quick question on replacing camshaft on Farmall B

Chendow

New User
Hello all,
I've tried to spin/rotate the front cover out of the way so I can access the camshaft gear and retainer, but the governor drive gear is preventing it. If I pull out the distributor will I be able to rotate the front cover enough or do I have to pull off the crankshaft mounted belt pulley?
The pulley doesn't appear to be the bolted on style so it's probably a press fit. How hard is it to remove without a puller? If a puller is required will a 2 or 3 jaw puller work or is there a good chance I'll damage the pulley?
Here's a few pictures https://imgur.com/a/I32lqS7
I did remove the valve cover and rocker arms after taking the pictures.
pictures of the engine
 
get that pulley off and front cover. you need a brg. splitter to pull the front pulley or you will break it with just a puller.
 
You should replace the oil seal on the crank shaft when you have the pulley off. It is easy to break the pulley if you are not using the right tools.
 
I tried to find some specs on the HF puller you linked but I didn’t at least not with just a quick attempt. The idea is to be able to have the crank pulley OD fit in the recess of the splitter. The silver thing on the right in the case. Just comparing the size of that to the hand hole in the case that one is not big enough. Just wanted you to be aware if you are ordering it and not making a purchase at a store.
 
there are timing marks on the gear and the cam the single mark lines up with the single on the crank gear the two marks on the cam will line up with the two marks on the gov gear they must line up or the cam will be out of time wiht the rest of the engine. Is there a reason to replace the cam. You will also need to remove the pan and the oil pump a it rives off the cam and the cam will not come out until the oil pump is removed. How are you going to pull the cam when the lifters will not allow the cam to be removed. You can remove the engine put it on a stand and with the engine upside down the lifters can be up letting the cam free which also means the lifters and pushrods will need to be removed. NOW the reason for replacing the cam as there are no bearings on the cam to replace so why are we removing the cam as it cannot be removed till the engine is taken apart you have a project thats more than you were counting on let us know why replacing the cam
 
Thanks all for the input. I had to replace the cam and oil pump because the previous owner stripped half the teeth off of the cam and knocked out a chunk on the oil pump drive gear. He said it had sat for 4-5 years before I bought it as a parts tractor. A couple weekends ago I freed up the engine and got it to run for a minute. I noticed right away it wasn't building any oil pressure. I pulled the pan off and found the tooth damage and teeth in the oil pan. I was able to source a used cam & oil pump for about $125 shipped to me. It was worth a shot to get it running.

The Harbor Freight set was barely too small for pulling the crank pulley or the cam gear. However, I was able to use a couple of fender washers to get by today. I'm happy to report that we got it together this evening and it ran pretty good. This time it had great oil pressure. There's still a bunch of work to do to it, but now it runs and drives.

Thanks again for all the insight and guidance.
 
(quoted from post at 02:02:41 09/07/20) I'm happy to report that we got it together this evening and it ran pretty good. This time it had great oil pressure. There's still a bunch of work to do to it, but now it runs and drives.

Thanks again for all the insight and guidance.

Sounds great! Just wonder how one goes about stripping those gears?

But then I have know people you could lock necked in a padded cell with a bowling ball. Come back in five minutes you would find that person covered with dust and no bowling ball!
 
The old oil pump shows signs of frost damage. I think they tried to start it with some ice holding the oil pump from moving (maybe by pull starting it). The gears were the weak link and let loose.
 

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