Ask an Expert..... » DID 2008 tappet adjustment

#1 by s1rally , Thu Feb 25, 2016 12:26 pm

Hi fellas
Any of you ever came across tappet adjustment being too tight Before adjusting?
The engine is cold, and running fine except a little tappety tick around 1500 rpm when coming off the throttle
The stated adjustment is 0.09 inlet and 0.14 exhaust. But I can just get a 0.08 between the exhaust camshaft heel and roller which should be 0.14.
Anyone ever had this?

#2 by 123hotchef , Thu Feb 25, 2016 12:48 pm

are u adjusting them hot or cold

#3 by s1rally , Thu Feb 25, 2016 1:03 pm

Going to do them cold, haven't adjusted them yet as was unsure why they would be tighter than the standard tolerance, valve and valve seat wear is the only thing I can think of

#4 by Benson , Thu Feb 25, 2016 3:35 pm

@Nick has done his a few times, he should be able to advise

#5 by Nick , Thu Feb 25, 2016 4:36 pm

New shapes are done cold, too much shit to take off to do hot.

#6 by s1rally , Thu Feb 25, 2016 5:14 pm

Just going to do them now, it's sat stripped all night. Will post how it goes.

#7 by Nick , Thu Feb 25, 2016 5:18 pm

Are you cleaning the inlet manifold?

#8 by 123hotchef , Thu Feb 25, 2016 5:19 pm

should whilst it is stripped huh nick

#9 by Nick , Thu Feb 25, 2016 5:23 pm

Yes I did, soak it overnight really

#10 by s1rally , Thu Feb 25, 2016 11:00 pm

Yes I had the manifold and rocker cover sitting in alloy wheel cleaner over night.
Something not right with the tappets inlet was 0.05 and 0.08 on exhaust.
Going to pop into Mitsubishi at the weekend for advice, the truck runs good just a little tappet noise now and again.

#11 by Nick , Fri Feb 26, 2016 2:30 pm

My 2013 book says gap sizes are,

0.09mm Intake (cold)
0.14mm Exhaust (Cold)

#12 by s1rally , Fri Feb 26, 2016 6:00 pm

Yeah thats the very settings I got off the manual Nick. Strange how the gaps are closer adjusted than the recommended setting and running ok.

#13 by Drencher , Mon Feb 29, 2016 10:55 pm

I recently did my tappets and also found quite a few tighter than the spec provided by Mitsubishi; maybe half of them IIRC. I've adjusted them all to the correct tolerance and she's running fine. Possibly a little more tappety sounding but nowt major.

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DID 2008 tappet adjustment

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