11-06-2018, 06:32 PM
(This post was last modified: 11-06-2018, 06:34 PM by Colin Wilks.)
[quote='jonblob33' pid='11087' dateline='1528030709']
Having found 50% of my cam gear missing has anyone changed the timing gears with the engine in situ?
Hi Kevin,
I did my timing gears with the engine in the car, although I had the sump and gauze off, the head off and the valves and radiator out, so could remove and replace the camshaft without difficulty (my camshaft bush locating bolt is a hex head rather than the original square headed job that can’t turn without lifting the block).
Assuming you don’t intend removing the camshaft you may be lucky after fitting the replacement gear and end up with the correct endfloat (.002”), but if not you’ll probably need to get the camshaft out to adjust the bush.
My original objectives were just to realign the radiator cowl, clean out the sump, unstick the valves and replace the core plug on the front of the block. I then discovered a broken tooth on the timing gear after lifting the dynamo housing. With hindsight it would have been easier to have had the engine on the bench from the off, so I would bite the bullet and see this as an opportunity to check the whole thing. Removing the camshaft means you can lap the new gear onto it without risking getting grinding paste in the bush, plus you can confirm the camshaft’s location fore and aft is correct.
Having found 50% of my cam gear missing has anyone changed the timing gears with the engine in situ?
Hi Kevin,
I did my timing gears with the engine in the car, although I had the sump and gauze off, the head off and the valves and radiator out, so could remove and replace the camshaft without difficulty (my camshaft bush locating bolt is a hex head rather than the original square headed job that can’t turn without lifting the block).
Assuming you don’t intend removing the camshaft you may be lucky after fitting the replacement gear and end up with the correct endfloat (.002”), but if not you’ll probably need to get the camshaft out to adjust the bush.
My original objectives were just to realign the radiator cowl, clean out the sump, unstick the valves and replace the core plug on the front of the block. I then discovered a broken tooth on the timing gear after lifting the dynamo housing. With hindsight it would have been easier to have had the engine on the bench from the off, so I would bite the bullet and see this as an opportunity to check the whole thing. Removing the camshaft means you can lap the new gear onto it without risking getting grinding paste in the bush, plus you can confirm the camshaft’s location fore and aft is correct.