Head Identification Help please!

[Route--66--]

Hi all
I have a 1965 200ci, engine block shows C5DE 6015-H

The head shows C5DE-6C90-A (as close as I can tell)

This weekend I took the valve cover off to repaint it correct colour and noticed that the valves look as though they're the adjustable type. I am pretty sure I have hydraulic lifters as occasionally when I've left it for a while and start it, there's a single loudish tappet noise (and yes it is a tappet noise and not the exhaust) that goes away after a minute or so after which I assume it fills with oil and sorts itself out.
So.. is this head correct for my '65 200?

I thought if these engines had hydraulic lifters that there was no adjustment on the tappets (rocker arms / valves)
Or is this just a case of Ford using whatever head was in the parts bin at the time..?

here's a pic;

Also .. I assume there's absolutely no way of telling whether this head has been off and converted to unleaded without taking it off to look ..?

Cheers all !!

 

[CoupeBoy]

*usually* Ford did not use the adjustable rockers, it could have been a 'use whats left in the bin' sort of ordeal.. However there are some on here that have retrofitted the adjustable rockers onto their 200/250's. A previous owner may have just used what he had at his disposal. Either way its a great setup. And that is a great picture too, was it luck or have you got a nice digital camera?

And yes, the only way to know about the valves is to physically check them.

the Basic Part Number should be 6090 not 6C90.

-ron

 

[Route--66--]

Cheers Ron
Yes, with the head number there were 2 or 3 digits I wasn't sure about and that was one of them so am sure now it would have been a '0' and not a 'C'
I did hear that my engine had had a rebuild so maybe that's where the head came into it - although the engine has supposedly done only 42000 ish miles from new (it lived on an island above Seattle hence low mileage I guess)

Yeh pic was from a digital .. do you know what the yellowish plastic sleeve is that's inside the spring..??? not sure what that's for??

another pic here .. it's like a piece of art to me !!
http://s1244.photobucket.com/albums/gg572/Route66uk/?action=view&current=IMG_6334.jpg

I could ask how to set the tappet clearance / lash I think you call it !! .. but am sure that's somewhere else on this forum.. plus they sound quiet enough to me!

Cheers!
D

 

[CoupeBoy]

I can't really see the yellow thing to clearly, but if I had to venture a guess, I would say it is an umbrella style valve stem seal. They grip/hold onto the top of the valve stem and as the valve rises and falls the umbrella part covers the boss that the valve stem protrudes through into the head itself.

Adjusting valves...
Well, I haven't done it on a Ford (ever) but I used to work on my 283 a lot. But they are different in that you can adjust them while the engine is running. When that valve train is used on a solid lifter motor (144/170) you use feeler gauges to set the valve lash when the motor is cold and the valves are fully closed.

When used on a hydraulic motor (and hopefully if I am wrong somebody will chime in) you need to get the engine up to operating temperature. Then remove the valve cover. With the valve fully closed you tighten or losen the adjusting nut until the push rod has just a little bit of resistance when you try to rotate it with your finger. Rotate the engine by hand as needed and continue until all 12 are adjusted.

-ron

 

[Route--66--]

ahh, cool thanks for that
Is it a given that if my engine is the 200ci 1965 (7 main bearing) that it has to have hydraulic lifters ..?
Cheers again !!
D

 

[CoupeBoy]

I don't think you can make that assumption.
The solid lifter blocks were not drilled for oil passages into the lifter area. But the hydraulic lifter engines can have solid lifters swapped into them. And you have to remember Fords "Parts Bin" assembly line philosophy.. if they had left over solid lifter cams that fit your motor when your motor/block came down the assembly line, they probably would have stuck it in the motor..

There has to be a way to test it without pulling it apart, but I have never needed to. Off the top of my head there has to be some way to losen the rocker and 'compress' the lifter a little to verify solid vs hydraulic.

-ron

 

[Route--66--]

Ahhh... half way down this page
http://www.mustangmonthly.com/techa...00ci_six_cylinder_engine_buildup/viewall.html

shows that Ford used adjustable and non adjustable heads depending on what was available at the time! ... bless.

Cheers!
D