Lesson in making an Intermediate Shaft support tool

batrider · Dec 10, 2009

I have a partial Atlas motor that was given to me residing in a storage unit but I really hesitate to sacrifice the timing cover for this purpose. I agree that the Norvil price is not that terrible. It would make a good Christmas present so my wife won't have to shop for me. Marshal Norton - you can borrow it whenever you want... In 37 years I think I may have had to mess with those nuts maybe twice. But if one must have every tool then it must be done. It will make up for the tuna can clutch spring tool.

I don't think it is stainless though but not sure. There was something about SS after the part number for his SS parts.

Russ

Reggie · Dec 11, 2009

batrider wrote;

I don't think it is stainless though but not sure.

No, it's not stainless steel,it's alloy.

RennieK · Dec 11, 2009

That Norvil unit is a nice simple design with good access all round.

swooshdave · Dec 11, 2009

Reggie said:
batrider wrote;

[/I don't think it is stainless though but not sure.quote]

No, it's not stainless steel,it's alloy.

Click to expand...

I stand corrected. Regardless, that's still not that bad of a price.

Hmm, something the local club can buy and loan out to members...

BrianK · Dec 11, 2009

Not that I'm a fool for a tool, oh no!, but I bought one. Hoping to receive in the next few weeks and get my job done this winter ('less I can come up with some more excuses to put it off). Will be happy to lend out to anyone who needs it.

Reggie · Dec 12, 2009

I've got one. It works fine.............when you've worked out which way around that it fits and which crankcase screw holes its designed to use. It took me a couple of minutes to work it out

BrianK · Dec 12, 2009

Is it properly oriented in the picture - would use screws at 12, 5, and 8 o'clock if so?

rvich · Dec 12, 2009

OK guys, I guess I might as well ask because after reading what I can find I am still wondering. The need for the tool to support the shaft has led me to believe that when the timing cover is removed that there will be some movement of the intermediate shaft. I just happen to have my timing cover off to inspect the oil pump and I can't get so much as a wiggle out of the shaft. So what am I missing here...other than the third sprocket shown in the photos!
What kind of tolerances are we talking about here?

thanx,
Russ

BrianK · Dec 12, 2009

Can't get a wiggle with your fingers, or when you torque down on the camshaft sprocket nut? Big diff, I should think.

RennieK · Dec 13, 2009

Hi Russ, the purpose is to support the pinion shaft when torquing the the camshaft nut. Also for more accurate timing chain adjustments. If you put a dial indicator on the end of the pinion shaft and crack the cam nut you should see the movement. The fear is this will put the bore in the engine case out of round and once this condition is started it will only get worse over time.

rvich · Dec 13, 2009

I appreciate the replies on this. I assume this is why the manual asks that the cam nut be tightened using a steady pressure instead of impact of any kind to tighten it. I have also never had my engine torn down that far, but the day will surely come. I would assume the same worry could apply to getting the nut loose. If I am reading the technical data correctly we are asking for 25 lbs of torque, which isn't a huge amount.

One of the reasons I wonder about the torque and the tolerances involved is that it doesn't look to me like it would be that hard to make this tool. The Norvil tool is not terribly expensive but it certainly looks more robust than anything I would fab up in my shop for much less cost.

Russ

Danno · Jul 10, 2010

I have an old 750 timing cover in the parts pile with stripped screw holes for the points plate if anyone wants it to make one of these cutaways. You pay shipping and let me borrow it if I ever need it and it's yours.

RoadScholar · Jul 10, 2010

Danno

E-mail sent

RS

britbike220 · Jul 10, 2010

L.A.B. said:
I think what we actually need is someone to start making a special support tool, especially now that it isn't so easy to find spare timing covers to cut up?

I would buy one as well.

Danno · Jul 10, 2010

RoadScholar said:
Danno

E-mail sent

RS

I screwed up and deleted the E-mail thinking it was a P.M. notice. Shot you a P.M. to send you address and I'll ship it out this wek.

pelican · Jul 10, 2010

I'd buy a tool too when I get some cash if someone started making them.

DogT · Jul 10, 2010

I'm seriously thinking about going to my local machine shop and asking what it would cost to make 10 or 20 of these things like ludwigs, and maybe even some head steadys out of AL similar to CNW, not to fault theirs, but $400?

Dave
69S

pelican · Jul 10, 2010

the headsteady is nice. you can't really tell from the pics, but the joints are lubed and sealed with rubber seals. Sure that adds to the cost. You're right though 400 is a lot.

CanukNortonNut · Jul 10, 2010

first time with trying to sent image so hope this works.
here is my intermediate shaft support tool which I copied from Mick Hemmings video.

Lesson in making an Intermediate Shaft support tool

Used a Milling machine and then fine tuned it with a file.

Regards.
CNN

BrianK · Jul 10, 2010

Errrrrrrrrmmmm guys, you did see that Norvil makes a tool for this? No timing covers were harmed in the making, either; as far as I know....

Lesson in making an Intermediate Shaft support tool

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