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Phase two of Clubman Project "Twinky"
https://www.ausmini.com/forums/viewtopic.php?f=5&t=77313		 Page 5 of 19
Author:  TheMiniMan [ Sun Aug 12, 2012 4:28 pm ]
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ok,,, well ,,, if i were to "design & make" one for myself,,, to be honest i wouldn`t make it so there`s a pool of oil swishing around inside the thing, but still you need to work with what you have right?

but i`d probably prefer something like a radiused (radiied?) swoopy bit that lets any oil that splashes onto the dam thing just rolls back outa there back down into the box, so a piece of bent pipe of some sort would be my first lower part/section of arrangement... the trap it from there... just don`t forget that any trap needs to be higher than where you`re fitting your drains... drains fit into it lower than the trap itself or you have trapped oil ,,, & made it fling around & get pumped up with crank case pressure

& yes a good piston ring seal should cause very little crank case pressure (before anyone starts this one again) but still,,, it`d be nice if were all lived in a perfect world hey? ;-)

i`ll take some pics of my drains during the week
Author:  dalmeny [ Sun Aug 12, 2012 8:10 pm ]
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Thanks Matt, I'm really trying hard to picture that set up. I'll move on and come back to that before the block goes for boring. Your drains into the block might just go a long way to solving these issues.

Got a little bit done today. Fitted up the top plate with two locating dowells and two additional 6m contersunk screws into the lower flange. Also knocked the two locating dowells out of the BMW cam chain cogs and knocked them into your cam pully wheels.

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Author:  dalmeny [ Sun Aug 19, 2012 10:09 pm ]
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Now have the cam cover cut. Wanted to get it right so I thought I'd go to the experts. The Engineering shop wanted to put in their mill and charge me about 2 or 3 hours. Option 2 was a large, alloy semi trailer builder who had a super band saw, but they weren't keen incase they stuffed it. Option 3 I took it home and carefully cut it off with a hacksaw.

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Also had a fit up of the bottom plate to make sure everything fitted.

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Author:  MG Rocket [ Mon Aug 20, 2012 8:12 pm ]
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dalmeny wrote:
Option 3 I took it home and carefully cut it off with a hacksaw.

:lol:

Well done ....it's amazing how sometimes we overcomplicate things.
The simplest and best thing is sometimes right in front of us but just can't see it.
Author:  braad [ Fri Sep 07, 2012 12:22 am ]
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excellent work. Motivating!
Author:  dalmeny [ Sun Sep 09, 2012 1:19 pm ]
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Well, believe it or not the oil return breather system is killing me.

After all the advice I recieved above, I came up with this. It is baffled inside

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Then found it was too busy around the lower radiator hose. So, Matt here is the next version :twisted:

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I'll work on the breathers seperately. If this is the way I go the the hoses will be S/S Braided.

Omega pistons should be here by Thursday, so went and had a chat to GR about boring and balancing. Which led to two other things to think about. One, not using the small bore cam with the pin drive and two, possible use of H-beam rods.

So I looked at the following.
http://s362435279.e-shop.info/shop/cata ... ?aid=SC068

This comes with the groove in the front journal for full flow to the head and slot for A+ oil pump.

Q. to fit the A+ pump to the 1100s block does it only require one new hole drilled and tapped?

Q. Now for the rods, would anyone basically throw away S rods just to have H-Beams?

Whilst we are on rods I notice that when you look at the side of the S rod the rod is not centre to the big end. Is a H-beam the same????
Author:  Kennomini [ Sun Sep 09, 2012 8:37 pm ]
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So you ended up drilling and tapping straight into the oil galleries in the block?
Author:  dalmeny [ Tue Sep 11, 2012 9:44 pm ]
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Pistons arrived.

Ordered on the 4th
Left GB on the 5th
left Paris on the 6th
Left China on the 7th
Landed in Sydney on the 8th
Delivered on the 10th

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Author:  dalmeny [ Tue Sep 11, 2012 9:49 pm ]
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Kennomini wrote:
So you ended up drilling and tapping straight into the oil galleries in the block?


The return from the front of the head drains into a large gallery that free falls straight into the crankcase. The two lower one's are tapped in just below the old cam follower holes.
Author:  Kennomini [ Tue Sep 11, 2012 9:55 pm ]
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Is their any concern that these extra holes may weaken the block at all?
Author:  kuzzy [ Tue Sep 11, 2012 10:08 pm ]
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I'd stick with standard rods unless you are going 8000+ revs all the time. My race cars have standard rods and I try to keep revs below this but have hit 9000 rpm in my short stroke engine on numerous occasions.

Saying that the next rebuild I'll be going Argo or similar rods in the short stroke engine and will try for some more revs.

But, hey - GR is a guru and if he thinks you need better rods I'd be doing as he suggested!
Author:  dalmeny [ Tue Sep 11, 2012 10:08 pm ]
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Kennomini wrote:
Is their any concern that these extra holes may weaken the block at all?


This is the way Matt Read does it these days. I can't see any point of stress in these locations, but i'm no engineer.
Author:  dalmeny [ Tue Sep 11, 2012 10:11 pm ]
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kuzzy wrote:
I'd stick with standard rods unless you are going 8000+ revs all the time. My race cars have standard rods and I try to keep revs below this but have hit 9000 rpm in my short stroke engine on numerous occasions.

Saying that the next rebuild I'll be going Argo or similar rods in the short stroke engine and will try for some more revs.

But, hey - GR is a guru and if he thinks you need better rods I'd be doing as he suggested!


No, GR wasn't pushing to sell me something, he didn't know I already had the S rods when he suggested them.
Author:  kuzzy [ Tue Sep 11, 2012 10:15 pm ]
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By standard rods i should have said instead Cooper S rods
Author:  kuzzy [ Tue Sep 11, 2012 10:18 pm ]
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Also, do not mean imply that GR is pushing a product etc. Never met the man, would love to one day.
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