Pushrods and Rockers
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Elder User
Joined: Jan 2005
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From: Silverdale, WA.
Pushrods and Rockers
I am reassembling the 429 that came in the 77 f250 I just bought. Put the new head gaskets in, dropped the pushrods in, slipped on the rockers, but when I went to tighten down the rockers to the right torque, the nuts bottom on the studs with the pushrods still VERY loose. "I can move the rocker off the valve with the nut tight" kinda loose. Is this right? am I missing parts? I know I couldn't find any oil deflectors in the parts the PO had, is the 429 supposed to use them? Thanks for the help, just trying to get this thing running...
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Elder User
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From: Silverdale, WA.
The intake isn't on yet, so I am sure I didn't miss the lifters, The lifters and cam weren't pulled so I presume they are the right ones as they were running on the motor before. The pushrods and rockers are the same ones as well, Could they have shimmed up the rocker studs at the machine shop? There is a single washer under the stud, can't tell if it was factory or not. Is there a washer or something that goes between the rocker arm fulcrum and nut? Right now there is nothing between them.
Additional info: Block is D1VE, Heads are D0VE-C's, heads were decked .0006 to true them when new valve seals were installed at the machine shop. Block was untouched. Cam is supposed to be a comp cams Extreme 4x4.
Unfortunately this motor came unassembled, so I didn't see it come apart...
Additional info: Block is D1VE, Heads are D0VE-C's, heads were decked .0006 to true them when new valve seals were installed at the machine shop. Block was untouched. Cam is supposed to be a comp cams Extreme 4x4.
Unfortunately this motor came unassembled, so I didn't see it come apart...
Last edited by hotrod_ta; May 5, 2005 at 12:52 PM.
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Elder User
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From: Silverdale, WA.
O.k., after calling some 460 specialty shops around here I found out I do need the oil diverters for the rockers, and I shouldn't have a washer underneath the pedestal stud (I think.) Gonna junkyard the oil deflectors, they are 2.60+ each through westbay (only ones who could get them)
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From: Idaho cda postfalls
no washer under neath the stud. i would recomend putting the oil deflectors of the rockers or the oil will fly everywhere and not lube the rocker as good.im sure some one has them for cheaper or old ones they took off there engine.
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Joined: Jul 1999
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From: Missouri
I'm not sure what you've got going on but D0Ve heads don't use an oil deflector. D2 and D3's do and they also use a different rocker. What kind of rockers are you using? Taking the washers out from under the studs that shouldn't be there might be enough to solve your problem.
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Elder User
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From: Silverdale, WA.
O.k. Update, pushrods are fine without washers, Helps if you put the nuts on right side up (duh...) and the mad porter was nice enough to tell me the oil deflectors weren't used on pre D3 heads (I live a half hour from his shop), now just waiting on exhaust gaskets and valve cover gaskets to make this thing roar. Anyone think that a 71 D1ve block with flat top pistons and D0ve heads shaved .006 will run on pump gas?
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Joined: Mar 2005
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From: Redvers, SK
You're going to have to run premium fuel since your compression ratio will be around 11.0:1 or you will have to back your timing off so it won't ping. Engine sounds like it should run well with that cam, four barrel, and headers.