SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: Beaveretriever on May 21, 2008, 08:40:45 PM

Title: Adjusting Valve lash
Post by: Beaveretriever on May 21, 2008, 08:40:45 PM
On my olds 455 can i adjust the valves while the motor is running, loosen until you hear the tap then tighten until it barely goes away?
Title: Re: Adjusting Valve lash
Post by: The Chaz on May 21, 2008, 08:56:18 PM
Might get a bit messy >:D
Title: Re: Adjusting Valve lash
Post by: OC2Vegas on May 21, 2008, 10:01:44 PM
I am sure it can be done, but probably easier with it off
Title: Re: Adjusting Valve lash
Post by: gregb on May 21, 2008, 11:45:06 PM
Most Olds engines I've seen have non adjustable rockers, they use a bolt that is torqued down, from the factory they have an aluminum pivot that is prone to wear, if your hearing rocker noise I'd take the covers off and inspect all of them, if you have replaced all that with an aftermarket adjustable setup you can disregard what I just said.
Title: Re: Adjusting Valve lash
Post by: Beaveretriever on May 22, 2008, 12:50:50 PM
Do you know what the aluminum pivot is called, so that i can maybe order some from summit? or is it worth while to just by adjustable rockers for a "stock" motor?
Title: Re: Adjusting Valve lash
Post by: SLCKREG on May 22, 2008, 12:56:18 PM
gregb is right(non adjustable) on my olds I picked up the  adjustable kit, but I prolly could have got by with just some slightly longer pushrods.
Title: Re: Adjusting Valve lash
Post by: 2savage4you on May 22, 2008, 01:13:10 PM
Do you know what the aluminum pivot is called, so that i can maybe order some from summit? or is it worth while to just by adjustable rockers for a "stock" motor?



http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=290231032954&ssPageName=STRK:MEWA:IT&ih=019

2sav ::)
Title: Re: Adjusting Valve lash
Post by: Beaveretriever on May 22, 2008, 01:25:29 PM
thanks 2sav i just bid
Title: Re: Adjusting Valve lash
Post by: 2savage4you on May 22, 2008, 01:29:37 PM
thanks 2sav i just bid


You did see there is only seven of them i hope?

2sav
Title: Re: Adjusting Valve lash
Post by: Beaveretriever on May 22, 2008, 02:20:04 PM
i did, but 7 is better than none  O0
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