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Timing cam in situ

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Timing cam in situ
tomcotez Offline
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#1
13-01-2021, 10:38 PM
Is it possible to time a new cam with the crankcase already in the chassis? It looks possibly to fit a smallish timing wheel on the crank gear at the front. The reason for this is that I am waiting for a cam to arrive and could get on and bolt other bits together, set up clutch etc without losing too much time. Is there a minimum diameter for an accurate timing wheel?
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Zetomagneto Offline
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#2
13-01-2021, 10:52 PM
Bigger timing wheel is more accurate, worth the wait I would say. Do you have an adjustable cam gear, if not how do you propose getting it spot on.
All easier on the bench.
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Ncoates Offline
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#3
14-01-2021, 10:19 AM
why not rebuild the gearbox or back axle whilst you're waiting.... Big Grin Wink
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tomcotez Offline
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#4
14-01-2021, 12:12 PM (This post was last modified: 14-01-2021, 12:13 PM by tomcotez.)
not sure I'd still be married after that. I'm already in trouble for putting degreaser down the sink and heating up flywheel in the oven...
I have a stepped key, was going to play with that on the cam or crank gear, but may have to get an adjustable gear if that doesn't work.
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Charles P Offline
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#5
14-01-2021, 12:56 PM
(14-01-2021, 12:12 PM)tomcotez Wrote: not sure I'd still be married after that. I'm already in trouble for putting degreaser down the sink and heating up flywheel in the oven...


I heat treated a silver silver steel cutter on the shelf below a pizza last week.
However the flywheel ring gear was done when I knew that I wouldn't be disturbed/discovered.

c
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Hedd_Jones Offline
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Car type: '28 GE Cup. '28 AD Chummy '30 RL Saloon. '34 RP Saloon. Too Many toys!
#6
14-01-2021, 04:07 PM
I work on the principle that I paid for and installed the cooker/dishwasher/freezer/fridge so I'll do whatever I like with them.

Last night I had a Halfords ratchet spanner warming gently on the gas, I've just bought it in a set and it appears that it had been put away damp and was stuck. A little heat and a bolt in the vice and it came free quite easily. No heat and plus gas had no effect.
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Reckless Rat Offline
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#7
14-01-2021, 04:42 PM
(14-01-2021, 04:07 PM)Hedd_Jones Wrote: I work on the principle that I paid for and installed the cooker/dishwasher/freezer/fridge so I'll do whatever I like with them.

To take a line from the film "Ben Hur".... - Bravely spoken!
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Renaud Offline
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#8
14-01-2021, 05:21 PM (This post was last modified: 14-01-2021, 06:09 PM by Renaud.)
Yes, but try that line on my wife...
All those interesting marital considerations won't much help Tom to time his camshaft though!
http://tricyclecaristes.1fr1.net/t1032-le-sandford-de-mon-pere
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tomcotez Offline
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#9
14-01-2021, 07:02 PM (This post was last modified: 14-01-2021, 07:02 PM by tomcotez.)
    Pie wheel
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Charles P Offline
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#10
14-01-2021, 08:08 PM
(14-01-2021, 07:02 PM)tomcotez Wrote: Pie wheel

Is that to try and bolt it on whilst still hot?

What torque did you use?

c
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