Re: [T3] Compression?

["R.J. Latherow" <rjl@executive.tm>]

A pox upon non-FI mechanics and all their ilk.  At least the ones that can't
admit they have no clue.


Basically, every time you turn the key off and on, you make the pump run,
which build up fuel pressure.  That crazy wonderfull FI of ours needs a
ridiculous amount of pressure to be happy.

What is probsably happening is that something is draining off your pressure
while you sleep.  Probably a leaking injector or a sad Fuel Pump check
valve.

Youve replaced the hoses, right?  At best, they have a 5 year lifespan.
Those original VW hoses can leak without seemin to- the fabric soaks them up

I went through this with 3 cars recently - all were low miles, and therefore
had spent a fair amount of time sitting.    Most rubber in the FI was not
feeling very happy.

-rj
-----Original Message-----
From: Joh��"�ki <consultkaminski@worldnet.att.net>
To: Type 3 <type3@vwtype3.org>
Date: Tuesday, July 13, 1999 2:22 PM
Subject: [T3] Compression?


>I just joined this list after buying a '69 Squareback with only 53,000
>miles!  Lots of little things and a few important things need to be fixed
>(Thanks to whoever put the info on clock repairs!).
>
>The car's in a VW shop on Long Island (I know I should be doing my own
work,
>but I've got to get up to speed with all of this.  Besides, I live in
>Manhattan, so it's not like I can disassemble the engine on Columbus
>Avenue!).  I'm still waiting to hear what the mechanic has to say about the
>things I brought it in for, but he has said one thing that I thought was a
>bit strange.  I wonder if readers of this post would comment.
>
>Like I said, the car's a '69 SB, all stock with the fuel-injected 1600
>engine.  It's a bitch to start, but I can usually get it going within a
>half-dozen tries, sometimes less, but sometimes it can take 5 minutes or so
>of repeated crankings.  I assumed this is due to the fuel-injection system.
>Usually if I turn the key to the "on" position, then "off," then "on," and
>repeat this four or five times, she'll start.  My understanding was that
>this process adds gas and eliminates excess air in the cylinders.  The
>mechanic, however, said the fact that it's so hard to start sounds like
"low
>compression" to him, not the FI.  By turning the key on and off, I'm
helping
>to add air to the cylinders therefore building compression.  I admit that
>I'm a bit worried about the compression.  I can forget about moving from a
>dead stop on a steep uphill grade when stopped at a red light.  It just
>ain't gonna happen.  But why immediately jump to the idea of a compression
>problem when the FI system seems like an obvious culprit?  And doesn't he
>have it wrong about turning the key off and on?
>
>Thanks again and look forward to joining the group.
>
>John Kaminski
>
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