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Old 03-25-2013, 12:13 PM   #1
poly_poly-man
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Default Coolant issues

So, my car's not happy at the moment, and I'm sure it has something to do with how hard I've been driving it lately (taking advantage of LC + NLTS as well), but I can't fix that whole situation without fixing my car first. So, don't lecture me about what caused this :P

This all started a few weeks back, I'm driving around when I notice my ECT shoot up. Alright, coast as best I can into a parking lot, avoiding using the engine as much as possible, but I have no idea what damage I may have done.

Turns out the lower radiator hose just plain came off the radiator - all my coolant out on the street somewhere. I had most of a bottle of subaru coolant left, plus some water (distilled until I ran out of that, then sink water for the school I was by. Not ideal, but it got me home).

All's okay, until a few days later, I go to drive it (same bad watered-down coolant mixture in there), and again it starts to overheat - and I've lost massive amounts of coolant again. This time, it doesn't seem to have spilled, but check the oil, and sure enough, I found at least some coolant :/ .

Before I realized that the oil was shot, I drove the car one more time, just down the street to the corner store (I knew I had little to no coolant, but I also knew that the car wouldn't heat up in the entire trip). Weirdest thing about that - absolutely no turbo. The car would rev through the whole range like an NA engine, absolutely no audible sound from the turbo, BOV never let any pressure out.

So, my thoughts were: hope it's turbo seals and not head gaskets. I pulled off the turbo - first thing I noticed, not sure whether it was like that or whether I messed it up pulling the heat shield off, was that the wastegate actuator arm had come off the wastegate hinge. I lost the retaining clip a few years back, but it had never given me issues. Alright, that could explain the lack of boost, assuming it was like that already.

There's no shaft play on the turbo, the wheel spins mostly freely by hand (although it does seem to catch ever so slightly on something, it feels like - it also makes a faint metal noise as I spin it).

So, I have the turbo out of my car, no coolant in there except what's in the oil, and oil that was due for a change anyway.

How do I diagnose and fix what's wrong for the least money possible (I'm on a college budget, so even the costs of coolant and oil add up fast)? My initial reaction is to bundle everything back up, change out the oil and coolant completely, and then see what happens from there, but I'd hate to waste a carfull of both of those liquids...

Any advice appreciated - except that I should be nicer to my car, because I already effing know that :P
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Old 03-26-2013, 03:46 AM   #2
sonicwrxpa
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This sounds exactly like me right now.
My 03 bugeye with a vf34 is losing coolant fast this past week. I've narrowed it down to turbo and HG. I also checked my turbo and found that it seems to spin freely and have no play but did slightly catch at one spot, and spun very slowly you could almost hear it just as you described. Oil is clean and I only smell burning coolent. I plan on taking it to blouch one day this week and seeing if they can help.
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Old 03-26-2013, 03:21 PM   #3
boosted25
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I bet the turbo seals are junk. My friends vf34? Ball bearing turbo is burning Coolant and we thought it was the head gasket for the longest time lol.
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Old 04-02-2013, 09:13 AM   #4
sonicwrxpa
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I called blouch and they (quite rudely) insisted a turbo will never burn coolant and that I was an idiot for apparently not knowing how a turbo seal works. They said it is either a head gasket or a cracked head... Now I'm sad :-(((
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Old 04-02-2013, 10:00 AM   #5
art@grimmspeed
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Quote:
Originally Posted by sonicwrxpa View Post
I called blouch and they (quite rudely) insisted a turbo will never burn coolant and that I was an idiot for apparently not knowing how a turbo seal works. They said it is either a head gasket or a cracked head... Now I'm sad :-(((
Are you getting any bubbles or boiling in the overflow tank when the car is running and warm? That is a easy sign of a bad head gasket
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Old 04-02-2013, 03:58 PM   #6
sonicwrxpa
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I checked and it does have very small bubbles coming up while running. But only if I give the upper rad hose a squeeze. It's not losing much coolant and it doesn't seem to be losing any oil. Guess my next step is a leak down test. Thanks for the help.
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Old 04-02-2013, 07:09 PM   #7
jaxscuby
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blown head gasket if your seeing bubbles in coolant resevoir..
if you see coolant in oil pan..cracked cylinder..

not good news either way..
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Old 04-02-2013, 07:13 PM   #8
Nikryj
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Do a compression and leak down test.
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Old 04-02-2013, 11:24 PM   #9
sonicwrxpa
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Yea that's the next step. And I guess il start looking into a 2.5 hybrid... This sucks I was just about to get the 300zx back on the road/track.. :-/ anyone know a good write up for a hybrid build? Please post a link.
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Old 04-03-2013, 03:20 AM   #10
sonicwrxpa
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After a little searching I've found more info than I can deal with... Starting a list for a basic 2.5 hybrid build. Pretty excited to finally tackle a heart!
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