Mitsubishi Pajero Noisy engine

1991 Mitsubishi Pajero Problem

Ref#20008
CarMitsubishi Pajero 2.5 diesal
Year1991
OwnerDaz the hat
Posted31/10/2016
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Iv fitted 1991 2.5 engine in my 2002 l200 it runs but sounds tapperty iv adjusted tappets still sounds rough can anyone help

Solution 1
1/4drive | Auto Insider | Since: Jun 2011 | Posts: 25 | Fixes: 1859 | View Garage
Suggested Solution

The actual tappets could be worn themselves,
only way to be sure is strip them out and eyeball the ends.
Or it could be diesel knock,
Sounds very like tappets,
Check the pump timing.


Posted on Monday 31st of October 2016
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Solution 2
whittingehame | Legend | Since: Oct 2009 | Posts: 444 | Fixes: 11971 | View Garage
Suggested Solution

With an engine as old as that you should always hear it running and checked for wear / noises before buying and fitting .Every possibilty knackered engine after 25 yrs .


Posted on Monday 31st of October 2016
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From Original Poster
Daz the hat | Driver | Since: Jul 2015 | Posts: 0 | Fixes: 0 | View Garage
Suggested Solution

How do I check timing and what is diesal knock ?


Posted on Tuesday 1st of November 2016
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Solution 3
1/4drive | Auto Insider | Since: Jun 2011 | Posts: 25 | Fixes: 1859 | View Garage
Suggested Solution

Diesel knock is basically the injector triggering at the wrong time in the cycle i.e not injected at the correct point BTDC.
Too soon or too late.
So the injection pump cam timing has to be checked.
usually by pinning or lining up the crank/pump marks.


Posted on Tuesday 1st of November 2016
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