What's in the workshop this week, Pelikanblau edition

[Mechcanico Lee]

Some good theory’s on the oil consumption , I like the thoughts .

Some of the petrol Vauxhall’s have a pcv unit inside the rocker cover with a take off pipe that comes directly from inlet manifold ( quite a big bore pipe )

This internal pcv valve in the rocker cover fails and on overrun and light throttle loads where manifold vacuum is high it pulls the oil into the manifold and the oil gets burned that way .

There’s a few engines that suffer with high oil consumption that are pcv issues , tell tale is oil filler cap gets sucked on with some vigour or dipstick gets sucked in if you pull it out a touch . The bmw valvetronic suffers with high oil consumption, that has pcv issues

Some of these issues support the ‘ only uses oil at lower revs ‘ lower revs less throttle openings = higher manifold vacuums , more chance of oil getting pulled into pcv .

I’ve never seen this but heard that on some engines where the oil scraper rings are on the piston ,the oil drillings or micro slot passsages through the piston ring landings can get carbonised up so the oil control rings cannot do there job of scraping the excess oil away .

Would of been a good diagnostic lesson to strip that engine Mikki jane to have a look just for the knowledge gains .

Good post carry on with the good work

[MikkiJayne]

D2s are never straightforward...


We discovered this 3 inch crack while Vera was cleaning the engine bay



The tig guy is coming tomorrow morning so I can't put the engine back in today as planned.

At the same time, we also discovered the clutch hose was frayed:



Thanks to Goran and Mike, I actually have one of these hoses on the shelf!! Its going to be a pig to change and I still can't put the engine in, but at least we have one.

[MikkiJayne]

Spin up the engine on the stand to build oil pressure, then we know its all good to go when its back in the car.

[Dezzy]

Has the car been in a smack at some point? I think I read somewhere the official procedure after an 8 was hit was to remove the engine to inspect the BHD as they can crack. But that weld looks robot welded so wouldn't expect it to fail from a hairline crack from removing the cup to quick.

[MikkiJayne]

Originally Posted by Dezzy

Has the car been in a smack at some point? I think I read somewhere the official procedure after an 8 was hit was to remove the engine to inspect the BHD as they can crack. But that weld looks robot welded so wouldn't expect it to fail from a hairline crack from removing the cup to quick.

There's no other evidence of accident damage. I believe this is from hitting a pothole and bottoming out as there is also the usual crack in the sound deadening above the control arms too. I've seen another one pull the brace bracket off the chassis leg from the same sort of event.

The tig guy is going to re-melt the weld to fill in the crack and I'm hoping the welding won't melt too much of the paint. Vera went out for a pelican blue aerosol this afternoon so I'm hoping to be able to make it look reasonable afterwards. The weld itself is hidden but some of the paintwork won't be.

[27litres]

I love your methodical approach MJ - you put a lot of mechanics to shame!

[Ameiseuk]

Fascinating work as always!
I watch these posts with so much interest

[steamship]

Originally Posted by 27litres

I love your methodical approach MJ - you put a lot of mechanics to shame!

I would say MJ puts all mechanics to shame. Not only does she do the work, make her own tools, cares for the car, she also seems to find the time to fully document it with words and pictures, which in itself entertains and educates all of us.

[steamship]

Originally Posted by MikkiJayne

D2s are never straightforward...


We discovered this 3 inch crack while Vera was cleaning the engine bay

At least she was in the right place when it was found.