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[Andy B]

so I deserve to be the most stupid member medal

Is Otosan still a company? Maybe cheaper motoring.    

[cem_devecioglu]

Thanks for your interest, good night

[HerefordElite]

good news Mehmet exchange rate is better at moment 750TRY = only 296GBP  

Sure anyone on here would sort parts and postage for you if you need bits

problem is the GBP part is fix TRY part changes so they profit more

oh sorry got the exchange rate the wrong way round £350 is 885TRY

Just ask on here and i for one would be happy to try and source bits for you

[feeutfo]

so if i read correctly, leaking  stem seals are a possible cause re pre cat issue, and Micks car has an inferior item fitted from the factory?
And its not necessarily down to mileage/use/thrashing when the dreaded 0420/30 appear?

If so any idea on which engine numbers are likely to be effected by these/how long where they in the production run? Can they be told apart by part number from other drive by wire cars. In short, how to tell if an individuals car would be effected with these stem seals?

When your ready... I can see your busy:-)

Looks like fun though.

[M0T0RVATE]

i have just rebuilt mine mark with facelift manifolds ported the heads on exhaust side put 4 g cams in junked the egr and sec air inj system heads were refurbed skimmed all new inlet valves new valve seals all valves re lapped runs sweet and does have a lot more go in it !  

While having a look around my '94 3.0L, I discovered that the secondary air injection system is already removed, (well most of the main parts...lol)...

I am also going to remove the EGR system completely.  
Is there a blanking plate for the intake plenum, or do I just fabricate my own, as originally planned.

Only had my Omega about 6 weeks, so still needs a few bits sorting...

 

[Martin_1962]

so if i read correctly, leaking  stem seals are a possible cause re pre cat issue, and Micks car has an inferior item fitted from the factory?
And its not necessarily down to mileage/use/thrashing when the dreaded 0420/30 appear?

If so any idea on which engine numbers are likely to be effected by these/how long where they in the production run? Can they be told apart by part number from other drive by wire cars. In short, how to tell if an individuals car would be effected with these stem seals?

When your ready... I can see your busy:-)

Looks like fun though.

All DBWs until 2002 AFAIK

[TheBoy]

Ok, stripped a head down today.

Here is a pic of the trouble stem seals.

The green one is the standard Vx stem seal as used throughout the 2.5 and 3.0 production run plus most of the other big block 4 pots to!

The red one is the issue, it is vey hard and I could simply pull it off the guide with my fingers (compared to the ones on TB's old heads which required special pliers and brute force to shift even at 10 years old and 100K+ miles).

Now these came into existance because some low life, sorry purchasing person, decided to try to save a penny a seal by using an alternative which had not been proven!. I trust they were sacked, fired and buried for that one!



Here are all the removed items, these will be soaked in caustic soda for 24 hours before having a good hot rinse and final clean in an ultrasonic bath.



And the head, this will gently 'bleed' old oil until I get a chance to pressure wash it down ready for a bit of 'touching in'

About 147k

So is it just the 2.6, or 2.6/3.2 fitted with these, and is it all of these engines or just a subset (I guess at the moment we don't really know?)

[Marks DTM Calib]

I have a question in with GeffD on this one!  

[feeutfo]

how many miles on Micks car, just out of interest?

And are these seals likely to be prematurely effected by alternative fuel like lpg?

[Marks DTM Calib]

how many miles on Micks car, just out of interest?

And are these seals likely to be prematurely effected by alternative fuel like lpg?

I dont recall, about 100K ish.

They are bad though, I have never before been able to remove a stem seal with my fingers and the valves just fall through them once the collets are removed!

It appears as if the rubber is not oil tolerant which is pretty piss poor given where they spend there working life!

Might get a few valves cleaned up tonight so will post some further pics.

Might also get the head initialy de-greased ready for some work.

[MikeDundee]

Kepp up the good work Mark .....just one query though, thought you were just gonna keep an eye on the tyre pressures .....why's the engine in bits

Ow bugger, forget to do the tyres!

Not a problem though, there on ebay so will have a new owner shortly!

Ahh, thats Ok then,  :-?......I can stop drinking now, had me worried there for a minute

[MikeDundee]

how many miles on Micks car, just out of interest?

And are these seals likely to be prematurely effected by alternative fuel like lpg?

I dont recall, about 100K ish.

They are bad though, I have never before been able to remove a stem seal with my fingers and the valves just fall through them once the collets are removed!

It appears as if the rubber is not oil tolerant which is pretty piss poor given where they spend there working life!

Might get a few valves cleaned up tonight so will post some further pics.

Might also get the head initialy de-greased ready for some work.

Mileage is just under 120k

[Marks DTM Calib]

If this work does not make a difference to the running of your car Mick, I will be very surprised!

[feeutfo]

how many miles on Micks car, just out of interest?

And are these seals likely to be prematurely effected by alternative fuel like lpg?

I dont recall, about 100K ish.

They are bad though, I have never before been able to remove a stem seal with my fingers and the valves just fall through them once the collets are removed!

It appears as if the rubber is not oil tolerant which is pretty piss poor given where they spend there working life!

Might get a few valves cleaned up tonight so will post some further pics.

Might also get the head initialy de-greased ready for some work.

Mileage is just under 120k

Can you remember the mileage when the cat code first came on? Probably a better indication of the seals life.

[Martin_1962]

I have a question in with GeffD on this one!  

I asked around a while ago

Started with DBW - for about 1 year AFAIR

GeoffD reckons +18bhp from 3.0 cams

196bhp

How much from some gentle porting?