Ford Zetec Undercrown cooling jets
Turbo Mini Forums

SO. Why haven't anyone tried drilling a hole in the centre main or the other mains that goes from the oil gallery, pointing towards the pistons? If we drilled a 1mm hole here, this would do the same job. Anyone seen this done to Minis? I've seen it done to other engines.

Found this on a toyota web site.
Grooved big end housing looks good.
Back rod is drilled.
Take your pick
Regards
Dave

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Its VW Beetle stuff but interesting to read:
http://users.lmi.net/~ryoung/Sonerai/HVX_Mods.html
http://bobhooversblog.blogspot.com/

http://bp0.blogger.com/_JU6RC7jJfRc/Rl0iPr.../HVX+ROCKER.jpg

Tazzy, are you interested in homebuilt aircraft?
Did you ever see Bob Hoover fly his routine in the Shrike Commander (on one engine) it was amazing.
Regards
Dave

I'm interested in engineering. I was born and raised near airplanes and cars. My dad used to be a police officer on the airport & drove numerous mini's & a beetle when I was younger. My brother then moved on to Land & Range Rovers. Easy to work on due to size but not as much fun as a mini :)

One of things that stuck with me is how easy the beetle engine is to take apart and how Bob Hoover improved the lubrication.

sure ive seen it in the vizard book.

ive got a block in the garage like it, ill have a look

http://turbominis.co.uk/car/105/

Just went to pick my zetec jets up...cheers for that pic Dave worked a treat..

Just a quickie...whats the best way of removing the jet from the mount without fooking it up completely?

They look/feel fairly fragile!!!

Edited by matty on 8th Aug, 2007.

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1/4mile in 13.2sec @ 111 terminal on 15psi

Firstly - find a piece of tube with an 8mm hole in the end (drill it if you have to). Hold the 'tang' in vice jaws, slide the tube over the body of the jet (the area that'll locate into the block later) and simply lever it off.

The weld holding the tang on is very brittle, so will break cleanly off.

Easy Peasy, Jim likes Flossy. :)

also take note that if you put too much heat into the main body when you weld the locating tang back on you will collapse the ball and spring inside, and it will become blocked,


carl

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

maybe, maybe not,lol.
the two i overheated, wered rilled out so there was no presure releif in it, i am possitive it will not create any problems with lowering the oil pressure,

carl

WWW.FORCE-RACING.CO.UK PLEASE CLICK HERE

http://www.turbominis.co.uk/index.php?p=14&album=686

Uploaded some pics for you guys!!!


Here is the (world) first ever Zetec jet install using the (more difficult to work with) zetec jets that are best ignored.






Here is spot-facing done on the (either Jims, or my own) engine block.





Here is a close-up! Note the largest 8mm hole, then a 4mm or so drilling about 2mm deep, then a 2.5mm or so drilling at an angle towards to main gallery on the front of the engine.





This is how you remove the tang:





Off it pops!

Edited by TurboDave16V on 8th Aug, 2007.

Ah spot on...this will keep me busy over the weekend!! :)

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1/4mile in 13.2sec @ 111 terminal on 15psi

Good pics, i've got a few blocks to convert now.

Can we get this added to the FAQ section as it does come up quiet often

I've seen the future and tbh its Pie

Does anyone have a method of testing these jets once they've been fitted?

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1/4mile in 13.2sec @ 111 terminal on 15psi

Hose Pipe.

I was reading that Tarzwell-fella's book the other day, and he says he once tried to se how much oil the gearbox splashed around. After ten seconds, the gearbox was empty ( drill on the input shaft, no engine) and he spend fourteen days removing oil from all the walls and ceiling in the garage. This means that unless you're running a windage tray, undercrown cooling jets are an absolutely waste of time, maybe with the exeption of #1 cylinder. Yes, there I said it!

There you are fellas - we've all been doing it wrong. Vegard said so.

Although I think it's a desperate attempt from a jealous man who hasn't got any jets...

he is trying to make me machine the block for the jets for him. I have resisted so far, and now he doesn't want them anymore by the sound of things:)

He has borrowed the Tarzwell book from me though, and Tarzwells is a legend and worth listening to. Vegard has a valid point, but as I am running with a tray I will install them.

No I'm not saying it's right, I'm after a discussion. You agree, there's bound to be LOADS of oil being flung up by the gears, also proved my Mr Tarzwell. I'm fitting jets, but i'm also going to use a windage tray.