7 porter progress, Engine build Number....seven?? ....now K1200
Turbo Mini Forums

WAHOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

Cool ! I look forward to seeing this.

WWW.TURBO-MINI.COM

dont expect tooo much lol, its looking a little lived in now.

i guess i should treat it to its anual wash though...

also i'll be aiming not to break it, i need to get to work on the monday!

you car abusing wimp

yep!

I'll look forward to seeing it go up he strip, and glad that i'm not in it!

Make sure you come and find me so I can give you this VNT of yours.

In the 13's at last!.. Just

will do, :)

mmmm sequential vnt's lol

well, for anyone that saw me at MITP with it in bits due to a stuck ex valve....

pulled the head today for a look....

ooh fuck

yep, i guess the valve must have gone tight in the guide, no marks on the stem though, bit of a thwack to the piston, but it will be ok.

the valve seat is not marked, (phew)

Very lucky call....could of been alot worse

Ouch,

Looks like it stuck once, then rotated slightly after the head was bent (from the double indentation at the top of the photo).

Was it free again once cold, or was the stem bent on the working part (inside the guide) making it permenantly stuck ???

I suggest you go all the way around the top of the piston with feelers (down to the first ring) just to make sure the ally hasn't "spread" in that area.

Schrödinger's cat - so which one am I ???

yikes.good save joe.

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

D'oh!!

sturdy old valve!

If Carling made Mini engines
it would probably be like this one!

Good idea Rod, i will check to see if there is any "spread" to the crown.

the valve had unstuck once cooled, would go down, and return but not all the way (obviously)

I pulled no 3 exhaust too and tried that in the guide, it can be felt that no No 2 guide is slightly snugger, so i think its all down to reaming to the proper size.

i did ream at easter, but the reamer was shite, and didnt want to remove anything.

What is the concensus on reusing the guide?

Schrödinger's cat - so which one am I ???

9/32"

I assume that's your size ???

I bought this (ages ago) when I fitted bronze guides to my Dolomite Sprint head but have used it since on a set of new Mini cast iron guides - yes, even cast iron guides squash down a bit when you press them in - and it was certainly good last time used.

You're actually better off using a good "used" one on bronze, a brand new one will tend to dig in and give a serrated finish.

(edit - grammer)

Edited by Rod S on 23rd Aug, 2009.

Schrödinger's cat - so which one am I ???

Harsh, but at least it looks savable.
Shane

Looks like you were very lucky there Joe!

It's still so strange that this happend on the first run on the strip afters thousands of miles on the road.

In the 13's at last!.. Just

Your very lucky that neither the valve or piston failed, could have been very expensive.

don't i know it...

Cheers for the offer Rod, I'm going to someone who does turbo heads to give it the once over for peice of mind.

So how is one of the best cars on TM? Is the head back on?

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse