Morris minor 1275 Turbo Breathers
Turbo Mini Forums

Hi, I have a Morris minor with a 1275 Turbo engine fitted.

Have had trouble with oil leaks from the rear crank oil seal, I had fitted the MOSS rear seal kit but now see this was a mistake and will be re-fitting the original scroll seal eyebrow piece.

It is rebuilt engine, was run in correctly and has done around 2-3,000 miles, runs spot on, compression tests OK.

I have made a breather box and added 4 large breather pipes (30-35mm) x2 from the rocker cover, x1 from timing chain cover (steel mesh removed) x1 from where the distributor should be.

I still have an oil leak, and thinking a re-design of the breather system to create some vacuum in the crankcase is needed.

Does anyone have an inline/rwd forced induction A-series that I could speak to, or give me abit of advice of how they run theres please?

I have some photos I can add if I can work out how to do it
Thanks

Sorry you will always have a leak. Good rear main bearing tolerance helps, but at any serious boost level it will leak a bit. I tried the various rear seal kits to no effect. I have roughly the sme breather setup as you, and run 23 psi of boost.

'Where does the engine go?'

How large is the outlet on the breather box? Any photos of the set up

I recall seeing somewhere that the tolerances on those seal kits can be a bit loose. I have been trying to recall where I saw it discussed. Think it might have been on a frog eye, rather than a moggy. There was a solution that didn't involve going back to a scroll

HOSS

GT1752 on Matty manifold, Full race head, Forged pistons, Ph1 cam, 8:2 cr, 1.5 rockers. Street and strip. NOS on the strip.

'Where does the engine go?'

Own the day

About 230 bhp plus 70 bhp from the NOS

'Where does the engine go?'