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doing a boost leak test right now

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Alex Bland

10+ Year Contributor
666
3
Jul 2, 2008
Seabeck, Washington
alright so im doing a test right now and theres a cupple things i see, the vaccume hose for the pcv valve...where the injectors seat onto the motor (not sure how to fix that one) and i can hear one big one (not sure how long it should hold air in the tb area) but airs leaking out fast and i cant find anything else or anything big.. i was thinking maybe the intake mini gasket on bottom? im not sure where should i look im mostly at a birds eye view of the motor not sure what can leak around there and what to look for. thanks
 
for where the injectors seat to the head you just gotta get new injector to head insulators. they are very cheap. and about the TB, try turning the throttle. if the leak changes then it's ###### your TB shaft seals.
 
yeah i looked on there and couldn't find the head to injector insulators. only an o-ring kit for the top 2 seals. i suck at searching for stuff.
 
alright thanks guys one more thang. My biss screw is leaking air. it i unscrew it to change the rubber o ring, how will i know how to set it back to normal?

OEM MITSUBISHI | LOWER INJECTOR INSULATOR / O-RING | MD087060

These would be the rings you would need I believe.

The shafts though you would have to look around, the above recommended sites should have them tho.

on the website it says "each" but in the pic it shows 4..so would that be 2.50 each seal or each set =p sorry kinda dumb
 
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