I have a 3.9 block that Im trying to test . I have made flat steel plates with 2mm thick rubber stuck to them to blank off holes , fitted a pressure gauge and put 30psi in .
The gauge doesnt move at all for an hour but had dropped to 20psi after another 4 hours .
I have done the soapy water thing round all my fittings and the tops of the liners and cannot see any evidence of a leak .
So far I have only done one side of the block .
Is this much of a leak to much ?
Thanks
Pressure testing block
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Re: Pressure testing block
Can you submerge the block in a tank of water ?
Or pressurise it with a smoke machine to highlight any possible leak areas ?
Or pressurise it with a smoke machine to highlight any possible leak areas ?
Re: Pressure testing block
I used a big bath of water. It was hot water as well.
![Image](https://www.cowdery.org.uk/images/v8misc/pressuretest.JPG)
Chris.
Chris.
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Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
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Re: Pressure testing block
I wish I was young again , Id be heaps smarter than the first time
Re: Pressure testing block
I do love a bit of ingenuity,
Well done
Well done