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coolant in overflow ONLY when i hit boost ??

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Old 03-08-2005, 07:27 AM
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Default coolant in overflow ONLY when i hit boost ??

i have done searches and all signs point to my HG
i pulled the plugs and check the cyclinders and #234 have carbon build up BUT #1 was clean
so coolant is getting into #1

my question is, are tehre any other coolant passages that can sneak into the #1 cyclinder other then the HG ??

if i stay out of boost my coolant level is pretty much normal

theres also no discoloration in my oil (from coolant) or in the coolant (from oil)

i have also re-tq'd my stock headbolts to 50lbs

current setup is d16y8, 450CC, k26 turbo, DSM BOV and custom FMIC

thanx in advance
Old 03-08-2005, 07:32 AM
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Default Re: coolant in overflow ONLY when i hit boost ?? (BlackCRX)

i've had that happen before, a small crack in the head gasket. The problem with single cams is that the sleeves shift causing the head flexing, to fix that you have to sleeve the block.
Old 03-08-2005, 07:32 AM
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Default Re: coolant in overflow ONLY when i hit boost ?? (BlackCRX)

What are your water temps running at?
Are you running straight water or water/p. glycol?

Otherwise its your headgasket.
Old 03-08-2005, 07:35 AM
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currently running water and coolant, about 50/50 mix

my water temp only went up once for like 30 seconds and i pulled over right away
before i even made it to the side the temp went back down

popped the hood and the overflow was topped and the rad was almost empty

you guys think just slapping in some arps and tq'ing it down to 60lbs will work ?? if its a small crack that is

thanx for the quick reply guys
Old 03-08-2005, 07:38 AM
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Default Re: (BlackCRX)

Get a new headgasket and some arp's. Follow the instructions with the arps and not the helms.
Old 03-08-2005, 07:44 AM
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whats the difference btwn the arp instructions vs the helms one ??
just tq spec's
Old 03-08-2005, 07:47 AM
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Default Re: (BlackCRX)

Torque Specs and torque method.

You will see when you get the instructions.
Old 03-08-2005, 07:53 AM
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thanx dasher

so i geuss theres no other coolant passages that can sneak into the motor right ??

im just worried its not the headgasket after a days worth of work and $200
Old 03-08-2005, 07:58 AM
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Default Re: (BlackCRX)

Don't worry, I think you would notice if your sleeved is cracked and leaking pressure into your coolant passageways.

You need the headstuds anyways. No turbo honda should run without them.
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