Intermittent boost

[The devil]

Hi guys,
I wrote recently saying that I had lost boost, strangely it came back, today, its gone away on holiday.

I checked the actuators and they seem to push back OK with some amount of pressure and still no boost. they are definitely still connected and the little cir clip has not rotted away.

All the pipes seem OK and I'm guessing that would not be the problem anyway as the boost went and came back. I'm a little at a loss.

Any ideas gratefully received

Andy

[The devil]

Only up to zero

[The devil]

No dump valve
the boost needle does move from less than zero up to zero when you put your foot down

[The devil]

with the actuators in the rest position are the waste gates open or shut

[The devil]

Where is the boost pressure measured

[The devil]

Well down on power
I've checked all pipes, pulled the pipe off the boost controller but don't really know what to expect pumping it with a bike pump, nothing happens

[The devil]

Just spoke to Martin at Bespoke, working late again, dropping it down there tomorrow
Thanks for all suggestions
Luckily Bespoke is only 2 miles away

[The devil]

Well, Skip found it, front turbo seized solid