coolant pressure test..
07-22-2006, 06:41 AM
#3
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Join Date: Apr 2002
Location: Harrisburg, PA
Posts: 47
Originally Posted by Fd3BOOST' post='829485' date='Jul 21 2006, 04:42 PM
Pump it up and see if she leaks down. Is that all your gauge reads up to? I would think 25-30 would be more likley to show a leak.
Mazda suggests 20psi and looking for leakdown.
07-29-2006, 03:13 PM
#4
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Join Date: Dec 2002
Location: Wayne, NJ
Posts: 4,837
anything over 20psi is a bit dangerous, considering your coolant system probably never sees more then 18psi when functioning properly. normally if you have a leak pump it to anywhere from 15-20psi if the needle starts dropping you have a leak somewhere (internally or externally) also make sure to clamp the hose to the coolant reservoir.
kevin.
kevin.
08-19-2006, 08:35 PM
#5
Senior Member
Join Date: Nov 2001
Posts: 217
An internal leak would mean shot o rings correct? The coolant from my overflow bottle is not being sucked back into the engine. I already replaced the ast cap and the hoses for the ast. I guess I'll have to pressure test mine.
10-27-2006, 02:03 PM
#6
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Join Date: Apr 2002
Location: Was: Cincinnati,OH.... NOW: Bham, AL
Posts: 632
I'm adding this chart because I think it shows where the coolant might leak.. Its the flow of the coolant system (got it from the 7club).
[attachment=39957:attachment]
Some of the unusual hard to find leaks migh be from the motor to TB, TB back to WP (2 rubber hoses and 1 hard line). also, I've hear people loosing coolant thru temp sensor not being on tight, AST leaking, etc.
Make sure to see the chart and where there is a clap, check to see if you feel any wetness.
[attachment=39957:attachment]
Some of the unusual hard to find leaks migh be from the motor to TB, TB back to WP (2 rubber hoses and 1 hard line). also, I've hear people loosing coolant thru temp sensor not being on tight, AST leaking, etc.
Make sure to see the chart and where there is a clap, check to see if you feel any wetness.
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