It takes 3 things to make an engine run.  You say they've checked fuel and
ignition 3 times, but you never mentioned if they've checked the third
thing; compression.  How fast does it crank over?  Too fast means low or no
compression.
  Was a compression test done of this engine recently?  If not you need to
do that.  A differential compression tester will not only tell you if it has
good compression, but the leakdown will also show where the pressure is
going, if it is escaping somewhere.
  Incorrect valve adjustment can cause low compression.  Back to
basics..............

Mike B.

----- Original Message -----
From: "BenT Syncro" <syncro@GMAIL.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Thursday, August 28, 2008 9:04 PM
Subject: Re: Help needed: ABA conversion has spark and fuel but won't start.

> Neil,
>
> Thanks, I did ask the mechanic if he checked the timing and firing order.
> He
> said he checked and verified both 3 times.
> I suspected that might be the issue. I plan on checking it for myself
> later.
>
> The specific engine management stuff is question. That would affect
> drivability but the thing should still start, right?
>
>
>
> BenT
>
>
>
>
> On Thu, Aug 28, 2008 at 5:06 PM, neil N <musomuso@gmail.com> wrote:
>
>> Is the cam/crank/distributor timing correct?
>>
>> These should line up at the same time:
>>
>> cam ("OT")
>> crank pulley notch (lines up with mark on timing belt cover)
>> rotor (with mark on distributor body)
>>
>> Make sure all the engine management stuff is plugged in to the right
>> place.
>>
>> You're getting spark, so I assume the power management relay works.
>> (though it wouldn't hurt to listen for a click on this relay when key
>> turned to ignition)
>>
>> If I think of anything else, I'll post.
>>
>> I installed an OBD1 ABA in my Westy.
>>
>> Cheers,
>>
>> Neil.
>>
>>
>>
>>
>>
>> The Jetta Bentlley is a good source of info.