93grayeg

iTrader: (1)

hey guys I got a b20b in my 89 si hatch , the car started overheating , the heat is barley there. . I tried bleeding the system , didnt get any air bubbles. . I let the car idle and the heat started to work. . . as soon as I drove off the needle went right up to hot and there was no heat what so ever. any ideas?? Im thinking thermostat. . problem is whoever had the car before me stripped the one thermostat housing bolt. . .

pure_honda

yea thermostat is def a option but maybe headgasket i had the simular problem with my gsr do a leak down test and it will tell u whats goin on

93grayeg

iTrader: (1)

thanks man , anyone else
?

lsvtecracer

If your top hose is warm/hot and your bottom hose is cold then it's the thermostat. It's stuck close so water is not circulating.

Steve

93grayeg

iTrader: (1)

thanks a lot man thats what I was thinking

darkenedsol

Ok-first change your thermostat and ensure ALL the air bubbles are out, then make sure your coolant is topped off and you should be good. Best of luck!!!

fcm

Either thermostat or water pump, a head gasket would be a distant 3rd.

Thermostats are cheap enough, just replace it, Heli-Coil the stripped bolt hole.
http://www.youtube.com/watch?v=RFYa6sjhh_E 94

kyden

is it just the head of it that is stripped? grab a bolt out socket.

93grayeg

iTrader: (1)

thanks man , im replacing the thermo today , will see what happens

phunhaus

Could be a clogged radiator.