Camshaft bush removal drive side.

Previously George Phillips wrote:

Ive recently had to remove the inlet camshaft bush on my ES2, Andrew, and did it by placing the timing cover in a hot oven for 20 minutes or so then tapped it out. If your one is a"blind" bush it should come out with the slam dunk method. Best to use a cooking bag unless you want the kitchen to smell of Castrol Casserole for a week. George

Thanks George - cooking bag a very good idea, wish I thought of that yesterday, wife a little bit quiet today. What gas mark did you use? i took it upto 6 and no luck after 1/2 hour.

Previously john_holmes wrote:

Another option is a coarse threaded tap with a correct nut plus washer, screw the nut onto the tap all the way one followed by washer a short length of tubing that the bush OD will fit into , screw the tap into the bush a couple of turns to get a grip and then wind the nut down and it will draw the bush out inside the tube.

Thanks John, looking that way I think.

Previously john_holmes wrote:

Just been thinking a bit more, if you put a smaller washer/disc in the bottom of the hole to protect the alloy you can screw the tap in without the nut/tube/large washer and once it bottoms out it will pull the bush out.

Hello John,

that is an interesting plan, while waiting for a suitable tap, I have tried to solder a piece of tube in place, with a washer behind with bolt and nut to use as a jack, solder did not take, but trying epoxy. I don't expect that to work either but will try while waiting for a tap, tricky size as it turns out. I am beginning to appreciate resolving this kind of snag is one of the pleasures of getting an old brit back on the road.

Previously George Phillips wrote:

Sorry Andrew , I can't remember but there is more about it on this site. Look under camshaft removal. George

Thanks George, it seems that if the bush does not come out with gas 6 and 30 mins, then it is out with a hack saw. Hoping to avoid that, but obviously these were not what you might call service items. Onwards..

Previously Andrew Wibmer wrote:

Previously George Phillips wrote:

Sorry Andrew , I can't remember but there is more about it on this site. Look under camshaft removal. George

Thanks George, it seems that if the bush does not come out with gas 6 and 30 mins, then it is out with a hack saw. Hoping to avoid that, but obviously these were not what you might call service items. Onwards..

Its out, for those who need to pull this bush, I made a small extractor with a piece of 1" copper pipe, 3 penny washers, 5*50mm bolt, three nuts, and an old valve spring (though I don't think that was needed).

I have attached a very simple drawing of the extractor but in essence I epoxied a short length of copper tube inside the bush, with a washer at the head of a bolt behind it. Waited three days for the resin to harden, then with a combination of valve spring and spacers to stand the spring off, and allow the bush to rise through, the bush came out as the spring was compressed. A very rough sketch attached, and if anyone wants one, I will try to photo later - not my strong point though.

Attachments
navigator-camshaft-bush-tool-png