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Re: [T3] Compression?


	ning is find another mechanic!  The D-Jetronic is about the
simplest electronic FI that's been made, it's easy to understand, but
most mechanics don't want to take the time.  Therfore, it would behove
you to go get the Bentley factory manual as well as look at some other
websites for info(sorry, don't have the URLs right handy, but there's
a dandy out there on the 914 D-Jetronic).  Then you can refute the BS
some mechanics hand out.

That said, you're going to want to replace all the hoses and seals,
they're no doubt hard and cracked or going to crack.  You need to get
higher pressure rated stuff than standard bug fuel line as well as the
right sized stuff.  If not replaced, you can go up in flames.

When you bump the key a couple of times, you're just making the pump
run until it times out, a safety feature.  That brings up pressure in
the lines to where you can start the car.  This is my normal starting
procedure after the thing has sat for a week or better.  The pressure
will normally bleed off over time, there's a check valve in the pump
that can get tired or you can have cracks in the fuel lines that will
bleed gas but not show up as drips under the car and those will make
the pressure go down faster after shutoff.

A compression check will refute most of what that mechanic is saying.

Congrats on getting a T3 with such low mileage.  A LOL's car perhaps?

On Tue, 13 Jul 1999 13:16:02 -0400, you wrote:

>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 o}ost 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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