|
|
Post by maximus on Jun 25, 2019 18:13:39 GMT
That is good going, bet your glad you measured it now 😅
No havent bought the whole head (bought the lower CM400 cam in the collage photo few posts up)
|
|
|
|
Post by BritPete on Jun 25, 2019 19:06:19 GMT
So is the plan to try it as a low power first
|
|
|
|
Post by maximus on Jun 25, 2019 19:36:17 GMT
Yes think its best to make sure everything is ok at first.
See how it goes, I might not even fit the cam, im just a sucker for purchases at the start of a new project!
|
|
|
|
Post by BritPete on Jun 25, 2019 19:47:32 GMT
I am very interested in this
You now have your posts to look at all the manuals
|
|
|
|
Post by maximus on Jun 25, 2019 20:00:36 GMT
Yes had a look earlier what a great selection, already downloaded workshop manual.
Was taking a look at the head overhaul procedure, and was surprised it didnt include the bolt tightening sequence?
|
|
|
|
Post by maximus on Jul 4, 2019 18:18:41 GMT
nice that it seems to be complete  hopefully a bit of minor fettling (lap the valves in etc) and you should be in business. the 450 nighthawk camshaft measured 36.9mm on an inlet, not too bad for a 26000 mile engine. Hi Buster, My cam arrived from the USA and measured the same as yours. Great I thought.....until I read the service manual.....  back to the future jenniferApparently 36.9mm is the service limit! Not sure if that means the hardness layer is nearly gone, or nothing to worry about?! |
|
|
|
Post by buster on Jul 5, 2019 6:24:33 GMT
I wondered about that too, I'll have to see if I can find the spec for the 450sc (I suspect they might have used the 250 uk spec cam?) I can say I was really pleased with my own top end (about 26000 miles) and at a cursory glance there seems to be very little wear
|
|
|
|
Post by maximus on Jul 5, 2019 19:26:22 GMT
Im sure its nothing to be concerned about, I mean I cant imagine all the 40k plus bikes out there have had there cams changed....🤔😁 surely not...😳
|
|
|
|
Post by buster on Jul 6, 2019 10:18:11 GMT
just bit the bullet and ordered a 450sc manual on ebay. I'v tried to get away without one but its annoying me now and I want to know certain specs.
|
|
|
|
Post by maximus on Jul 6, 2019 19:05:40 GMT
With you on that, getting frustrating searching through pdf manuals on the Google...
|
|
|
|
Post by na44superdream on Jul 7, 2019 14:53:29 GMT
The 450 cam lobe height is about 0.8mm lower, the 250 is almost the same as the 400 for cam profile.
|
|
hopefully a bit of minor fettling (lap the valves in etc) and you should be in business. the 450 nighthawk camshaft measured 36.9mm on an inlet, not too bad for a 26000 mile engine.
