Valve Clearance Guide

Forum rules
Please can you post items for sale or wanted in the correct For Sale section. Items / bikes for sale here will be removed without warning. Reasons for this are in the FAQ. Thanks
Post Reply
Biscuits
Site Supporter
Site Supporter
Posts: 100
Joined: Fri Jul 24, 2009 12:56 pm
Bike owned: '88 NC24
Location: approaching the apex, carrying too much speed...
Re: Valve Clearance Guide

Post by Biscuits »

Not looking forward to it but I WILL get the clearances sorted and balance the carbs. I've just started working nights so time and money are no excuse. The tapping noise dies off as the engine warms up so I. Guessing it's valve related *gulp*
Formerly RacingSlug. Felt like a change and it came down to either Biscuits, Ben10 (possible copyright issues) or NinjaSmokeWarrior. The wife suggested TwatMan.
User avatar
Sprinter
Site Supporter
Site Supporter
Posts: 64
Joined: Tue Apr 29, 2008 9:31 pm
Location: Bristol
Re: Valve Clearance Guide

Post by Sprinter »

How do you get the shims out if you have quite a few. Remove the cams? Or isit possible to get all the cams at a position to access all the shims?
mattydrvf
Settled in member
Posts: 112
Joined: Wed Apr 22, 2009 10:38 pm
Bike owned: Rvf baby
Location: kent
Re: Valve Clearance Guide

Post by mattydrvf »

you can set the cams to allow access to the frist set of valves change them and then set the cams to a different position to allow access to the remaining valves. Its all explained in these pages have a look through mate.... :peace:
User avatar
Sprinter
Site Supporter
Site Supporter
Posts: 64
Joined: Tue Apr 29, 2008 9:31 pm
Location: Bristol
Re: Valve Clearance Guide

Post by Sprinter »

I realised that about a day after posting. :oops: Cheers anyway. :grin:
User avatar
Deviant400
Site Supporter
Site Supporter
Posts: 769
Joined: Sat Sep 05, 2009 12:50 pm
Bike owned: NC30, Kona Cowan
Location: Trowbridge
Re: Valve Clearance Guide

Post by Deviant400 »

did mine the other week , it really aint that bad when you get stuck in , just gotta be super careful not to drop the shims down into the engine, slide rocker arms over and use one of them telescopic rods with a little magnet on the end to lift out the shim, crap for gettin them back in tho , i used a little modelling file with a bend in the end with a blob of grease to stick the shim to, done the job perfect, check the gaps and recheck,
xivlia wrote:no i am not dead. ive just been trying a few things....
Deviants AM/PM build
viewtopic.php?f=62&t=27307
mattydrvf
Settled in member
Posts: 112
Joined: Wed Apr 22, 2009 10:38 pm
Bike owned: Rvf baby
Location: kent
Re: Valve Clearance Guide

Post by mattydrvf »

And unlike me remember to take out anything you use to block any holes the shims might fall down. Left a tissue in mine by accident and engine go boom :o :oops: Think it would of been ok if i had of used a cheap tissue but i used bounty, bloody good stuff if you have an oil leek by the way.... :lol:
User avatar
spooky
Site Supporter
Site Supporter
Posts: 429
Joined: Wed Apr 30, 2008 8:37 pm
Bike owned: nc24
Location: Newtownards Co.Down N.Ireland
Re: Valve Clearance Guide

Post by spooky »

Image
Bounty ehh , Which one are you?
\That wee smilie can drink some Guinness. No wonder he's yellow.
mattydrvf
Settled in member
Posts: 112
Joined: Wed Apr 22, 2009 10:38 pm
Bike owned: Rvf baby
Location: kent
Re: Valve Clearance Guide

Post by mattydrvf »

I'm the one in a heap in the corner constantly crying.... :cry:
buffalobisonhead
Settled in member
Posts: 22
Joined: Wed May 13, 2009 10:48 pm
Re: Valve Clearance Guide

Post by buffalobisonhead »

Hello There,
Would like to check my 94 NC35 valve clearances and am wondering about the tools required.

Which feeler gauges to use, the straight or angled ones?

Can you get one set that will cover the entire range of tolerances for both inlet and exhaust?

Look forward to hearing from you.

Cheers
User avatar
micpec
Site Supporter
Site Supporter
Posts: 1298
Joined: Sat May 03, 2008 9:11 pm
Bike owned: NC35’s, NC30 sold, MC34 many
Location: The Netherlands
Re: Valve Clearance Guide

Post by micpec »

As for feeler gauge. I used a 21 blade type straight one from tengtools...that is part.no.FG21 This will cover most of them.
Image
There are more brands and types on the market, from cheaper ones (universal brand from Hein Gericke) to even more expensive ones (gedore).
Check the ratings per blade. For example, if you need to check size 0.17mm, just use blade no. 0,15mm together with blade no. 0,02mm.
"Action without Philosophy is a lethal weapon; Philosophy without action is worthless"

Post Reply