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Stainless rocker plates - One (1) piece type...? #762225
01/11/19 1:55 am
01/11/19 1:55 am
Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US
Robert Dentico Offline OP

BritBike Forum member
Robert Dentico  Offline OP

BritBike Forum member

Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US

So we ordered a bunch of parts for my Buddy Bryan's '73 850 Commando. Received the goods today and checked them all in, mostly good however, I am in need of a sanity check here.

The stainless rocker plates are labeled "1 PC Type W/ Hardware" BTW, the hardware is really cool Socket Head Cap Screws (Allen)

According to the Parts manual, What I need are the "Lock Plates and Retainer Plates" along with appropriate gaskets.

Now, these plates are real cool but I just need to know whether these are a direct replacement or do I need the two-plate set up...? Oh, another thing, the Stainless plates have a raised boss on the back side, I did not measure it, probably .100" give or take.

I sent an email to the supplier and have not yet heard back, figured I would bug the collective... smile

Thanks much,
Rob


"They told me I was gonna have to work for a livin' but all I wanna do is Ride" - Jackson Browne

Current:
'75 T-160 Trident, '79 T-140 Bonneville, '13 Electra Glide, a garage full of Guzzis, '88 Honda Hawk GT, '84 RZ350 KR, 1991 BMW R 100 RT, 1969 Dalesman Trials etc and a '73 MGB for good measure... smile
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Re: Stainless rocker plates - One (1) piece type...? [Re: Robert Dentico] #762228
01/11/19 3:22 am
01/11/19 3:22 am
Joined: Aug 2012
Posts: 729
West Virginia, United States
Beach Online content

BritBike Forum member
Beach  Online Content

BritBike Forum member

Joined: Aug 2012
Posts: 729
West Virginia, United States
The 1 piece is replacement for the 2 piece.


Bill
1974 Norton Commando
1966 Lightning
1965 Lightning Rocket
1966 Norton Atlas
1967 Norton Atlas
1948 Panhead
Re: Stainless rocker plates - One (1) piece type...? [Re: Beach] #762259
01/11/19 2:39 pm
01/11/19 2:39 pm
Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US
Robert Dentico Offline OP

BritBike Forum member
Robert Dentico  Offline OP

BritBike Forum member

Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US
Originally Posted by Beach
The 1 piece is replacement for the 2 piece.


Well cool. I'll go pull one apart and check it out.

Thanks Bill.

Best,
Rob


"They told me I was gonna have to work for a livin' but all I wanna do is Ride" - Jackson Browne

Current:
'75 T-160 Trident, '79 T-140 Bonneville, '13 Electra Glide, a garage full of Guzzis, '88 Honda Hawk GT, '84 RZ350 KR, 1991 BMW R 100 RT, 1969 Dalesman Trials etc and a '73 MGB for good measure... smile
Re: Stainless rocker plates - One (1) piece type...? [Re: Robert Dentico] #762452
01/13/19 2:31 pm
01/13/19 2:31 pm
Joined: May 2007
Posts: 10,901
Pennsyltuckey
ricochetrider Offline

Moto Mojo
ricochetrider  Offline

Moto Mojo

Joined: May 2007
Posts: 10,901
Pennsyltuckey
Look like these?

[Linked Image]


I got these some years ago. Been on the bike since, no issues, no troubles. 850 Commando.


"It is no measure of health, to be well adjusted to a profoundly sick society."

Re: Stainless rocker plates - One (1) piece type...? [Re: ricochetrider] #762515
01/14/19 2:27 am
01/14/19 2:27 am
Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US
Robert Dentico Offline OP

BritBike Forum member
Robert Dentico  Offline OP

BritBike Forum member

Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US

rico,
Yessir, just like those, without the engraved logos.


I pulled a couple of the existing covers off and discovered one intake rocker shaft that has rotated about ten degrees off so that the lug on the backside of the new plate will not align properly with it and the two bolts holes both...
Can I rotate the rocker shaft back without any damage...?


Looking forward to using these new plates if possible.


Thanks for your comment.

Best,
Rob


"They told me I was gonna have to work for a livin' but all I wanna do is Ride" - Jackson Browne

Current:
'75 T-160 Trident, '79 T-140 Bonneville, '13 Electra Glide, a garage full of Guzzis, '88 Honda Hawk GT, '84 RZ350 KR, 1991 BMW R 100 RT, 1969 Dalesman Trials etc and a '73 MGB for good measure... smile
Re: Stainless rocker plates - One (1) piece type...? [Re: Robert Dentico] #762533
01/14/19 1:26 pm
01/14/19 1:26 pm
Joined: Aug 2012
Posts: 729
West Virginia, United States
Beach Online content

BritBike Forum member
Beach  Online Content

BritBike Forum member

Joined: Aug 2012
Posts: 729
West Virginia, United States
Yes you can rotate. Use heat gun around area and align it.


Bill
1974 Norton Commando
1966 Lightning
1965 Lightning Rocket
1966 Norton Atlas
1967 Norton Atlas
1948 Panhead
Re: Stainless rocker plates - One (1) piece type...? [Re: Beach] #762535
01/14/19 1:41 pm
01/14/19 1:41 pm
Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US
Robert Dentico Offline OP

BritBike Forum member
Robert Dentico  Offline OP

BritBike Forum member

Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US
Originally Posted by Beach
Yes you can rotate. Use heat gun around area and align it.


Interesting. Is this a common occurrence..? What a relief that the cure be that simple. I will do just that.


Thanks much,
Rob


"They told me I was gonna have to work for a livin' but all I wanna do is Ride" - Jackson Browne

Current:
'75 T-160 Trident, '79 T-140 Bonneville, '13 Electra Glide, a garage full of Guzzis, '88 Honda Hawk GT, '84 RZ350 KR, 1991 BMW R 100 RT, 1969 Dalesman Trials etc and a '73 MGB for good measure... smile
Re: Stainless rocker plates - One (1) piece type...? [Re: Robert Dentico] #762854
01/18/19 2:21 pm
01/18/19 2:21 pm
Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US
Robert Dentico Offline OP

BritBike Forum member
Robert Dentico  Offline OP

BritBike Forum member

Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US

Prior to putting some heat to the valve cover I tried to find a suitable tool in the vast array of tool boxes here, no go. So I am making a tool for turning the rocker spindle using 1/2" square stock, whittling down (I do not have a milling machine) a lug to fit precisely into the slot of the spindle.


Wish me luck, don't wanna break anything...!


Best,
Rob


"They told me I was gonna have to work for a livin' but all I wanna do is Ride" - Jackson Browne

Current:
'75 T-160 Trident, '79 T-140 Bonneville, '13 Electra Glide, a garage full of Guzzis, '88 Honda Hawk GT, '84 RZ350 KR, 1991 BMW R 100 RT, 1969 Dalesman Trials etc and a '73 MGB for good measure... smile
Re: Stainless rocker plates - One (1) piece type...? [Re: Robert Dentico] #762855
01/18/19 2:39 pm
01/18/19 2:39 pm
Joined: Dec 2004
Posts: 9,926
Scotland
kommando Online content
BritBike Forum member
kommando  Online Content
BritBike Forum member

Joined: Dec 2004
Posts: 9,926
Scotland
If the engine runs then start it and get it up to temp, the plates are to stop the spindles turning when the head is hot.

Re: Stainless rocker plates - One (1) piece type...? [Re: Robert Dentico] #762866
01/18/19 4:48 pm
01/18/19 4:48 pm
Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US
Robert Dentico Offline OP

BritBike Forum member
Robert Dentico  Offline OP

BritBike Forum member

Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US

Yeah kommando,
The 850 is in a non running state at the moment, taking it down for some maintenance and noticed this misalignment.
Will I do harm by doing this with the engine cold...? Well, I will heat it slightly with a heat gun.

Thanks,
Rob


"They told me I was gonna have to work for a livin' but all I wanna do is Ride" - Jackson Browne

Current:
'75 T-160 Trident, '79 T-140 Bonneville, '13 Electra Glide, a garage full of Guzzis, '88 Honda Hawk GT, '84 RZ350 KR, 1991 BMW R 100 RT, 1969 Dalesman Trials etc and a '73 MGB for good measure... smile
Re: Stainless rocker plates - One (1) piece type...? [Re: Robert Dentico] #762870
01/18/19 5:16 pm
01/18/19 5:16 pm
Joined: Dec 2004
Posts: 9,926
Scotland
kommando Online content
BritBike Forum member
kommando  Online Content
BritBike Forum member

Joined: Dec 2004
Posts: 9,926
Scotland
No, but do get some heat into the head using heat gun.

Re: Stainless rocker plates - One (1) piece type...? [Re: Robert Dentico] #762914
01/19/19 1:57 am
01/19/19 1:57 am
Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US
Robert Dentico Offline OP

BritBike Forum member
Robert Dentico  Offline OP

BritBike Forum member

Joined: Dec 2007
Posts: 157
Mid -Coast Maine & SoCal - US

Well that went well.

I made a tool from mild steel to insert into the rocker spindle and rotate it back into position after applying heat with said heat gun.

The simple tool I knew would possibly deform under pressure even with the heat. It did however the spindle is nicely aligned. If I were to make another (Heaven forbid) tool I would have it milled and heat treated so as not to deform, ok, bend.

So, the new stainless plates align well for both the bolt holes and the locking device.

Thanks much for the advise, you folks are great. Such a helpful community of riders and wrenches.

Best,
Rob

Attached Files Rocker Shaft Covers_Tool (3).JPGRocker Shaft Covers_Tool (16).JPGRocker Shaft Covers_Tool (15).JPGRocker Shaft Covers_Tool (14).JPG

"They told me I was gonna have to work for a livin' but all I wanna do is Ride" - Jackson Browne

Current:
'75 T-160 Trident, '79 T-140 Bonneville, '13 Electra Glide, a garage full of Guzzis, '88 Honda Hawk GT, '84 RZ350 KR, 1991 BMW R 100 RT, 1969 Dalesman Trials etc and a '73 MGB for good measure... smile

Moderated by  Dave Comeau 

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