OV9

This is how my race weekend ended:




And yes, the silver thing you can see sticking through the sump is a con-rod.

None of your nancy-boy spun bearings or blown head gaskets, that, right there is a *man's* engine failure

Good effort.

A bit of JB weld and that’ll be good as new...

You need a Rodney sticker!

https://mightycarmods.com/products/rodn ... on-sticker

Could that have happened because the g-forces on the reverse direction laps were starving the oil pump?

NotoriousREV wrote: Mon May 06, 2019 9:52 am Could that have happened because the g-forces on the reverse direction laps were starving the oil pump?

Cause was a wallop on the floor, which hit the fly wheel. Crank snapped and everything else made a bid for freedom

NotoriousREV wrote: Mon May 06, 2019 9:52 am Could that have happened because the g-forces on the reverse direction laps were starving the oil pump?

Dry sumped with external oil reservoir so that’s not a problem.

Oh and you forgot the bit where we found a gudgeon pin in the under tray.

Yikes

Whole new lump Nef or might you get away with new bottom end only?

mik wrote: Mon May 06, 2019 11:30 am Yikes

Whole new lump Nef or might you get away with new bottom end only?

We'll just have to open it up and find out. The head *might* be salvagable, maybe the cam, hopefully the oil pump. TBH, it's not going to be far off the cost of a whole new lump

Dam! Air at the chicane was it?

When you fix it, paint the block a different colour. It was tempting fate

nuttinnew wrote: Mon May 06, 2019 12:28 pm When you fix it, paint the block a different colour. It was tempting fate

Hows that then?

scotta wrote: Mon May 06, 2019 12:55 pm

nuttinnew wrote: Mon May 06, 2019 12:28 pm When you fix it, paint the block a different colour. It was tempting fate

Hows that then?

Engine blue, engine blew. I know it makes no sense, especially as the cause was without not within. Better use water based paint as well for some homeopathic help.

Anyhow; ouch

Yep hitting the flywheel would do that

Crappy luck but how is your spine? Must have been a good whack.

Dave!

Nefarious wrote: Mon May 06, 2019 10:23 am

NotoriousREV wrote: Mon May 06, 2019 9:52 am Could that have happened because the g-forces on the reverse direction laps were starving the oil pump?

Cause was a wallop on the floor, which hit the fly wheel. Crank snapped and everything else made a bid for freedom

Foz wrote: Mon May 06, 2019 12:11 pm Dam! Air at the chicane was it?

Yeah, even if you hit it perfectly, it goes light enough for the rears to break traction and flare the revs.
The thing that really does the damage is the right-hand sausage curb in the middle of the car...

What ride height do you run?

Nefarious wrote: Mon May 06, 2019 11:36 am

mik wrote: Mon May 06, 2019 11:30 am Yikes

Whole new lump Nef or might you get away with new bottom end only?

We'll just have to open it up and find out. The head *might* be salvagable, maybe the cam, hopefully the oil pump. TBH, it's not going to be far off the cost of a whole new lump

In my experience, if it’s that bad, you’re better off keeping the few bits that are still good as spares/flog them and just get a whole new engine. You’re back to a known good point then, rebuilding 90.%+ of an engine only for an old part which looked ok to then go bang is a very painful experience.

Foz - 42mm front, 50mm rear

OC - that's a fine theory when you're dealing with new-ish stuff. In the case of a Kent, there are no new blocks, and the "new" heads come with some serious question marks, so the received wisdom is to machine from known-good old stock. I won't reused anything that's been damaged, but imo I'd rather re-use known good bits from my engine than spin the wheel on someone else's secondhand stuff or the questionable quality remanufactured skyford shite.