Points plate oil seal.

Status
Not open for further replies.
Joined
May 16, 2008
Messages
161
Country flag
Hey guys and gals,
I'm having to replace the oil seal behind the electronic ign, again.
Apparently I didn't do it right the first time because the round spring in the seal came out.
Does any body know which way the seal goes in?
Does the spring side of the seal go on facing the engine or outwards facing the cover?
I had mine faces outwards, didn't work out to well.
 
Spring always faces the pressure is the rule to use, so I'm this case it faces towards the engine.
 
The spring will be the engine side, you can get a tool to help you giude the end of the camshaft into the seal
It screws into the cam and has a gentle taper to help the lip of the seal on to the camshaft
 
Good info thanks. Now I just have to wait for the new seal. I don't want to use the one I just put in again just in case it's damaged by the spring coming out.
 
Good info thanks. Now I just have to wait for the new seal. I don't want to use the one I just put in again just in case it's damaged by the spring coming out.

Even though you installed the seal backwards did you use the seal installation tool? It is a necessity.
 
Even though you installed the seal backwards did you use the seal installation tool? It is a necessity.
nope, used a socket. Guess I better buy an installation tool.
Also while I'm at it, the other seal, the bigger one behind the cir-clip next to the oil pump does that one's spring also face the engine?
 
nope, used a socket. Guess I better buy an installation tool.
Also while I'm at it, the other seal, the bigger one behind the cir-clip next to the oil pump does that one's spring also face the engine?
No the seal on the crank has the spring facing out away from the engine
The spring will always be on the pressure side
 
I lent my seal install tool which came with the orginal tool kit when I brought my Norton new but the bloody thing never came back to me, that was 40 years ago now so now when putting new seals on I just dab grease on the seal lip and a bit on the shaft and slowly push it over the shaft, this works great every time and I have rebuilt a few Norton engines over the last few years and have never damaged a seal yet doing it this way.

Ashley
 
  • Like
Reactions: baz
nope, used a socket. Guess I better buy an installation tool.
Also while I'm at it, the other seal, the bigger one behind the cir-clip next to the oil pump does that one's spring also face the engine?
The tool is nice, but here's another way:



Start watching at 14:30. It's a Triumph, but the issue is exactly the same.
 
If you don't have the tapered tool you can just tape the end of the camshaft. You just don't want the sharp edge of the cam cutting the seal when installing.
 
I equate using the seal installation tool vs. other methods same as I view using the proper box end wrench (ring spanner) vs. an adjustable open end (Crescent) wrench.

Taking shortcuts always leads to taking more shortcuts.
 
If you don't have the tapered tool you can just tape the end of the camshaft. You just don't want the sharp edge of the cam cutting the seal when installing.
The tool is nice, but here's another way:



Start watching at 14:30. It's a Triumph, but the issue is exactly the same.

Seems like there is always another way, pretty cool. I had already ordered the tool before I saw this clip. But thanks anyway.
 
Ever notice those who don't have time to do it right always find time to do it over.
 
I keep my tapered tool with me at all times. JimC no need to get yourself all wound up.
 
Status
Not open for further replies.
Back
Top