Rotaxmaxke's S14 rebuild

rotaxmaxke · Post by **rotaxmaxke** » Sat Dec 06, 2008 8:10 pm

rotaxmaxke · Post by **rotaxmaxke** » Sat Dec 06, 2008 8:11 pm

rotaxmaxke · Post by **rotaxmaxke** » Sat Dec 06, 2008 8:14 pm

special BMW tool

rotaxmaxke · Post by **rotaxmaxke** » Sat Dec 06, 2008 8:15 pm

Tomorrow more pictures if allowed

ac/dennis · Post by **ac/dennis** » Sat Dec 06, 2008 8:31 pm

Very impressive work! Looking forward to tomorrow, hope I can sleep

gerrit323 · Post by **gerrit323** » Sat Dec 06, 2008 10:00 pm

Finally you show up again

Nice and impressive job you're doing ... see you tomorrow

Gerrit

Jeroen · Post by **Jeroen** » Sun Dec 07, 2008 12:05 am

Great job mate! No expenses spared, right the first time ey?

So, yes, keep them pics coming until the end!

You had professional help with building, balancing, etc?

Also interested in parts specs, what did you use... and we'll be more than interested how she runs after all this!

rotaxmaxke · Post by **rotaxmaxke** » Sun Dec 07, 2008 11:22 pm

Today we made again a little bit progress.

water tubes installed

intake

it looks like an engine again

gerrit323 · Post by **gerrit323** » Sun Dec 07, 2008 11:23 pm

Well done

Peter V. · Post by **Peter V.** » Sun Dec 07, 2008 11:26 pm

Looks very good.

Peter V

rotaxmaxke · Post by **rotaxmaxke** » Sun Dec 07, 2008 11:27 pm

Jeroen wrote:Great job mate! No expenses spared, right the first time ey?

So, yes, keep them pics coming until the end!

You had professional help with building, balancing, etc?

Also interested in parts specs, what did you use... and we'll be more than interested how she runs after all this!

It must be perfect from the first time !

I did the building myself with the help from my brother.
The balancing and new bore was done by a pro. I dont have the machines for it.

Specs ... what do you want to know?

Jeroen · Post by **Jeroen** » Mon Dec 08, 2008 12:39 am

Well since apart from the block everyting is new... all of it!

rotaxmaxke · Post by **rotaxmaxke** » Mon Dec 08, 2008 2:26 pm

1 Wössner high performance pistons
2 Schrick camshafts 276° outlet and 284° intake
3 Schrick titanium valve spring retainers + Schrick double valve springs
4 Schrick out and intake valves
5 New OEM Crankshaft 84mm stroke
6 New OEM oilpump with slightly higher oil pressure
7 ...

Jeroen · Post by **Jeroen** » Mon Dec 08, 2008 2:48 pm

OK well even though it doesn't look like I will be needing a rebuild in the near future, I might want to ask again when my engine's up for a rebuild. Thinking about having a look at the conrod bearings (drijfstanglagers) though.

About the oil pump, I've heard that the stock S14 oil pump is more sensitive for wear (return valve) hence people advice to place the Sportevo pump. Is that what you fitted?

Can't wait to see and her your machine again, good luck with the last bits 'n bobs!

rotaxmaxke · Post by **rotaxmaxke** » Mon Dec 08, 2008 9:34 pm

Jeroen wrote:OK well even though it doesn't look like I will be needing a rebuild in the near future, I might want to ask again when my engine's up for a rebuild. Thinking about having a look at the conrod bearings (drijfstanglagers) though.

About the oil pump, I've heard that the stock S14 oil pump is more sensitive for wear (return valve) hence people advice to place the Sportevo pump. Is that what you fitted?

Can't wait to see and her your machine again, good luck with the last bits 'n bobs!

If I can help, let me know

The sportevo pump has no anti-return valve I think ...
But gives 5 bar.
I have placed an extra washer to increase the oil pressure on the new stock pump.