crank vs. cam direction (timing chain job)

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crank vs. cam direction (timing chain job) #839790 10/04/07 06:32 PM

Joined: Mar 2003

Posts: 207

essex, vt

hunterp

Wheeler

hi all,

im about to pop the pulleys off, and get into this thing-following the instructions on roger's page..

the crank is turned to zero, but the notches on the cam gear are at 6 o' clock and not 12.

obviously this is how it ran before for 212K, is everything fine? should i put the new cam gear on with the dimples at 6 again?

thanks.

85 4runner/duals/detroits f&r/5.29s/winch/stuff

Re: crank vs. cam direction (timing chain job) [Re: hunterp] #839791 10/04/07 08:36 PM

Joined: Oct 2005

Posts: 392

Old Town, Maine

1986xtracab Offline

Mudrunner

if i understand you correctly, spin your crank another 360, it should put your cam at 12 and your crank as well

1986 xtra-cab 22re
stock everything
1991 bed

Re: crank vs. cam direction (timing chain job) [Re: hunterp] #839792 10/04/07 08:37 PM

Joined: Dec 2004

Posts: 159

Georgia

Whizkidder Offline

Wheeler

Bring the crank around one turn -- your cam will end up correct.

Re: crank vs. cam direction (timing chain job) [Re: Whizkidder] #839793 10/04/07 09:24 PM

Joined: Feb 2000

Posts: 1,059

Belmont, CA, USA

mosk

Body Damage is Cool

nth-ing the previous suggestions.

Background: 4 cycle engine, crank turns twice for each single revolution of the cam (that's why the cam gear has twice as many teeth as the crank gear).

Jeff Moskovitz
1986 turbo 4X4 truck
1998 2.7L/M5 4X4 4Runner

Jeff's 22R-TE page

22RTE Turbo Truck Forum (advertising free)

Re: crank vs. cam direction (timing chain job) [Re: mosk] #839794 10/05/07 09:04 PM

Joined: Mar 2003

Posts: 207

essex, vt

hunterp

Wheeler

ah i see <img src="/forums/images/graemlins/drunk.gif" alt="" />

damn im foggy this morning.

i threw on the new guts (chain, guides, tensioner) with the cam dimples at 6 o clock, i just need to rotate the crank to get them both to face 12 o clock?

s there a true difference between having the cam dimples at 6 rather than 12? or is it just for ease of install?

thanks <img src="/forums/images/graemlins/scared.gif" alt="" />

85 4runner/duals/detroits f&r/5.29s/winch/stuff

Re: crank vs. cam direction (timing chain job) [Re: hunterp] #839795 10/06/07 03:14 PM

Joined: Dec 2006

Posts: 386

tn usa

cktoy

Mudrunner

i think its the differance between exhaust stroke and intake stroke,you dont want the valves set for one when they should be doing the other.or some thing along those lines

oh what a feeling:
#1 86 xtra cab 22R,EB 261 cam ,Hooker header,2" ex with cherry bomb, Aussie powered
#2 86 sr5 4x4 efi parts truck
#3 87 2wd parts truck
84 supra yard art

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