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Checking Valve shims

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1975-S1C
100Club
100Club
Posts: 125
Joined: 13th Jun 2011
Location: Bristol

Re: Checking Valve shims

#61 PostAuthor: 1975-S1C » Fri May 31, 2019 6:05 pm

Ok, thanks for the advice. I’ll get the shims I need to drop the two .19’s down to .14.
Probably leave the .17 as is.
Cheers again

Safo
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Location: South Yorkshire

Re: Checking Valve shims

#62 PostAuthor: Safo » Tue Jul 09, 2019 5:42 pm

First of all what a great articale , as I am a reborn z fan and owner I have been re aqainting myself with my kz900 w/s manual, and just to reiterate it also states that you should never grind the shims as they can fracture, but you can grind the valve stem a little to bring it back to spec (on a purpose made tool of course, and with the valve removed

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1340fxd
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Location: New Forest, Hampshire

Re: Checking Valve shims

#63 PostAuthor: 1340fxd » Wed Apr 15, 2020 6:44 am

I'm about to do this for the first time - :oops:

Great post - thank you. Two questions if I may:

1. You say "Take care when rotating the cam with the bucket holder tool in place, heads have been ruined by rotating the wrong way". How do I know what the right direction is please?

2. The pictures are great - are they available without the photobucket watermark through the middle?

Cheers
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Pigford
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Location: Hampshire Coast UK

Re: Checking Valve shims

#64 PostAuthor: Pigford » Wed Apr 15, 2020 7:29 am

1340fxd wrote:I'm about to do this for the first time - :oops:

Great post - thank you. Two questions if I may:

1. You say "Take care when rotating the cam with the bucket holder tool in place, heads have been ruined by rotating the wrong way". How do I know what the right direction is please?

2. The pictures are great - are they available without the photobucket watermark through the middle?

Cheers


I ALWAYS remove the tool before rotating engine - turn engine clockwise looking from points (clutch) side.
And on the 7th day... Zeds were created!

kev edwards
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Re: Checking Valve shims

#65 PostAuthor: kev edwards » Wed Apr 15, 2020 8:29 am

1340fxd wrote:I'm about to do this for the first time - :oops:

Great post - thank you. Two questions if I may:

1. You say "Take care when rotating the cam with the bucket holder tool in place, heads have been ruined by rotating the wrong way". How do I know what the right direction is please?

2. The pictures are great - are they available without the photobucket watermark through the middle?

Cheers


The right direction is to move the lobe away from the tool once installed just enough to extract the shim, when you have it on an exhaust bucket rotate engine forward enough so you can get the shim out, when done rotate back to the open position, with inlet when the tool is installed you have to rotate motor backwards just enough to remove the shim and when done rotate back to open position, under no circumstances move cam lobe towards tool as you will bust the head, if you are still unsure purchase the other style of tool, much safer.
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