Sleeving pushrods
Turbo Mini Forums

what do people use to sleeve the pushrods?

would alloy tube suffice?

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

a tube,

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any material in particular?

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

TITANIUM!!!!!!
Regards
Dave

one head that passed through my hands was done with mild steel tube

I've seen the future and tbh its Pie

OH! have you broken through joe ?

cast or mild steel will suffice

aim for 0.002" interference fit

I assume the reason for sleeving is to reduce flex in the rod?

How do get the sleeve on if its an interference fit, as there is a cup one end and a ball on the other?

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

not me steve, just got this:

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...07147&rd=1&rd=1

needs a bit of tlc

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

Ah I get ya! :$

Thought that sounded strange/impossible. Lol

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

Mine were abit small on the i/d of the sleeve.So had to grind the ball end of the pushrod down a bit to get them through the head........
Quite commen according to mr vmax

Edited by Dangerous on 17th Jan, 2007.

Metro turbo weekend driver,Mini turbo in the making again!

i saw that thread when i did a search, what material were the sleeves in yours?

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

mild steel,the top is counterbored/chamfered to aid the oil going back down too

Metro turbo weekend driver,Mini turbo in the making again!

the sleve needs to be reasonably thin walled

because of the angle of the movement with the valve train ....push rods

so they dont catch the insided of the sleve

1mm wall thickness is just right in my book

Edited by BENROSS on 17th Jan, 2007.

when my big 1380 head was done we broke thorugh in the inlet, but we got some copper pipe then silver soldered it in then drilled it out , that worked a treat

always looking for them bigger bunches of bannanas

I don't understand why engine builders advertise with slleved pushrod holes. THEY ARE ALL SLEEVED FROM THE FACTORY on 940 heads.
If you break through the factory sleeve while porting, you're doing something wrong.

still, better than a hole in the port...

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

Why have you got a hole there?

i see what youre getting at vegard, some tuners advertise it as a performance mod when basically it is just a repair.

but is it really this big a deal?

"Turbo's make torque, and torque makes fun"

"did you know you can toast potato waffles?"

I think vegards getting at the facyt the940 casting doesn't really need to be taken out that far between the push rods, the 295 with its smallr valves even less so IIRC.

is that actually a 295 casting? i thought 295's didn't have a solid manifold face or were able to take 1.5" inlet valves

Vegard,
Is it a sleeve or is the pushrod hole bored to two different diameters?
Regards
Dave

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Are you for real? I pressed one out once, but I have never tried later on because I have never needed. to. I stand corrected in that case. but there's still no need for sleeves :)

All the 7 940 heads I have in my garage are counterbored as Carl said above.
Maybe the earlier ones were sleeved
Regards
Dave