ok well i have a gsr engine in my 92 hatch, and i changed the thermostat a couple times and bled out the lines, and then maybe a week or so later ill have to bleed the lines again and then it'll work fine,, and the pattern continues.. how is it that air keeps getting into my lines?? thanx jim

 

a few things come to mind:

1. Make sure the bleeder screw is in very tight, it can come loose and actually after a spirited drive fall out.
2. Let the car warm-up at idle, then when the thermostat opens, burp the upper radiator hose with the rad cap off, refill if necessary.
3. Torque the thermostat housing bolts to 108 in/lb
4. Check your cylinder sleeves for cracks/scoring, a sure sign of leakage through a cylinder sleeve would be white chalky deposits on top of the piston itself.

good luck

 

this is probably a dumb question but where is the bleeder screw??

 

The bleeder screw is near the upper radiator hose nozzle on the head. Sorta facing towards the radiator. But I think some years it wasn't there??

Another idea... Your radiator cap & the hose leading to the reservoir. Every time the engine heats up, the cap lets some coolant push over to the reservoir. When it cools off that's supposed to get sucked back in. A few things can let it suck air instead of coolant:
- If the reservior's empty.
- If the hose isn't all the way to the bottom of the reservoir.
- Same thing if the hose has a leak somewhere.
- The outermost seal (biggest diameter) of the radiator cap doesn't seal against the very top of the radiator neck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sihatchyvtec &raquo;</TD></TR><TR><TD CLASS="quote">this is probably a dumb question but where is the bleeder screw??</TD></TR></TABLE>
if you have a bleeder screw it should be located just behind the point where the upper radiator hose meets with the engine. looks like a bolt with a small hole in the top of it