'89 overheating

[ddmcse]

one reason i switched to electric fan . reason 2 : more hp cuz: the electric fan isn't driven by belts and the motor

Originally posted by ddmcse@Jun 12 2005, 10:00 PM
is this a turbo or N/A ?
i've driven with a bhg for thousands of miles . just kept checking everything every morning an avoided heavy traffic .
even toyota told me i didn't have bhg at one point , i think they only really check compression and if that looks ok they write off the bhg idea. generally it's not like water comes gushing out
see here how thin the distance is from cylinder to water
http://www.ddmcse.com/turbo/images/bhg.JPG
you'll see the blown area this gasket had a special bite in the gasket to prevent gasket movement and it really did bite down and leave a pattern on the head and block

N/A

How does it work? How does the bhg cause the overheating problem, and the water rushing? I never would have thought of it. Also, how much am I looking at to fix it?


I don't think it is the clutch fan since i'm having no problems with the clutch

[ddmcse]

once a leak starts hot exhaust starts heating up the coolant because it's passing the gasket and coming in contact with the coolant ..at the same time the coolant is burning off as it seeps into the cylinder once you take it apart you'll see signs of white on the exhaust .
the rushing water sound comes from the lack of coolant in the system cuz some it burned away

since you are'nt boosting this engine a stock gasket should be fine for you .


there are a few things you can do to prolong your agony but having been through it before i'd say "get her done"

check the block and head for signs of corrosion

http://www.ddmcse.com/turbo/images/process/0hrs.JPG

notice the corrosion here .. a stock gasket is somewhat forgiving and will form to the pits much more than a metal gasket . the metal just won't fill those pits and gaps . since i wanted more boost and knew i was going to put pressure on the system i went with metal and smooth the block to a nice fine finish
you will be pleased to find out the job is not as tough as you may imagine .. just alot bolts not much in the way of special tools

[ddmcse]

directions for BHG

http://www.geocities.com/MotorCity/Speedwa...y/1636/bhg.html

[KingDiamond]

clutch fan is totally seperate from your clutch for your transmission. the clutch fan when it operates properly locks in place and brings the fan to the appropriate operating speed at which if its not working in stop and go traffic would cause you to overheat.

[ddmcse]

since you aren't boosting you might be able to get away with a new gasket and torquing the head bolts down to better than factory specs of 55 lb i've done 72 lbs and i think i did 80lbs this last head . but see how bad the block looks .. you really should check the head for flatness .

you want to go all out of just get the damn thing done ? you could do it for real cheap
how many miles on the engine ?
ever changed the timing belt ? if u r going to do the head now would be the time to change the Timing belt

[KingDiamond]

i'm still saying he needs to either look for appropriate signs og bhg or have a shop look at it, cause my car is doing the same thing in stop and go situation, and i know i don't have a bhg, been checking coolant for past 3 days, has not moved an inch, no mixing of coolant and oil, no loss of power, no white smoke once she has warmed up. gonna have smoke at first start due to condensation build up in exhaust.

[ddmcse]

king is your fan working ?

[ddmcse]

i don't know where the oxygen sensor is on the N/A but i know it's right behind the turbo on a gte and it's easy to pull . one could easy see the condition of the exhaust

[mrnickleye]

Go to a recommended repair shop and get a chemical test done to see if the gasket is blown. It is very cheap test. Watch them do it. I too drove mine for three months with bad gasket. It was putting gasses into the cooling system when the fuel was burning, (most pressure in the combustion chamber). It pressurized the system, and would push it into overflow bottle on LONG drives. I wasn't loosing coolant into the engine. I did get the heater core gurgles alot.

Head gasket solved all problems.