Straight Cut cam gears

[912uk]

Yes I ment full flow systems ( well almost full flow ) but much better anyway.

Yes I agree some of the additives are missing and it does change things alittle I used to do some work with oils for the generators and the large Allen's and the Cummings units.. I used to send off the oil at oil changes to get a full break down so I could monitor the wear. That all went out the window when I left and then 14 months later all 6 Allens engines running 72" pipe work for the pumps got wiped out and the lot had to be rebuilt.. ask Scout40 we flooded his house ( but I had left by then.. )

Honest!!

[40 scout]

I still blame u lot tho Mark

[Winston Teague]

I must be approaching my first oil/filter change and have ben reading this with interest. I'm nearly 3000 miles in though it has used none and it is still reasonably clear. What oil and what interval?
Winston, daily use '61 BT5

[912uk]

well with oils it's a different type I would say at different times

what I mean is if the engine is new and you know it from new then you can use a semi oil but you will need to talk with Mike or Andy on the grades. You would use a mineral oil for running in on.. Well w certainly did with any engine rebuild we did with the diesels. I am sure it's the same with these air cooled..

If you don't know what the condition of the oil is eg no history then I would be a little weary of modern oils as it could clean the engine ( as most modern engines do, trouble is it's going to put it all though the oil cooler, bearing and other nasty area's for catching all the built up crap.. so get some advise from Andy or Mike on oils for an older engine rebuild. I know what I would use but then it's my engine..

If I have not idea of an engines past and I am running it then I use straight 30 till I have time to take it down alittle to have a look. Abit extream but I know where I stand with that oil..

as with any subject like this different people will have different views






Oh and Scout40 ... yeah er I had defo left by then... I must admit to being very cross when I had heard it happened, because of all the people in our team did say some thing could happen if money is not spent in certain area's and contractors with drills are not kept under control...drilling holes all over the place and just using expanding foam to keep 30,000,000ltrs of water back yeah right you did get a nice new garage floor out of it..

[Ren]

Mark, I thought you had got a CSP alloy pulley? Any way my 2 hole OT one looks good - no damage so offers on the table please...

Also the question about 2nd under and treating the crank after. Well I did read, I think it was a Vic Skirmants article about entry level racing and he said do not do anything to effect the metals molecular structure such as chriogenic freezing or hardening. Sorry about the bad spelling.

What do the beetle boys say?

Im sure what ever they have been doing for the last 50 years is perfectly ok for tub cranks. Its not like there is much of a difference. I mean just look at the VW badge on your cam gear. Not mine as it dont have one any more. Nice new boots and panties modern computer CNC milling and metal manufacturing process on that please and all for just an extra £90.

Mark, how about an SC/912 cam then? Come on every one its a 912 bits blow out. Come get dem.

Mike, how much for my 912 heads with valves, springs etc all fitted?
and has Paul got in those Anodised GT inspection covers yet?



Dave Ren

[Mike Smith]

Sorry Dave you will have to talk to Paul on both issues - Out of the country for 3 x weeks

What are you doing about Valves ?

Have you checked the prices lately?

Mike

[Ren]

I got the crank back. It passed without any cracks and was ground to first under. Next I have to sort out a Kennedy pressure plate for 180mm and then get the flywheel surfaced and all balanced up.

Mike, I got late S90 heads and porsche valves and what I thought were porsche exhaust valves from stoddards but I bet they aint porsche. Thats why I have a set of 912 heads for sale with valves etc in place. I know that the S90 heads will make car difficult on the roads but Im not going to use it every day any more so its for special days out to tracks or show and tell events.

The S90 heads could do with new guides and one seat needs grinding down slightly as its a bit pitted. Im getting there slowly and I hope to have the old bitch back on the roads around October.

Dave

[Ren]

pic of engine as it is now.
waiting for flywheel to be balanced to crank at the moment.