Sc12 Supercharged Small Bore - Teeth in the oil
Turbo Mini Forums

I don’t know, I couldn’t face taking the engine out this afternoon.

I will have to get it out, ball ache. The car was smoking a bit so I guess there is more going on than the tooth...

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

reverse straight cut tip ? did you accidentally put it in reverse at some point?

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Not that know of Robert. The old girl was smoking so I think it’s engine out time and find out what’s missing bits and why it’s smoking so bad.

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

I recon it could be a dog tooth.

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

Yes sorry Jonny I missed your post. I will need to pull it apart and have a look

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

Hi all, so the motor started smoking. I have completed a compression test and compared it to the results last year, I would love to know where to go from here.
Both were cold readings. I was starting to think about pulling the motor, maybe the rings didn’t seal when it was build fresh last year. It’s done about 1500 miles including a track day. Should I do anymore testing before I start pulling the motor?

May2017. May 2018 / oiled
11.9 11.4/12.0
11.2 10.95/11.4
10.4 10.5/11.0
11.2 11.2/11.9

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

So I did the rope trick on the exhaust valves and I have installed some stem seals. This stopped the smoking.
I also took it to my local rolling road dude and had a leak down test 1 and 4 =6% 2 and 3 = 10%. We checked the emissions and they looked ok. We tried a cold-ish start and had a look in the notes with a snap-on bore scope doofer and it all looked ok.
So fingers crossed it was the exhaust valve guides being a little loose.

Fingers crossed

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

The variance in cylinders as they I notice on mine. I just think it’s these old engines. Cold compression readings are all over the place, but hot readings after a good hard run and they’re all pretty similar.

what about the box ?

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

It was a bit of dog tooth, I presume from an over zealous gear change, it hasn’t crunched so I thought I would leave it. Maybe a bad idea but time will tell

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!