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supercharged 850
PostPosted: Tue Jan 09, 2007 10:59 pm 
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I need a bit of help finding out what this camshaft is.

I removed it from, what I believe was, a 'slightly' worked 1310 engine.

The only thing I can measure is the lobe dimensions and the duration (roughly) but I dont think it is enough info to determine the exact camshaft spec.


It has 1/2 inch lobes and a spider drive.
The timing chain end has 113 stamped in it.
There are no ribs or other identifying marks on the camshaft.

SO from this information, I would guess that it was just a standard cam to begin with.

BUT

Every lobe has between 7.13mm (0.280") and 7.18 (0.282") of lift ....... which seems pretty high....

And as far as I can tell, it has around 285 degrees of duration. I only measured this on the second cylinder though....

From my charts, this seems pretty close to a 544 spec camshaft.

Is this a good enough guess? Or do I really need to measure some more things (ie: to find out if it is a scatter pattern, or some other measurement)????

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[NATHAN] -- Sold everything mini related and am back in big beautiful BMWs
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drmini in aust
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PostPosted: Wed Jan 10, 2007 5:50 am 
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Location: near Baulkham Hills, NSW
It has been reground.
Could be a Wade or a Tighe cam but neither lists a 113, and both their 112s have lots less lift..

OTOH, don't always believe the stamped numbers- I have an 1100S cam stamped 544 but it's nowhere near that works cam spec. :wink:

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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. :mrgreen:
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supercharged 850
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PostPosted: Wed Jan 10, 2007 11:08 am 
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I didnt believe the stamped number at all.


I guess the only way to find the true spec is to have it fitted to an engine and measure it off all 8 of the the pushrods......

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drmini in aust
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PostPosted: Wed Jan 10, 2007 1:06 pm 
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You can just throw it in a block with a crank and degree wheel, then use a dial gauge on #1 inlet and exhaust pushrods.

The question then is what lost motion do you allow to simulate rocker clearance, and what would that have been anyway. :lol:

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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. :mrgreen:
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