so you think grinding only on the casing. I have ground a fair amount off & wondering if i am going to have a hole soon

_________________
1275

In my case the problem was the 3mm extra stroke & Chevy big end nuts, these are plain hexagonal and a little bit taller than S nyloc ones. But they miss the Mini-K 4 synchro case with no mods needed.
If you do grind through, it's not the end of the world- I once cut 4 holes in the front of an early 850 case so my 1275 crank with big journal rods would swing.
Just TIG weld some sheet on if you have to, but a standard stroke 1275 should be made to swing without going through a 22G68 casing.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

not araldite???

_________________
did I tell you that I won a trophy?

Well... 30 years ago I cast new lumps on using araldite and masking tape, these days a MIG or TIG is the go.
This one of GR's has the latter.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

I am wondering about the breather on the fuel pump hole. The addition of a tube on the inside of the hole aimed in a different direction may be a solution. You don't need to have the breather right next to the cam you could aim it anywhere.
A motor on a dyno would be a good place to test it.

I reckon design it with a baffle on end of tube inside the block, that lets the oilz drip off.
Mine was just an S breather canister welded to a flange... as I said, was a waste of time.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Yeah, a baffle plate over the hole or something to just stop the direct stream of oil going into the breather.

A mate had a 186 motor in a Sports Sedan that had a con-rod let go and it punched a nice hole in the side of the block. So he cleaned up the hole and pressed in a bit of pipe, instant breather!

And? What were the results. didn't make it as we added a few mini's to the family

_________________

Yes I want to know also..and Aaro Spil the beans

_________________
Stop Licking the Dog...I Don't Care Who Started It

Full results are now up in cruises and events, see http://www.ausmini.com/forums/viewtopic.php?t=37989

dyno sheet-

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

congrats on the great result
Would have been a fun day.
How much running/bedding in did you do other than the 15 min to bed in the cam prior to the power testing

_________________
1275

Good results - looks like the SU wins

_________________
David L


My greatest fear in life is that when I die my wife will sell my Mini and tools for the price I told her I paid for them!

On Saturday morning we ran it in at varying loads and rpm for 30 or 40 mins.
Then we retightened the head, readjusted the rockers to .020", and did the power runs.
During the power runs we tried closing the rockers up to .016", and it immediately lost 7 ft/lb of torque at 5,500 and 6000 rpm...
Note these are not stock rockers though, they are Corollas- 1.46:1.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

.004" made that much difference!
Just goes to show how important the valve clearance is.
Have to remember not to be tempted to close it up to quieten it up.
what effect did it have at the lower rpm range?

_________________
1275

At 4500 it had lost 5 ft/lb, at 5000 had lost 7 ft/lb.
I was going to try them at .018" too, but got sidetracked...

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.