MSD clone dizzy pissing oil

[gerg 10,871]

As title says, MSD type billet dizzy has oil coming out from the guts (not from base). Anyone seen this before, and are the shaft seals easy to get?

[Trev Vaa 1,185]

lmfao i have never seen this before, but i want to!

 

just buy a proper dizzy and dont look back.

 

and where is it coming from exactly? the drive shaft?

[gerg 10,871]

It has a vent hole under the pick-up area. I suspect it's from the shaft. It's trickling out of there down to the block where it mounts. I have a feeling it's got something screwy going on with the drive gear, as you can rotate the shaft a good 5 degrees (10 crank) which would explain it backfiring and lacking power lately. It's a very early MSD copy using genuine internals, about 18 years old but done 3/5s of stuff-all work.

 

Might be a sheared roll pin. I'll rip it out tonight after the monkeys are in bed.

 

And yes I would like a genuine MSD and there's a whole lot of other things I'd like too.

[RAWDEAL 222]

It has a vent hole under the pick-up area. I suspect it's from the shaft. It's trickling out of there down to the block where it mounts. I have a feeling it's got something screwy going on with the drive gear, as you can rotate the shaft a good 5 degrees (10 crank) which would explain it backfiring and lacking power lately. It's a very early MSD copy using genuine internals, about 18 years old but done 3/5s of stuff-all work.

 

Might be a sheared roll pin. I'll rip it out tonight after the monkeys are in bed.

 

And yes I would like a genuine MSD and there's a whole lot of other things I'd like too.

how about a complete rebuild, because the chinese copy stopped driving the oil pump lol ? 

[gerg 10,871]

If it stopped driving the oil pump, then it will have stopped driving the spark, and it's a bit hard to fuck an engine when it's not running.

[RAWDEAL 222]

If it stopped driving the oil pump, then it will have stopped driving the spark, and it's a bit hard to fuck an engine when it's not running.

not unless the inner hex in the dizzy rounds off lol

 

to many nightmare stories around about chinese engine parts man just trying to help haha

[gerg 10,871]

Yeah I know I'm the first to rubbish shit parts, I fucken hate cheap.copies, but as far as knock-offs go, this is not a bad piece, uses genuine internals. Possibly made here not sure.

 

Pulled it out and found roll-pin nearly non-existent, dizzy gear flopping around like a cock in a sock. Not surprised seeing how much oil pressure clevos run. Will strip down tomorrow and check for further damage. Might have gotten away with it for now.

 

Hex drive looks as new. Decent steel in that bit at least.

[Trev Vaa 1,185]

thats not nearly as climatic as i was hoping for, i had pictured you taking the dizzy cap off, cranking the motor, and having oil spray you in the face.

[gerg 10,871]

Lol yeah that might be funny not so much at the time but maybe a month later or something after I've calmed down

 

Anyway it's enough oil to piss me off by leaving a spot on the driveway.

[gerg 10,871]

Turns out there's no seal inside. Relies purely on gravity to stop oil coming up the shaft, with a sealed ball race at the top end, bronze bush at the bottom.

 

I think my engine breather is a bit chockers, ends up pushing out oil vapours from the next easiest orifice... The dizzy shaft.

 

So I knocked a new roll pin in and shoved a thick copper strand of wire inside it to prevent it crushing. I've heard of knocking another smaller roll pin inside the big one for strength but I want it to shear off if it has to, not make more carnage elsewhere.

[Stu5766 394]

You would think that if there was that much crank case pressure, it would spew out the dipstick????

[gerg 10,871]

Yeah I know but nothing is normal in my world. I think oil will find a way to leak out of my radio one day