Valve stem reveal

Laverda SF said:
For you Laverda 3 Cyl Guy's I suggest you look into the Manley Valve Catalog, I'm sure you find something to fit or close with minor modification.
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No need to, I just go to the store-room and pick the necessary 52 501 xxx valves from the boxes... made in Italy to Laverda specs by the original suppliers to the factory. :D

redax5 said:
You going to make it to the Red Bull Ring in August. ?
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Red,
Unfortunately not.  Too many personal commitments this year, and the taxman has taken more than was expected!  Already missing out on Spa, will kick myself even more in August. :'(

Have fun!

piet
 
Sorry for my Edit but what the H*LL.

From my experience with Manley, they will re-cut any of their Catalog Valves for the advertized price.

I've no clue where your getting your Pucks (That's your 3 Cyl Double DOHC Bag) but it all adds up to tappet clearance with a valve geometry that performs or Valve Stem Relief measurement that you Guys are after with your DOHC's, whatever.

Yes Manley is a North American Co., they delivery World Wide and their products are undoubtedly the BEST with Great Service, forget Ultra Dyne, that's my opinion.

Are you looking for Valves ;o)
 
Ron,
Why would either Piet, Keith or myself wish to buy Manley valves for, all 3 of us already have Valves made to our own specifications and stock them on the shelf.
In Piet's case, he has already stated he gets his in bulk from the original manufacturer.
Typical order for myself is 120 Exhaust valves and 90 x 39.5mm Inlet valves and 30 x 40.5mm Inlet valves

I also stock 42.0mm Kibblewhite Black Diamond Inlet blanks and 36.0mm Exhaust blanks for when I wish to make custom valves.
Above is for the triples, for the 750's I have custom made 7.0mm stemmed valves in stock that I machine custom valve guides for.
You may be interested to know but probably not that I actually get my valves custom made in Canada to my own specifications.

 
Get mine made in the UK to my own specs in various sizes and have them pulse plasma nitrided, oooh ! So, covered at this end also thanks Ron ;)



  Keith
 
I am happy there are lots of experienced options available these days.The first head work I had done was at Eadie's.New guides and valves that lasted 400ks till I bent 2 exhaust valves.Seems I missed a gear and over reved it.Thats what I got told and why it cost me another $400 to fix.What came to light years later was more stem clearance was needed for Stainless valves than what it got and they nipped up.Feel free to comment on that you Mechanics out there.I never really did get the full story at the time,just a very long drive to recover the bike from Bemboka,caught the bus to Canberra at 6am,train to Sydney,down the beaches to get the trailer and a co driver and 9hrs to Benboka,arrived at 2am,loaded and back to Sydney arriving at Eadie's at 9am to drop the bike off.  27hrs awake,happy I didn't kill anyone on that trip.Especially Norm when I got billed to fix it.
 
Here is a quick addendum to the above story.We drove through Canberra on the way down to Bemboka.This was in 1989 or 1990,at about 10pm,so here we were in my HQ panelvan with a bike trailer on the back.I mention to the codriver how I had thought Canberra was a sleepy place but this night it seemed to be full of really hot cars,lots of people on the streets as well,who know what The Summer Nats was back then,I had never heard of it.
 
Anyway there is an old fitters saying (but not mechanics I'm afraid):

'Do it nice or do it twice'.

In other words do the complete job first time around or live to regret it.
 
I've always used a simpler method that can be used by anyone without engineering abilities or equipment. I just use the depth gauge in the tail of a vernier gauge through a flat piece of metal that sits on the head.  The tail must just touch the highest point of the top of valve stem.It's not as accurate maybe but will tell if you are in the "ball park" of having a reasonable sized shim. The measurement to look for is 4mm to get a 2.6mm shim - not absolute - but near enough -  don't forget to subtract the  spacer bar thickness too!
  For the past 30 odd years I've had valves made (in the UK) that have up to 1mm shorter length between head and collet groove  I like the fact that they keep the valve spring tension when valves are further back in the head. - Regards - Phil
 

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That motor will never go in that frame, will it? :o

Bit of cunning measuring going on there as well.
 
Why would either Piet, Keith or myself wish to buy Manley valves for, all 3 of us already have Valves made to our own specifications and stock them on the shelf.
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I referring to us that don't have a store room of valves - particularly North Americans ;o)

I've enough experience to differentiate when buying valves between Ferrea, Manley and Ultra Dyne - I choose Manley. Why, their product is superior, just a phone call away and their service is Top's compared to other Valve Mfgr's.

Manley serves the commoner where as Ferrea and Ultra Dyne will even not talk to you unless you run a Fleet of F1's. Manley have Forged, SS, Titanium and Sodium ...whatever you want. Of course for a price but they deliver and with your Spec's.

Other Damn Good North American Co's. to deal with is ISKY and Mallory.
 
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