Misfiring

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Re: Misfiring

Postby davidoft1 » 09 Feb 2020, 14:29

jswagger wrote:Hi,

Just an update, still not fixed.

The coil tests OK.
Can't see any vac leaks.
I've changed rotor arm, distributor cap, plugs and plug leads to rule them out.

Engines starts straightway when cold, but is a pig to start from hot, does this point to anything in particular?

Cheers again.



hall sensor in the distributor, have you got a spare you can throw in ?
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Re: Misfiring

Postby jswagger » 09 Feb 2020, 16:42

davidoft1 wrote:
jswagger wrote:Hi,

Just an update, still not fixed.

The coil tests OK.
Can't see any vac leaks.
I've changed rotor arm, distributor cap, plugs and plug leads to rule them out.

Engines starts straightway when cold, but is a pig to start from hot, does this point to anything in particular?

Cheers again.



hall sensor in the distributor, have you got a spare you can throw in ?


Hi,

Thanks for the suggestion.

Unfortunately, I haven't got a spare Hall sensor to try out. I will have to find a new one as the van hasn't had a new one in my 15+ years ownership so perhaps may be due a new one.

Cheers
1988 Caravelle 1.9 DG Auto
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Re: Misfiring

Postby Mocki » 10 Feb 2020, 08:16

squirt carb or brake cleaner onto the vac pipes and junctions in a calm and logical manner ( dont go squirty crazy and cover the engine bay on one go) and the engine revs will rise if there is a leak as the engine uses the carb cleaner as added fuel if it sucks it in
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Re: Misfiring

Postby jswagger » 10 Feb 2020, 11:28

Thanks Mocki, I'll give it a try.

With regards the Hall sensor, looks lie you can test with a multimeter. Will have a try in the morning.
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Re: Misfiring

Postby jswagger » 11 Feb 2020, 12:40

Hi,

Not had a chance to test the hall sensor yet as I need an assistant.

When the engine is hot only, it bogs down, misfires and only revs round very very slowly. The engine can be a pig start as well.

Does this point to anything particular?

Cheers
1988 Caravelle 1.9 DG Auto
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Re: Misfiring

Postby Oldiebut goodie » 11 Feb 2020, 14:00

Coil breaking down with heat?
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200hp T6
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Re: Misfiring

Postby jswagger » 11 Feb 2020, 14:29

Hi,

Cheers for the suggestion.

When I tested the coil it was fine, but would have been with a cold engine. Try testing the coil again but with a warm engine?
1988 Caravelle 1.9 DG Auto
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Re: Misfiring

Postby Oldiebut goodie » 11 Feb 2020, 17:08

Wait for a petrol guy to comment, my petrol days were over many years ago.
1.6D 2019 VW T-Cross
200hp T6
1̶Y̶ ̶1̶9̶8̶7̶ ̶H̶i̶-̶t̶o̶p̶ ̶C̶a̶r̶a̶v̶e̶l̶l̶e̶
5̶0̶8̶d̶ ̶M̶e̶r̶c̶
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Re: Misfiring

Postby davidoft1 » 11 Feb 2020, 17:10

I still think it’s your distributor, try to find one to swap or borrow
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Re: Misfiring

Postby jswagger » 11 Feb 2020, 18:06

davidoft1 wrote:I still think it’s your distributor, try to find one to swap or borrow


Cheers, unfortunately, no other dizzy to swap or borrow.

Could the distributor be the cause of the misfire if it only happened when the engines was hot?

Can you test the Hall sensor with a multi-meter?
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Re: Misfiring

Postby Mocki » 11 Feb 2020, 18:41

Steve
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just one shade of very fast grey
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Re: Misfiring

Postby jswagger » 11 Feb 2020, 19:21

cheers Mocki
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Re: Misfiring

Postby jswagger » 12 Feb 2020, 17:46

Hi,

If I wish to buy the correct Hall sensor, will either of these Brickwerks products be ok?

https://www.brickwerks.co.uk/hall-sender-kit-for-bosch-distributor-with-vac-advance.html

https://www.brickwerks.co.uk/t3-parts/e ... vance.html

Cheers
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Re: Misfiring

Postby diabolov » 12 Feb 2020, 18:11

Hi, does the engine run well when cold? revs well in all gears? only plays up when warmed up??

Just trying to get it clear i my head.
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Re: Misfiring

Postby davidoft1 » 12 Feb 2020, 18:12

jswagger wrote:Hi,

If I wish to buy the correct Hall sensor, will either of these Brickwerks products be ok?

https://www.brickwerks.co.uk/hall-sender-kit-for-bosch-distributor-with-vac-advance.html

https://www.brickwerks.co.uk/t3-parts/e ... vance.html

Cheers



Yes they work, I’ve fitted a few, but take note of the wire colouring the distributors are wired 2 different ways
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