Vanos/marathon underway

patriot66 · Post by **patriot66** » Sat May 22, 2021 2:03 pm

bigwinn wrote: ↑Sat May 22, 2021 12:10 pm Get out!

Vanos off
Water pump off
Thermostat off

Vanos opened up and wow- anyone in doubt of whether this job is worth it or not…

The crud around the vanos pistons was unreal- the gaskets around the valve cover were like glass and the seating of the pistons was so sloppy

Off to get the bearings undone now

55012D53-135A-4984-B8C4-5880DC8A5D73.jpeg899E01F0-E2D7-4CC1-A7A7-53D5BC2FDDFA.jpegE8F7B5F9-45F1-46D6-B3A4-862A545399AC.jpegD7622FDD-35AB-4E36-B40E-D67952CD627D.jpeg

Well done Stuart

That's a lot of 'varnish' build up on the outside of those piston covers for sure

parabolica · Post by **parabolica** » Sat May 22, 2021 3:18 pm

Watching this closely; I have my vanos refurb kit sitting waiting to go and got a week off work at the start of June.

markplant · Post by **markplant** » Sat May 22, 2021 3:28 pm

More likely getting a garage to, depending on cost,
Years ago didn't seem phased about doing jobs on cars but now

bigwinn · Post by **bigwinn** » Sat May 22, 2021 6:36 pm

markplant wrote: ↑Sat May 22, 2021 3:28 pm More likely getting a garage to, depending on cost,
Years ago didn't seem phased about doing jobs on cars but now

Happy to lend a hand if you do get adventurous Mark!

bigwinn · Post by **bigwinn** » Sat May 22, 2021 6:44 pm

This afternoon:

Opened the vanos up

Seals were pooped!

I popped over to T-Tony who let me use his vice and impact wrench (lovely to meet you buddy- thanks again!!!)

That allowed me to replace the needle bearings and change the rattle rings- I didn’t do this on the 2.2 but saw this as a preventative on the bigger engine- I also recall seeing it being more prevalent on the 3.0

Home- old cylinder seals off and new ones on- rebuilt the vanos

Then popped the ns engine bolt off, new pump and thermostat on. This surprised me- the pump was the original from 2003 (as the car had only done 66k that’s not unusual I suppose) as the impeller was plastic???

Replaced with a metal impeller pump

Vanos back on, those t30’s slowed me a bit due to that damn cross member

New gaskets all round, rocker cover back on after fitting new sparks- the old ones looked fairly good

Then a general tidy up and clean round

The missus stopped play saying I was an antisocial git- but a solid six hours and it’s all back together

Not started it yet as tomorrow is

Finish cooling system with expansion tank and bleed
Oil and filter change

I’ll let you know if it runs!!!

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bigwinn · Post by **bigwinn** » Sat May 22, 2021 6:57 pm

patriot66 wrote: ↑Sat May 22, 2021 2:03 pm
bigwinn wrote: ↑Sat May 22, 2021 12:10 pm Get out!

Vanos off
Water pump off
Thermostat off

Vanos opened up and wow- anyone in doubt of whether this job is worth it or not…

The crud around the vanos pistons was unreal- the gaskets around the valve cover were like glass and the seating of the pistons was so sloppy

Off to get the bearings undone now

55012D53-135A-4984-B8C4-5880DC8A5D73.jpeg899E01F0-E2D7-4CC1-A7A7-53D5BC2FDDFA.jpegE8F7B5F9-45F1-46D6-B3A4-862A545399AC.jpegD7622FDD-35AB-4E36-B40E-D67952CD627D.jpeg
Well done Stuart That's a lot of 'varnish' build up on the outside of those piston covers for sure

Build up of gunk in weird areas Si- the oil is good nick and it’s not been neglected but I’m seeing evidence of a lot of short runs and not being driven hard

Ali0191 · Post by **Ali0191** » Sun May 23, 2021 7:11 am

Looks like it’s going well! I’m planning to tackle this over the summer but it’ll be the first time I’ve done anything like this (opening the engine!).

I have been reading the tutorial from Beisan to get my head around it, a large chunk seems to be using specialist tools to lock the timing of the engine. Have you done this and if so what tools have you used? If not have you done anything to lock the crankshaft etc?

bigwinn · Post by **bigwinn** » Sun May 23, 2021 9:25 am

No need to lock the timing at all- use this guide? It doesn’t cover the section on bearings but that’s also on x8r website

http://www.beisansystems.com/procedures ... cedure.htm

BostonJohn · Post by **BostonJohn** » Sun May 23, 2021 10:56 am

Great article but being a non mechanic not something I would attempt. One more thing to get done although I see from a thread that after 2006 cars are less prone to vanos problems? Does anyone know if that is correct?

patriot66 · Post by **patriot66** » Sun May 23, 2021 11:23 am

BostonJohn wrote: ↑Sun May 23, 2021 10:56 am Great article but being a non mechanic not something I would attempt. One more thing to get done although I see from a thread that after 2006 cars are less prone to vanos problems? Does anyone know if that is correct?

Yes that is correct. The VANOS on the N52 is much improved. I think sometimes the solenoid gives trouble but never heard of anything else

patriot66 · Post by **patriot66** » Sun May 23, 2021 11:24 am

bigwinn wrote: ↑Sat May 22, 2021 6:57 pm
patriot66 wrote: ↑Sat May 22, 2021 2:03 pm
bigwinn wrote: ↑Sat May 22, 2021 12:10 pm Get out!

Vanos off
Water pump off
Thermostat off

Vanos opened up and wow- anyone in doubt of whether this job is worth it or not…

The crud around the vanos pistons was unreal- the gaskets around the valve cover were like glass and the seating of the pistons was so sloppy

Off to get the bearings undone now

55012D53-135A-4984-B8C4-5880DC8A5D73.jpeg899E01F0-E2D7-4CC1-A7A7-53D5BC2FDDFA.jpegE8F7B5F9-45F1-46D6-B3A4-862A545399AC.jpegD7622FDD-35AB-4E36-B40E-D67952CD627D.jpeg
Well done Stuart That's a lot of 'varnish' build up on the outside of those piston covers for sure
Build up of gunk in weird areas Si- the oil is good nick and it’s not been neglected but I’m seeing evidence of a lot of short runs and not being driven hard

Well that's easily sorted

Ali0191 · Post by **Ali0191** » Sun May 23, 2021 11:59 am

bigwinn wrote: ↑Sun May 23, 2021 9:25 am No need to lock the timing at all- use this guide? It doesn’t cover the section on bearings but that’s also on x8r website

http://www.beisansystems.com/procedures ... cedure.htm

Thank you, I was reading the wrong guide! Also found some useful YouTube videos to get a picture of it.

bigwinn · Post by **bigwinn** » Sun May 23, 2021 4:47 pm

[/quote]
Well that's easily sorted

[/quote]

100% right foot application

bigwinn · Post by **bigwinn** » Sun May 23, 2021 4:49 pm

Vanos?

Completed it mate- twice

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bigwinn · Post by **bigwinn** » Sun May 23, 2021 4:55 pm

With most of the vanos work done yesterday, today was all about tidy up, check and a few small bits

Expansion tank- was looking tired, needed doing, I took advice from Enuff Zed who said when he did his, the oil thermostat under it pinged off- which mine predictably did the same! Cheers Martin.

All sorted.

Refilled coolant, checked everything again... put airbox etc back

and started it: ran a bit lumpy but settled quickly and- thats a wrap!

Gave it a blast once i was sure there were no leaks etc; much much better- runs smoothly instead of a grumpy idle before. No oil leaks etc.

I'm sad now there is no pile of parts in the garage- what to do next?

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