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  #71  
Old 20th March 2021, 07:14 PM
MikkiJayne MikkiJayne is offline
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I only got a couple of hours on the engine today due to other stuff so stripped off the timing gear and bracketry.

The previous belt change was done with genuine parts but without the locking tools - note the paint spots



With the crank locked, the cams weren't lined up. The timing gear is not very old so it'll all be going back on but this time with the bar.



The crank pulley bolts were replaced last time which is a bonus



The thermostat was in upside down! I wasn't planning on touching this, but the radiator hose was dribbling much more than normal so it needed to be investigated. The little feature at 6 o'clock is a vent which is supposed to allow the system to bleed air through the thermostat when cold (otherwise the stat gets airlocked and won't open). It's supposed to be at 12 o'clock since that's where the air is



After that I got slightly distracted and made a radiator pressure testing tool



Hook up to the tyre inflator and check for leaks...

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  #72  
Old 20th March 2021, 08:13 PM
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homer simpson homer simpson is offline
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Simple, but genius!
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  #73  
Old 20th March 2021, 10:43 PM
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RICKY D RICKY D is offline
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Oh my!

I’m not impressed with that at all

Yes, the crank pulley bolts were replaced about 4 years back. I don’t know if you remember on my thread when that came off and left me stranded on the motorway. That scenario is what prompted the whole cambelt/water pump etc being replaced back then (poorly by the looks of it )

At least it’s been spotted and will be corrected Thank you Doctor

Loving the radiator testing tool. Genius
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  #74  
Old 21st March 2021, 10:44 PM
MikkiJayne MikkiJayne is offline
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Lots done today. Started off cleaning the engine



Unusual to leak from the cam seals so I'll replace both of these



Better



Time for the oil cooler pipe.



The old pipe was broken at both o-ring grooves leaving it in three pieces







Aluminium version fitted



The coolant pipe o-rings, unusually, are both intact



The right hand flange was beginning to get a bit crusty though so just as well both o-rings will be replaced



On to the inlet manifold - the usual oily grit down between the heads and the manifold flange. I cleaned this out as much as possible



before flipping the engine over to take the manifold off, thus ensuring none of the grit gets in to the inlet ports



The inlet manifold is a bit grubby so I'll deal with that in a bit



The usual oily gunge - I'll clean the area above the inlet ports while the engine is upside down







The sump wasn't leaking (also unusual) but it was pretty crusty and the paint was peeling off in many places so this came off to get painted



Not bad inside. Some carbon deposits but mostly clean



Right way up again to clean under the inlet manifold



Much nicer!



Breather plate back in place



The inlet manifold brightened up well with some Elbow Grease

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  #75  
Old 21st March 2021, 11:33 PM
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RICKY D RICKY D is offline
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It’s such a shame that 95% of this engine beautification won’t be seen. Just as well I can save all these pictures to remind me

Just going back to your previous post about the timing, does that mean the timing is/could be out when the new belt was offered up? I still remember my dad timing a car using the old strobe light gun when I was a kid

Edit: just re read the post. So it looks like the timing was off as the cams weren’t aligned? Can you damage the engine by doing this? I always thought if timing was out you get interference. The rev counter has seen 7k many times since the belt was changed
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2002 S8 - Irish Green Pearl. Cat N (saved by the D2 Doctor )

1988 E30 Coupe - Royalblau Metallic

2003 S4 Avant - Light Silver Mettalic

2016 S5 Coupe Black Edition - Ibis White


Last edited by RICKY D; 22nd March 2021 at 07:04 AM.
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  #76  
Old 22nd March 2021, 06:36 AM
tintin tintin is offline
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"The inlet manifold brightened up well with some Elbow Grease"

Good to see that this can be done. Is this an Actual Product, or just another form of weekend light upper body exercise for you?
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  #77  
Old 22nd March 2021, 07:43 AM
MikkiJayne MikkiJayne is offline
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Quote:
Originally Posted by RICKY D View Post
Just going back to your previous post about the timing, does that mean the timing is/could be out when the new belt was offered up? I still remember my dad timing a car using the old strobe light gun when I was a kid

Edit: just re read the post. So it looks like the timing was off as the cams weren’t aligned? Can you damage the engine by doing this? I always thought if timing was out you get interference. The rev counter has seen 7k many times since the belt was changed
Its an interference engine, but with quite a lot of tolerance to valve timing variation. Its about half a tooth out which won't do it any physical harm, and the ECU can compensate to an extent with the variable cam timing. It just won't run as well as it could.

When I re-fit the belt using the proper tools it will be spot on.

Quote:
Originally Posted by tintin View Post
Is this an Actual Product, or just another form of weekend light upper body exercise for you?
Actual product Elbow Grease Degreaser
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  #78  
Old 22nd March 2021, 12:55 PM
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homer simpson homer simpson is offline
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Quote:
Originally Posted by tintin View Post
"The inlet manifold brightened up well with some Elbow Grease"
It was mentioned in another thread. Can be bought from Amazon in MJ's link but Asda also sell it and probably other supermarkets

Asda
https://groceries.asda.com/product/c.../1000120228346
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  #79  
Old 23rd March 2021, 10:09 PM
MikkiJayne MikkiJayne is offline
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I found these interesting little chunks in the sump on Sunday



Yep, bits of one of the tensioner pads



Caught it just in time!



The gauze was still intact on this one, and the tensioner locked up properly, so the gauze will go in the bin



New pads fitted and the cam & tensioner back in place (spot the slightly cleaner bolts)





New cam seals since the blank was already leaking and the open seal was a bit crusty



A bit of gunge in the cam cover



Cleaned up a bit with new seals



Passenger side done

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  #80  
Old 23rd March 2021, 10:48 PM
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RICKY D RICKY D is offline
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Quote:
Originally Posted by MikkiJayne View Post

Caught it just in time!


OH

MY

GOD!

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2002 S8 - Irish Green Pearl. Cat N (saved by the D2 Doctor )

1988 E30 Coupe - Royalblau Metallic

2003 S4 Avant - Light Silver Mettalic

2016 S5 Coupe Black Edition - Ibis White

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