Replaced them lifters and car sounds like a deisle truck

[barrysmith]

Are the push rods aolid or hollow with holes top and bottom for hydraulic lifters?

I am the one with the strange lifters that replaced with the modern type and new push rods, the push rods i have are solid and there is no oil getting to the valves !

Sounds like a mac truck.

[Guest]

Ithink you better get some with holes. That's what they had. Did you change the rockers or cam or shafts? You might have to go longer or shorter or standard.

[KULTULZ]

Can you get a quality shot of the rocker arm and pushrod?

The valve lash is adjusted by pushrod length on a hydraulic. Did the tech go through the sequence?

[barrysmith]

I changed the lifters and push rods, the ones in it where weird, solid kinda with diferent lenghts on the push rods, maybee a aftermaket performance thing of the era, look at my post on lifters, solid or hydraulic.

The push rods in it where solid with a none adjustable rocker arm, and a strange lifter that only had about a 1-2 thousands play in them, all push rods where different lenghts.

[barrysmith]

I thought the hydraulic lifters would automatically set at 0 lash once the roker arm was torqued at 45 lbs.

[KULTULZ]

I thought the hydraulic lifters would automatically set at 0 lash once the roker arm was torqued at 45 lbs.

No. The length of the pusrod is critical and is how that adjusment is realized.

There is no oil supply coming from the rocker arm shafts?

[barrysmith]

No sir, should the push rods be solid ?

[KULTULZ]

No sir, should the push rods be solid ?

The oil supply comes through one of the actual rocker stands on either bank. It then feeds each individual rocker through the rocker shaft(s).

You may have the rocker arm assemblies assembled incorrectly. Did the tech disassemble them for any reason?

One may use drilled pushrods to increase flow but this is very unusual.

Study your lube guide illustration again.

[JohnG]

When I rebuilt my motor (only time I ever did an FE so a novice) I spent a fair amount of time cleaning the entire rocker assembly and making sure the oil flow from the motor to it was clear and made sense. There are also diagrams both on-line and in manuals showing the oil flow. In other words if you study the assembly, you can see how it is designed to flow oil and also decide if it is possible to assemble it wrong.

I also recall there were either 2 or 3 different pushrod lengths.

John

[barrysmith]

I think I mounted the heads on the wrong side,my friend told me there was no diferance in left or wright.

[KULTULZ]

Both heads are interchangeable.

The pushrods come in STD length, .030" O/S, .060" O/S and .060" U/S (and infinite lenghts from a cam company) to arrive at correct valve lash. A special tool is used to put leverage on the rocker arm to collapse the lifter at which time you measure the resulting air gap between the valve stem and rocker arm. You then use the correct length push rod to arrive at this correct air gap.

[JohnG]

hi Barry

I'm looking at the exploded parts diagrams in Vol II, Illustrations from the TBird Sanctuary.

I see nothing that suggests a left and right cylinder head. Further more (am hoping someone will comment) the 430 engine shows the same heads as the 352/390. The part number shown is 6049. Any of you 430 guys want to verify this??

So I think in your case you need to take the rocker assemblies off and study them until you understand the oil flow, check the pushrods, and reassemble. This should not take long but I am pretty sure the rocker stands and assemblies can be installed incorrectly.

John

[KULTULZ]

hi Barry

Further more (am hoping someone will comment) the 430 engine shows the same heads as the 352/390. The part number shown is 6049. Any of you 430 guys want to verify this??

John

The 352 and 430 while similiar in basic design are two different engines. Basic PN 6049 is the Service Basic PN on all cylinder heads. The PN prefix and suffix will fully identify the head.

[JohnG]

hi Gary
thanks for clarifying that! The illustrations only had the 4 digit portion of the number.

Back to the original question: are the two heads identical or is there a Left and Right ?? I dont remember worrying about it when I put mine back together but there was a 50% chance of getting lucky!

thanks again
john

[barrysmith]

Thanks for that info, I am still at a delema as to why it is not getting oil to the rocker arm assembly, It did prior to the heads being rebuilt.

I know this for a fact, because I replaced the valve seals and remember the oil coming up through one of the rocker stands now that I think about it.
The rocker arm assemblies were not taken apart.

Is it possable to mount them on the wrong side?

I will remove one and see if the oil is coming up to the assembly.