150 kPa cap

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01-25-2016, 08:53 AM

jurob

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150 kPa cap

Is it ok to run a 150 on my 86 245?

It was building any pressure so I borrowed the cap from my 94 945 which is 150. The 245 was a 75.

It now has pressure in the coolant hoses.

Couldn't find a 75 locally.

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01-25-2016, 09:52 AM

tryingbe

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It's fine.

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01-25-2016, 03:26 PM

lev

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I'd get the right cap. May be the cap you had was bad. But a 150 cap would keep much more pressure than a 75lbs cap before releases--may be unhealthy. I tend to follow Volvo's recommendations when in doubt.

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01-25-2016, 07:59 PM

brickrunner

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It is not ideal and I would only use it temporarily until I get the correct one. With that said, I see Volvos pictured on the internet all the time with the wrong caps and they seem to be running fine and with them.

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01-26-2016, 06:16 AM

act1292

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Yeah - but if it runs too much pressure and end up blowing a hole in an aged heat exchanger - oh what a job!

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01-26-2016, 08:05 AM

jagtoes

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Quote:

Originally Posted by jurob

You've got twice the pressure for a system designed for half. Nothing good can come out of it. Go order another cap. What does the 75 KPA cap do. Does it blow off coolant

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