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AuthorTopic: Isuzu 2.5 TD trouble  (Read 3849 times)

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Offline Lord

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Isuzu 2.5 TD trouble
« on: November 20, 2004, 09:08:12 »
Has anyone else had this problem?

I have had, 3 times now, number 2 cylinder exhaust pushrod come out of the rocker..... not while running thankgod but after stopping. Only find it when starting again and the symptoms are similar to a flat battery cranking then dieing a death. Easy enough to put back but if anyone has had a similar problem what did you do?

 :roll:
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Offline hobbit

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Isuzu 2.5 TD trouble
« Reply #1 on: November 20, 2004, 09:59:02 »
could be a bent pushrod, or worn cam lobe, or cam follower if they have those, no nothing about these engines, this is just general fault finding
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Kev

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Offline muddysteve

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Isuzu 2.5 TD trouble
« Reply #2 on: November 20, 2004, 10:41:54 »
i thought it was a frontera not a trooper if you're who i think you are

Steve
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Offline Lord

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Isuzu 2.5 TD trouble
« Reply #3 on: November 20, 2004, 17:23:12 »
Hello Steve....

Yes it is a Frontera.... But I never said it was a trooper.... the engine is Isuzu 2.5 TD not the other thing you get in them.....

Push rod looks straight and can't see anything obvious inside the engine. It's just a bit strange that it only does it on shutting off the engine and not running it. Going to have to whip the heads off i think and have a good look round if this happens too often and see what i can find.

Lord
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Why own a 4x4 when you can have 2 4x4's.....
One frontera for my sins.... and one humber utility Pig ex northern Ireland riot vehicle, internal security vehicle, for the real down and dirty work....
You are my crumple zone!!!!

Offline muddysteve

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Isuzu 2.5 TD trouble
« Reply #4 on: November 21, 2004, 10:15:38 »
do they have hydraulic tappets or adjustable ones on those engines?

Steve
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Offline Lord

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Isuzu 2.5 TD trouble
« Reply #5 on: November 22, 2004, 17:29:05 »
They are hydraulic tappets but some one has susgessted a weak spring or damaged valve sticking allowing the rocker to come free from the pushrod...



I really should put a profile on here!!!!
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Why own a 4x4 when you can have 2 4x4's.....
One frontera for my sins.... and one humber utility Pig ex northern Ireland riot vehicle, internal security vehicle, for the real down and dirty work....
You are my crumple zone!!!!

Offline Lord

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Isuzu 2.5 TD trouble
« Reply #6 on: April 02, 2005, 21:05:07 »
Eventually nailed the problem down to an injector spring being weak.... All injectors serviced and all running fine now... Also that sorted out a slight steering wobble too..... Unusual that one, but it's all good if it all works....
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Why own a 4x4 when you can have 2 4x4's.....
One frontera for my sins.... and one humber utility Pig ex northern Ireland riot vehicle, internal security vehicle, for the real down and dirty work....
You are my crumple zone!!!!

Offline Manicminer

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Isuzu 2.5 TD trouble
« Reply #7 on: April 02, 2005, 22:06:17 »
On some of the isuzu engines you have roller bearings on the camshaft and not shells. These can wear out allowing the cam to move by a considerable amount. Usually it shows up as lack of power because the cam is moving aside instead of pushing what it's meant to. Maybe it moved sideways and let the pushrod come out?
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