Valve to Piston clearance

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Jun 21, 2002 | 07:25 PM

doc

Thread Starter

Honda-Tech Member

Joined: Jun 2002

Posts: 131

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From: Austria/Europe

Valve to Piston clearance

Hi!

I'm building currently a B18C5 engine with 11.5:1 Pistons and Skunk2 Stg 2 Cams.
The head is slightly modified.

How much clearance should be between the Pistons and the Valves to run the engine save?

TIA

Doc

Jun 21, 2002 | 09:02 PM

Rocket

B*a*n*n*e*d

Joined: Mar 2002

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Re: Valve to Piston clearance (doc)

0.060" is good clearance.

Jun 22, 2002 | 06:26 AM

No-Gi

Honda-Tech Member

Joined: Dec 2001

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From: AC

Re: Valve to Piston clearance (Rocket)

I had these cams and because I did not clay the block I ended up with 7 bent valves and 1 broke one that went thru the piston and smashed the combustion chamber of my beautiful ported head. Better safe than sorry

Jun 23, 2002 | 05:31 PM

doc

Thread Starter

Honda-Tech Member

Joined: Jun 2002

Posts: 131

Likes: 2

From: Austria/Europe

Re: Valve to Piston clearance (Rocket)

Thank you for your help!

I've clayed out with vtec locked and camgears set to +4,-4.
The result are: in 0.094", ex 0.063"

@B16aEK: sorry to hear that!

Doc

[Modified by doc, 2:33 AM 6/24/2002]

[Modified by doc, 2:33 AM 6/24/2002]