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#2
09-22-2006, 02:35 PM
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Re: valve adjustment 99 Passport
don't need to. unless they are noise. I have never heard of a +98 owner having to do it.
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-Ryan Isuzu Moderator Car Show Tips Operations manager with a results-driven passion for process improvement FAQ 98-04 Isuzu Rodeo, Rodeo Sport, Amigo, Trooper SOLD - NOV2015 - 2000 Amigo, V6, HT winter, ST summer, 2wd 
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#3
09-22-2006, 10:03 PM
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Re: valve adjustment 99 Passport
Everything I have read says that the later (3.2L, 4 cam) engines have solid tappets. If true, at some point, the clearances will need checked/adjusted. Is my info wrong or do the valve clearances somehow just not change on these engines?
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#4
09-23-2006, 12:13 AM
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Re: valve adjustment 99 Passport
They use a bucket and shim "direct attack" system. You change the shims to adjust them which gets expensive. I've heard you cant just buy one size, you have to buy a set of them. I havent heard of anyone with an isuzu with them that has had to do it yet (some have over 200k miles). I do know of some other vehicles that needed shims done, they just turned the bad one over and it quieted down.
There is no longer a check interval on these engines. Isuzu says only do it if a valve starts making noise.
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--Dave 1999 Rodeo LS 3.2 4x4 5 Speed 32x11.50-15 BFG T/A KO 3" Lift - Rancho 9000x Rear No-Slip Locker Flowmaster 2.25" 50 Series There is a very fine line between "hobby" and "mental illness." - Dave Barry
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#5
09-26-2006, 11:27 PM
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Re: valve adjustment 99 Passport
I have actually had to do one what a PITA I learned the best thing to do is just flip the stupid shim over to the flat side if the used side is concave at all
you will need special tools for this job unless you are very good at improvising as I have become ovr the years because I can never find any of the darn special tools
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