My Murple

[MikkiJayne]

Finally cleaned...



This one is not quite so clean inside as the AQH was. Fewer miles, probably more short journeys.



The heads are clean enough though.



Flipped it over to get the sump off, which also got cleaned. It takes ages to get all the old sealant off.



Going back together tomorrow

[David's8]

I always look forward to the weekends for another episode of WITW
Everything you've said seems to support the idea that these cars need frequent driving in a "spirited fashion" and for long distances. This lockdown this year is just really bad for them. Any period sat idle seems to cause F125 issues and a general clogging up of arteries

[tintin]

Originally Posted by David's8

I always look forward to the weekends for another episode of WITW
Everything you've said seems to support the idea that these cars need frequent driving in a "spirited fashion" and for long distances. This lockdown this year is just really bad for them. Any period sat idle seems to cause F125 issues and a general clogging up of arteries

I think "spirited" is more important than "long distances" - mine's been on very few long drives (i.e. more than 20-30 miles) over the last five years, and my engine seems to be very clean

[Nognar]

Just love this and love these threads

I work a lot on my D2 and A2, but lets say to a "Low to Medium level" so these are fascinating to me.

Also some of the photos are really useful so I can get an idea of where something is or how it all connects up as I tackle something on my own car.

[Architex_mA8tey]

Originally Posted by tintin

I think "spirited" is more important than "long distances" - mine's been on very few long drives (i.e. more than 20-30 miles) over the last five years, and my engine seems to be very clean

I think that I've probably driven it further than you over the last five years!
(And done better mpg!)

[MikkiJayne]

Decided the sump is too scruffy to put back on, so this is getting blasted and repainted tomorrow.



Alloy oil cooler pipe. This one had already had a replacement plastic pipe fitted, but since I took it apart to check it got the upgrade anyway.



Oil cooler back on. I've discovered it is much easier to attach the cooler block with the water pipe already in it than to do them separately. Obviously thats only with it out of the car.



Locked the cams in preparation for doing the chain tensioners. I forget - have I done a detailed write-up of how to do this job? I'm sure I have, but if not I'll make a separate thread if anyone cares to know the details - I took loads of pictures.



Right hand side first



Mark the chain according to the notches in the cams and the arrows on the caps



Good tramlines in this one



A close escape! The gauze is intact but coming detached, and would soon have gone in to the tensioner and ruined it.



Peeling apart



This is the passenger side - the gauze has already gone, but on the passenger side it will be sitting in the bottom of the tensioner and not causing any damage, unlike on the driver's side where it gets stuck in the start pin.



Tensioners are still good This is the driver's side which is firmly locked in place on the start pin. The bottom foot doesn't move at all, the top one moves on it's spring



Warm up the new tensioner pads in a cup of hot water



New pads fitted to the tensioner



Victor Reinz cam cover gasket. If you look around these can be had for ~£20 a side - less than half the OE version (£46 each).



Cam cover cleaned up and the new gasket fitted



Assembly lube on everything (including under the cam caps I removed) as this engine has been sat for a long time and is very dry inside. This should help reduce wear when it turns over again, and will just dissolve in the oil when it starts. I'm using this instead of oil as it is very sticky so will stay put until I need it, whereas oil would just drip away.



On to the crank front oil seal. This is a pain to fit as it is very narrow in a pretty tight space, and it sits over a bushing rather than the crank itself.



This is the bushing, which is clamped to the oil pump gear by the crank sprocket. Normally I put the seal in first, then push the bushing in but it is very difficult indeed to get the bushing in to the seal without folding over the outer lip.



So a custom tool is in order The alloy piece on the left sits over the bushing which has the oil seal fitted to it off the engine. The tool then allows both the bushing and the seal to be pressed in to the front cover in one go, thus ensuring no damage to the seal



It fits together like this - tool on the bottom, bushing sitting in it, and the seal around the bushing



Fitting it to the engine. There is a precise relationship between the bushing and the seal. The tool is machined to just the right depth so that when the bushing bottoms out on the crank, the seal is pushed in to the correct depth.



Done. Very pleased with how this worked You can see how tight the outer lip is on the bushing.



A new bolt is needed for the crank sprocket. This has been already been tightened to 200Nm with the torque wrench. Now it needs another 180°



Luckily I have eaten a lot of cake over lockdown It was bending both the breaker bar and the engine stand, but I managed it.



Timing gear back on, but the new belt isn't here yet so it'll stay like this for a few days.

[tintin]

Originally Posted by Architex_mA8tey

I think that I've probably driven it further than you over the last five years!
(And done better mpg!)

To be clear Neil, for anyone else reading this, you're talking about my S8, not yours

[The_Laird]

I just love the workshop posts! Who needs soaps?

[RICKY D]

Originally Posted by The_Laird

I just love the workshop posts! Who needs soaps?

Certainly not me. This is a far better watch.....and there’s always a good ending

[David's8]

Originally Posted by The_Laird

I just love the workshop posts! Who needs soaps?

Or Antiques Roadshow on Sunday evening when we have this antiques roadshow to look forward to every Sunday night.... the cars being the antiques, not you MJ - or the owners
I'll get my coat.......