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[Diamond Black Geezer]

Looks like 'in the woods' isn't the only place The Bear sh!ts 

[Marks DTM Calib]

i bought an o ring set from hellfrauds. only couple of quid and all the o ring sizes you could need

That only guarantees that you wont have the correct sized O ring for what you need  (I have a metric and imperial set and they are never bloody right  )

[Webby the Bear]

Fair point.

Just to re-clarify Mark.... will a bolt actually screw in to that port where the servo pipe usually goes? and the o rings just help seal it up?

[Diamond Black Geezer]

Hope something like a wishbone bolt or something will pop in. It's fairly hefty, seem to recall 22 or 24mm spanner used for the vac hose. Will rummage in the garage...

[Webby the Bear]

Hope something like a wishbone bolt or something will pop in. It's fairly hefty, seem to recall 22 or 24mm spanner used for the vac hose. Will rummage in the garage...

17 and 19 used to undo / tighten the brake servo vac hose

[symes]

Hope something like a wishbone bolt or something will pop in. It's fairly hefty, seem to recall 22 or 24mm spanner used for the vac hose. Will rummage in the garage...

your thinking of pipe to egr

[Diamond Black Geezer]

That I am. There were so many spanners knocking around that night my mate came round - me being one of them 

[Diamond Black Geezer]

Right chaps, progress is...
after blocking off the main servo vac pipe and inlet on the plenum, that brought the idle, very slowly, to about 800rpm 

So... After looking as carefully as I can, I can't see any suspect pipes. So can anyone point me in the right direction?sorry it's a short one, using my phone.

 

[aaronjb]

Start putting the pipework back a bit at a time.. I'd start by blocking off the 'takeoffs' from the large pipe to the servo and then reattaching just the servo to the system as there's always a chance the servo is itself leaking air in, and then work your way out from there.

[Marks DTM Calib]

Also check the servo pipe just behind where it joins the plenum, they can rub on the air con pipe here and result in a hole is a hand fisted spanner spinner has not put them back correctly with the plastic spacer.

From then its a case of working backwards, enabling vac systems one by one.

[Diamond Black Geezer]

Hi all,

I was already out at a prior engagement when I posted that, so unable to reply or of course do anything further on the old girl.

Yep, I'm now following the logic. Sorry, by the time I get on the car late evening, the old grey matter is starting to fail a bit.  I understand now, how blocking it off there cuts the vacuum to the earlier pipes, too.

Fitted good 2nd hand elbows to the T-piece on the servo main vac pipe, so they're now eliminated as suspect.

[Webby the Bear]

How did you end up blocking it off mate? Bolts 'n' o rings?

[Diamond Black Geezer]

See here, my friend... 

http://www.omegaowners.com/forum/index.php?topic=126439.msg1618712#msg1618712

[Webby the Bear]

See here, my friend... 

http://www.omegaowners.com/forum/index.php?topic=126439.msg1618712#msg1618712

Cheers mate. so 1p piece and loooads of gaffer tape! And it didn't want to fire at you? lol

[Diamond Black Geezer]

Honestly, seemed fine. And the idle being controlled, steady, and slowly dropping until it settled out at approx 800rpm (maybe a shade under) was a good sign. I just looked at how long I'd spend finding something that was the right sort of thread, then finding O-rings, and thought "well what if..." and there we go. Just a good turn around each to ensure a good seal, and that was that. 

Will remove and block the T-piece first, then the single one. That should narrow it down straight away. Fingers crossed for the 'single' pipe, as that's narrowed down to one thing straight away!

Ok, so to add to info. For the first half a minute maybe of running (engine was pretty much up to temp btw) there was a slight whistle. The best way I can describe it is being like the comedy whistle when people are snoring in cartoons! Literally, approx 4 every ten seconds. So eg: 2.5secs quiet... 2.5secs whistle... 2.5secs quiet... etc...

I'm going to hazard a guess and say this is one of the 'bagpipes' only a hunch. Now whether this is air escaping, or normal operation, I can't say. Appears to be rearward, at the bulkhead.