WPS500S question

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WPS500S question

Postby grunf1976 » Sat Nov 12, 2016 10:20 pm

Hello,
I just got WPS sensor and would like to know if it can be used in diesel running compression testing, as most cars that Im working on are VW diesels?
Thnx
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Re: WPS500S question

Postby STC » Sun Nov 13, 2016 12:32 pm

Grunf

The official line will be that it is safe and accurate to use up to 500psi (34.47 bar). Being a quality product, it will probably be ok if you were to exceed that by 10 - 15% occasionally and for very short periods however that would be at your own risk and unadvisable.

Use a Dial Gauge to get an idea of what these engines are peaking at to make the decision before you put safety and the WPS at any unnecessary risk. Just be sure fuel delivery to the cylinder is paralysed whilst testing.
Last edited by STC on Sun Nov 13, 2016 5:38 pm, edited 1 time in total.
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Re: WPS500S question

Postby volrem » Sun Nov 13, 2016 1:26 pm

It's ok if you don't exceed maximum pressure range as STC stated. Check with mechanical gauge first.
And there is lot of heat so I would say it's safe for a short period. I have used max 10 seconds at time.
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Re: WPS500S question

Postby grunf1976 » Sun Nov 13, 2016 4:04 pm

Thnx for your info. I never used transducers before, just was curious if it is possible and safe to use.
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Re: WPS500S question

Postby Autonerdz » Sun Nov 13, 2016 7:00 pm

The pressure is not the issue. Heat is.

You can do diesel running compression testing as long as you do it for a short time. The higher diesel pressures generate a lot more heat. That is what will damage the WPS battery and cause it to fail. So, set up, make your capture and shut it down. Don't leave it on there for any length of time.
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