B20Z detonating after timing belt/other service

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Jul 31, 2005 | 09:21 AM

gamby

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From: AWFUL autocrosser from, RI

B20Z detonating after timing belt/other service

Hey gurus--

The B20Z in my wife's 99 CR-V is detonating after doing a service on it which included:

Change timing belt/water pump
change tranny fluid
change brake fluid
clean K&N
valve adjustment

It now detonates under load. I know we didn't let the camgears move over a tooth--as evidenced by the car's perfect idle and newfound pep.

Any thoughts on what the hell could be happening?

Jul 31, 2005 | 01:09 PM

non-VTEC

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From: Toronto, Canada

Re: B20Z detonating after timing belt/other service (gamby)

possible that you got a bad tank of gas?

Jul 31, 2005 | 03:03 PM

Educator

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Joined: Mar 2005

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From: Richmond, Va

Re: B20Z detonating after timing belt/other service (non-VTEC)

I'm willing to bet lots of money the belt is off by a tooth. Same thing happened to a Civic HX A buddy and I did a service on. It detonated under load and didn't make much power. Check the timing marks on crank with the cam pulleys.

Good luck.

Jul 31, 2005 | 06:11 PM

Runnerdown

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From: Albany, NY

Re: B20Z detonating after timing belt/other service (Educator)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Educator »</TD></TR><TR><TD CLASS="quote">I'm willing to bet lots of money the belt is off by a tooth. </TD></TR></TABLE>