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Old 07 December 2009, 10:59   #71
Country: UK - England
Town: Essex/Vendee
Boat name: shockwave,Voluntry 2
Make: Pac 22/ searider5.4
Length: 6m +
Engine: 180hp turbo,yam 90
Join Date: Nov 2004
Posts: 1,010
Originally Posted by doggypaddle View Post
Or just fit a chalwyn one, they're mechanical and operate on a air flow.
How much money are we talking about do you know

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Old 08 December 2009, 04:58   #72
Country: UK - Wales
Town: Here
Boat name: doggypaddle
Make: Avon 5.4 Searider
Length: 5m +
Engine: yamaha 80
Join Date: Jul 2007
Posts: 1,107
havent a clue mate, (link to website earlier on in thread)but not much i shouldn't think, theyr'e a very simple device containing only a flap and a spring, and an adjusting thread.
I guess you specify the engine capacity in litres, and the maximum boost pressure, and engine max RPM and they supply them adjusted to suit. Or maybe you just keep tightening the spring until it doesn't trigger under normal conditions?
even if they're a few hundred quid its cheaper than the alternative
And on the subject of runaway turbo diesels i think all diesels should be intercooled intercooler(shrapnel arrestor) is very effective at preventing engine damage if you get a catastrophic inlet compressor failure. I have replaced a few turbos and had to shake pieces of turbine out of intercoolers.

I am usually not as green as i am cabbage looking.
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