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Who needs ear plugs? Amazing valve-quieting techn

Sahms wrote:
When you can quiet your valves this way:

newsome_guzzi.jpg
Click to expand...

Is it mold I can see there?
 
I was told that this particular sollution, (Or one very like it.) was published in an early MGOC-USA tips book.

It's carpet or something similar lain over the rocker gear then the rocker cover is slapped on top. Brilliant! Just what is needed in a plain bearing engine with no oil filter!

Perhaps people would like to revive the idea and see if it will quieten down the new 8V motors when they go tits:laugh:

Pete
 
Dude, you guys have no idea how many older bikes come into the shop with various forms of that. Usually though, it's glued inside the cover, as opposed to just laying there. SO LAME
 
Great idea! I am surprised nobody ever used insulation spray foam - that really fills all the areas where the sound can escape! It could be injected through the valve cover vent hose.
I should have thought of that trick when I tried to get my LM with open Lafranconi's road certified. The put-a-family-pack-of-steelwool-in-each-silencer-with-a-broomstick trick worked though, together with intake reducers between carbs and manifolds with only a 1/2" hole to dampen the sound of the K&N's. Now we could only hear the valves - I guess I should have gone for the zero-valve-clearance-when-cold too. The inspector that did the brake test in the parking lot only stalled it 5 times and nearly tipped over..... Sorry Sir, I guess the carbs are a bit dirty from the long storage... The headers have nicely blued from that little parking lot ride too.....:laugh: :laugh: :laugh:
More tips and tricks please!
JR
 
My '70 Ambo project came with a real thick sort of gasket material under the covers. Looked just like the picture above. I'd never seen anything like it.

The inside of the valve covers were still shiny and silver though. :laugh:

They won't be going back in when I finish the motor.
 
Re:Who needs ear plugs? Amazing valve-quieting te

Roper wrote:
Sean? You are kidding aren't you???
Pete
Click to expand...

NOT KIDDING. In fact, if you dig thru our multiple boxes of valve covers, I think there are still a bunch in there with crap glued inside.
 
Just got another customer's bike in today-- with FRESHLY silicone-coated valve covers!!!
It just never ends hahahahahaha
 
That scares the $4!+ of me and I once slapped a grizzley bear for snoring too loud. :woohoo:
 
Re: Re:Who needs ear plugs? Amazing valve-quieting techn

pete roper said:
I was told that this particular sollution, (Or one very like it.) was published in an early MGOC-USA tips book.
Click to expand...

Yes. I just checked my tips book. There's a June, 1973 entry that says to thickly coat the inside with RTV, but I don't see anything about steel wool, or carpet, or whatever that stuff is. I wonder how many Eldos are out there with silicone goop inside the valve covers?
 
I have witnessed three with RTV and one with some that must have been akin to rubberized undercoating, :roll: I had to bake that stuff off. I had never seen steel wool, no need to worry about an oil filter I guess.
 
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