302 Valve lash adjustment?
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Laughing Gas
Joined: Apr 2001
Posts: 1,191
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From: West Union, OH USA
302 Valve lash adjustment?
I recently acquired a well abused 1965 F100 originally a 223 now has a 302 with rattling rocker arms how do I fix this. I have a Hanes manual for 1973-1979 fords but cannot find any method for tightening the rocker arms. Any suggestions appreciated.
Postmaster
Joined: Sep 2004
Posts: 3,166
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From: wi
if its a 302 all the ones ive seen ya turqe them down to 20-25 ftlbs but some of the ol 289's would adj.like brand x so im betin that this thing probably sat for a long while so id change out the lifters they probably colapsed makin for a noisy runin engine
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Laughing Gas
Joined: Apr 2001
Posts: 1,191
Likes: 4
From: West Union, OH USA
By the way the #'s above the starter are:
D10E-6015-AA
2C1
It also has 3 bolts for the balancer and crank pulley. Can you tell what year and size motor this is because I am not exactly sure myself.
D10E-6015-AA
2C1
It also has 3 bolts for the balancer and crank pulley. Can you tell what year and size motor this is because I am not exactly sure myself.
Postmaster
Joined: Sep 2004
Posts: 3,166
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From: wi
that would rule out 289 cuzz thats a 71 casting # the first letter d is for 70's and c for 60's then the #after that is the year like yours d1=71 so as far as the original ? if they are torqed down and still rattle look elsware ie.lifters,fulcums,valve tips,ect.
Tuned
Joined: Sep 2004
Posts: 305
Likes: 1
From: Fuquay Varina, NC
When I had 289's in my '65 Mustangs, the procedure for adjusting the hydraulic lifter based valves was first to get some old valve covers and cut the tops off. Install one and start the engine running (should be warm before doing this). Doing 1 valve at a time, loosen the lock nut until the rocker tip starts knocking on the valve stem/push rods, then slowly tighten until it just stops making noise, and then tighten 1/4 turn further. Do all 16 valves and you're done.
Now, there were other setups/engines that had solid lifters - those require lash setting. Other engines did have a fixed height and were torqued down as wizard mentioned above. You need to find out what type of valve train setup you have (sorry - I don't know too much about the '71 302's configuration assuming yours is stock).
Good luck,
dagger
Now, there were other setups/engines that had solid lifters - those require lash setting. Other engines did have a fixed height and were torqued down as wizard mentioned above. You need to find out what type of valve train setup you have (sorry - I don't know too much about the '71 302's configuration assuming yours is stock).
Good luck,
dagger
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Laughing Gas
Joined: Apr 2001
Posts: 1,191
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From: West Union, OH USA
I dont have any extra valvecovers to cut up, so is there a way to do it without it running? When you torque them down to do you have to have a certain cylinder to top dead center?
New User
Joined: Oct 2004
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If you have the rocker arms that are held on with nuts (not the bolt down type like on '79 heads for instance), I can recommend Comp Cams 4610-16 adjustable rocker kit. It's not rockers themselvs, but machined spacers that allow for adjustment, and a set of jamnuts to keep it there.
I run a Crane Energizer cam and it recommended having adjustable rockers. Seems to work great, it was my first valve lash job & I didn't know you had to preload them so much (more than 1/8 turn), so I think I can hear a loose one.
My contribution would be, re-assembling from a head swap or head gasket r&r, don't use silicone on the valve covers until you've run it & satisfied with it.
I run a Crane Energizer cam and it recommended having adjustable rockers. Seems to work great, it was my first valve lash job & I didn't know you had to preload them so much (more than 1/8 turn), so I think I can hear a loose one.
My contribution would be, re-assembling from a head swap or head gasket r&r, don't use silicone on the valve covers until you've run it & satisfied with it.
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Originally Posted by fordguy76
I dont have any extra valvecovers to cut up, so is there a way to do it without it running? When you torque them down to do you have to have a certain cylinder to top dead center?
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New User
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That's good, I know there's got to be people on the forums w/the bolt down ones so I won't tell you how errr, lacking, they are 
. The Comp kit is a good fix for these heads.
ga302's right about running it with the valve covers off, it won't spray out. Might slowly overflow out the lowest point if you leave it running for a while.
. The Comp kit is a good fix for these heads.ga302's right about running it with the valve covers off, it won't spray out. Might slowly overflow out the lowest point if you leave it running for a while.
4wd Low
Joined: Feb 2005
Posts: 14
Likes: 1
From: Lexington nc
Comp cam nuts 4610-16
That's good, I know there's got to be people on the forums w/the bolt down ones so I won't tell you how errr, lacking, they are . The Comp kit is a good fix for these heads.
ga302's right about running it with the valve covers off, it won't spray out. Might slowly overflow out the lowest point if you leave it running for a while.
. The Comp kit is a good fix for these heads.ga302's right about running it with the valve covers off, it won't spray out. Might slowly overflow out the lowest point if you leave it running for a while.
I guess my oil pressure is high. Rockers were shooting oil 3 ft
Hotshot
Joined: May 2003
Posts: 11,141
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From: south louisiana
My guess after 17 years since this was posted, the issue's been resolved...................
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