and lines).  Just seems like 
>the thing to do when the new pump is installed.  Any idea on what the 
>cost (or time) is for this job?  Since I've never been to this 
>dealer, I want to see if they're trustworthy.

Rick,

Had this done for @ $60 Canadian, no more than 1 hour of work. From
what I understand, there's a fuel injector tester to check the spray
pattern (should be nice cone).. Over time grunge in the system and
deposits from "heat sink" effect of an engine cooling down after a 
15 minute or less drive accumulate on the injector tip.

The result, a spray pattern which is more like a solid stream which does
not combust as well or at all! Also, you can have the rubber o-rings
replaced in which the injectors plug into. These guys get hard over time
and make a poor seal and cause intermittend weird running problems. I 
believe you can get o-rings with a small hole in each to help better
atomize the fuel when it leaves the injector tip. 

Anyhow this should be done anyways as it is normal to not replace
injectors by the average owner and, they'll be due for such a cleaning.

Good Luck,

Matt


> 
>> 3) I've heard over time the actual fuel lines themselves can rust at the 
>>    points in which they are fastend to the underside of the car. Very 
>>    expensive for parts and, steering rack must be removed to install.
>> 
>I'll have VW look at this too.  Thanks for your help !
>
>> The first 2 steps should be done anyways, at least you should notice an
>> improvement with cold and hot idle.
>> 
>> Matt
>Rick    hugacub@whidbey.net
>'85 Scirocco 8V

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