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[JamesV6CDX]

Ok, so - I fitted the 12 replacement inlet valves I had lapped in. I did the paraffin test again, and some were still leaking - nowhere near the waterfall it was before, but, still far from satisfactory, at least 6 of them had seepage from the valves, with the inlet ports full of paraffin.

It's taken me literally ages, carefully re lapping each one with fine paste. I've gone for the "fit the collets with a small screwdriver and some grease approach" which takes a few minutes per valve, but at least doesn't cost in toolage.

I now have a 100% tight valve seal on all of the 12 inlet valves, and the first exhaust valve, but I had to stop there, the back wouldn't cope with any more lifting and moving the big old straight 6 head, operating the spring compressor etc.

Bit fed up with it again (and depressed at how long stuff like this takes me now) so walking away until Tuesday for a long weekend.

On a bright note, if I can get the exhaust valves to all seal in the same way the inlet ones (finally) have - I'll have a bloody good, free head, aside of elbow grease and grinding paste!

I guess I should have realised valves that have covered 175,000 miles might take some lapping into a foreign head.

I will not settle for anything other than a 100% tight seal on each one, given the lengths I've already gone to with this car

Pics to follow

Ps - lesson of the day - don't use coarse paste, on a modern ali head. After some careful lapping with that, the leakage was worse than before. It's only the fine paste, and some time and carefulness, that's allowing them to seat correctly. I think the coarse grade is too abrasive for modern heads.......

[JamesV6CDX]

Sorry for the lack of updates, I've had a lot of other stuff going on so this has been low on the list.

I finally got all the valves to seat. An overnight leak tests showed them all tight. The only way I could get it to work was some really gentle cutting with fine paste.

Here is the finished valve job with 24 clean valves, and the head, valve areas etc nicely de coked (note final clean on the head not yet done)



Here's the (huge) gasket ready to accept the head




And here's the head, resting in place, nice and shiny



and with the bolts loosely fitted:



Lifters, rockers, camshafts, sprockets all fitted. Timing all set and chain fitted and tensioned:



New turbo ready to be fitted (and an afternoon beverage for me)



Exhaust manifold in place with new gaskets / studs, and turbo fitted. Note the EGR blanking plate. Heatsheild also to follow:



Rocker cover fitted, along new gasket, also refitted the vacuum pump, injectors x 6, high pressure fuel rail, associated pipes and connectors, leakoff pipes, airbox, etc blah blah



New thermostat fitted and both serpentine belts replaced for new contitech items:



Inlet manifold, ready to refit. Note I had just removed all the swirl flaps and installed blanking plates in their place to prevent any future failures. Actuator and vacuum pipework still left in place to fool ECU into thinking flaps still present, and thus not log a code. Inlet manifold now fitted (not pictured) and all new bosch glow plugs fitted with a smear of copperslip.



A whole load of stuff, such as viscous fan and cowling, coolant hoses, vacuum hoses, charge and intake pipes, and all the fiddly shite - oh and the pretty covers etc, resulted in a look something like this:



Also full of fresh oil and coolant.

[tunnie]

But does it start and run?   

[Entwood]

Well done mate, excellent job, especially under the circumstances 

BTW  at 20:32 the video is shown as not available

[Sir Tigger KC]

Yes bleddy good effort! 

[JasonH]

Wow - that is an impressive amount of work and carefully and properly done.

[citroenguy]

Lovely jobley 

[TD]

But does it start and run?   

I hope it did...but James has gone quiet on that 

[Doctor Gollum]

Forgot to bleed it or TB stole all its electrickery

[JamesV6CDX]

I've worked out why you couldn't see the vid 

[Lazydocker]

https://youtu.be/feidiot9Iltg

Video unavailable 

[JamesV6CDX]

The OOF swear filter is changing the link

[Lazydocker]

The OOF swear filter is changing the link

 

[JamesV6CDX]

https://youtu.be/fet wat9Iltg

Use the above without the space (type don't click) and it will work.

OOF is changing the 4 letter T word in the link to "idiot"

[Lazydocker]

Still not working