Low boost

[Wilburnator]

Hi all,

Just got back from a week away with the caravan and enjoying the new power from the 3" exhaust. Drove approx 300km there with the boost hitting 18psi (no limp mode) on the long hills etc. egt's were really low all was good.
However coming home, all was good until one longer hill, and I noticed boost had dropped seemingly rather sudden - maxing at 12psi and naturally high egt's (did the roadside check of Dawes, hoses etc...)
Nursed it home, and now the fault finding begins... my initial thoughts are perhaps a leak on the intake side after turbo??? (Intercooler, pipes etc.)
Is there any other things I should look out for??

Thanks in advance


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[Wilburnator]

Update-
It turns out the ball and spring got stuck in the Dawes valve. A bit of a fiddle and all is back to normal!

Is it a common problem?


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[Daveyboyjunior]

You've done well to trace that back Wilby.
Glad you're on top of it...
Sounds like you're set-up is working OK for you.