Quote:
Originally Posted by Wileyk24
Hi guys,
Just did a major tune up on my 87 supra turbo. Plugs, wires, air filter, fuel filter, valve cover gaskets, etc. I even replaced all the air and coolant hoses in the car. I went with the ebay silicone hose kit which has 26 hoses in it. Overall I am happy with the quality of the hoses, leapyears ahead of my 25 plus year old factory hoses(so please don't flame over the ebay purchase). My car is bone stock.
So, with everything finished, my car keeps spitting coolant out of the overflow bottle. I have no signs of overheating(temperature guage is steady, stays in the middle, and never goes high or bounces around). I got a block test kit and tested my engine twice, both times no signs of a BHG.
So I assume I have to burp the system. I have heard all about it. Problem is when I try to burp the system I am not getting any air bubbles, just coolant pulsing slowly up and down and coming out of the radiator cap(when the cap is off). First I tried burping the car on my car ramps. Then I tried jacking the car even higher with my floor jack. Neither way seems to produce any difference in effect. Even did all of the above with the heater on full blast just in case.
What should I do? Car drives great, no smoke from my tailpipe, I am stumped.
Kris
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Hi! Had the same problem! found the solution by COLD pressure testing the radiator cap , found to be releasing pressure too early and continuing to zero . This can be done by making a 4 way adapter to :COLD pressurise system / check pressure / release pressure and removes bubbles , this can be put into top heater hose , please see pictures . cured by adding shim to rad cap at sealing ring to increase length . set to release at around 13 PSI ,should shut off at around 10 PSI .Check by putting the OVERFLOW PIPE into a container of water and pressurise system with a foot pump attached to the shrader valve and check for bubbles ( releasing pressure ) leave to settle and watch gauge for bubble stop ( containing pressure) .By COLD testing the cap can be removed and refitted quickly after releasing pressure .This can be left in place to generally check the system for leaks .