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friedhaggis

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Since: Jan 07, 2005
Posts: 3



(Msg. 1) Posted: Fri Jan 07, 2005 9:40 pm
Post subject: '83 Diesel - No Start
Archived from groups: alt>autos>volvo (more info?)
I have an 83 240 diesel (Audi 5 cyl) that won't start.

It was running fine on the drive to work, while idling in front of the
office, it suddenly started making a noise similar to fluid under pressure
along with the diesel clatter. The exhaust was very rick (black).

Car sat for 9 hours, and now will not start.

any thoughts on what may make the fuel system suddenly go rich, while
originally running normally?

ambient temperature about -15C

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James Sweet

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Since: Feb 03, 2004
Posts: 1364



(Msg. 2) Posted: Sat Jan 08, 2005 6:40 am
Post subject: Re: '83 Diesel - No Start [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
"brick" <friedhaggis.DeleteThis@yahoo.com> wrote in message
news:c20ca2cc355c90f6f2a9854578446bf7@localhost.talkaboutautos.com...
 > I have an 83 240 diesel (Audi 5 cyl) that won't start.
 >

It's a 6 cyl...

 > It was running fine on the drive to work, while idling in front of the
 > office, it suddenly started making a noise similar to fluid under pressure
 > along with the diesel clatter. The exhaust was very rick (black).
 >
 > Car sat for 9 hours, and now will not start.
 >
 > any thoughts on what may make the fuel system suddenly go rich, while
 > originally running normally?
 >
 > ambient temperature about -15C
 >

How's the timing belt? If it loses a tooth and slips slightly it could do
this.<!-- ~MESSAGE_AFTER~ -->

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friedhaggis

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Since: Jan 07, 2005
Posts: 3



(Msg. 3) Posted: Sat Jan 08, 2005 1:40 pm
Post subject: Re: '83 Diesel - No Start [Login to view extended thread Info.]
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Didn't know it had a timing belt, I thought it was a chain.

I'll have a look.
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James Sweet

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Since: Feb 03, 2004
Posts: 1364



(Msg. 4) Posted: Sat Jan 08, 2005 3:40 pm
Post subject: Re: '83 Diesel - No Start [Login to view extended thread Info.]
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"brick" <friedhaggis.TakeThisOut@yahoo.com> wrote in message
news:32626d7ca00c286935a69de0bc684ebb@localhost.talkaboutautos.com...
 > Didn't know it had a timing belt, I thought it was a chain.
 >
 > I'll have a look.
 >

It has a belt on the front to drive the camshaft and then one in the back to
drive the injection pump. Failure of the front belt will destroy the engine
so it's a good idea to have it changed on or before schedule. Timing on
these is very critical, and affected by the belt tension. A few special
tools are required to replace the belt.<!-- ~MESSAGE_AFTER~ -->
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friedhaggis

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Since: Jan 07, 2005
Posts: 3



(Msg. 5) Posted: Sat Jan 08, 2005 9:11 pm
Post subject: Re: '83 Diesel - No Start [Login to view extended thread Info.]
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Thanks, James. It is a belt, and is ok.

Still no start, no fuel at the injector. We cracked the injector nut and
cranked the engine, and no fuel was present.

How do you check for the fuel pump operation, apart from checking fuses?
There appears to be two pumps, at least there are two fuses, one 8 amp and
one 16 amp. I can't hear a pump operating when the key is switched on.
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James Sweet

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Since: Feb 03, 2004
Posts: 1364



(Msg. 6) Posted: Sat Jan 08, 2005 10:41 pm
Post subject: Re: '83 Diesel - No Start [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
"brick" <friedhaggis.TakeThisOut@yahoo.com> wrote in message
news:9d5907100bee4082400c7159d27ae5d6@localhost.talkaboutautos.com...
 > Thanks, James. It is a belt, and is ok.
 >
 > Still no start, no fuel at the injector. We cracked the injector nut and
 > cranked the engine, and no fuel was present.
 >
 > How do you check for the fuel pump operation, apart from checking fuses?
 > There appears to be two pumps, at least there are two fuses, one 8 amp and
 > one 16 amp. I can't hear a pump operating when the key is switched on.
 >

As far as I know the only fuel pump in those Diesels is the engine driven
injection pump. There may be a small pre-pump in the tank but I've never
messed with that end. When the injection pump on the motor fails it's a very
expensive repair ($800-$1200 for the part alone IIRC) unless you can find a
good used one and you need a few special tools to time the new one. No
reason not to replace the timing and injection pump belts at the same time.<!-- ~MESSAGE_AFTER~ -->
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