Question about a rocker assembly for the I6 200

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gtvongt
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Question about a rocker assembly for the I6 200

Post #1 by gtvongt » Thu Jan 11, 2018 8:24 pm

I received the parts in bags to build the assembly with a car I bought and there are no instructions to assemble the rocker assembly itself.
There was no assembly on the head in the car, just bags of new parts.
My question is: Do the square oil ports for the rockers go facing up or down in the assembly, and should the towers fit very tightly on the shaft?
I don't see anything in the original shop manuals saying which way to put it either.
Any help is appreciated.

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Re: Question about a rocker assembly for the I6 200

Post #2 by bubba22349 » Fri Jan 12, 2018 12:01 pm

gtvongt wrote:I received the parts in bags to build the assembly with a car I bought and there are no instructions to assemble the rocker assembly itself.
There was no assembly on the head in the car, just bags of new parts.
My question is: Do the square oil ports for the rockers go facing up or down in the assembly, and should the towers fit very tightly on the shaft?
I don't see anything in the original shop manuals saying which way to put it either.
Any help is appreciated.


Normally when they were new the oil ports faced down, though it can still work the opposite way too. With all new parts the best way is down. On a well used rocker shaft you will see some wear on the bottom side of the shaft from the rocker arms that weren't oiling very good, due to a sludge plugged up shaft or poor oil change and filter maintenance. Yes the shaft towers should slide on with out excessive sloppiness on the shaft. Below is a picture of what the Non Aadjustable and also the Adjustable and Performance rocker shaft assemblys look like. Good luck :thumbup: :nod: Edited

Non Adjustable Rocker Arm set
http://www.rockerarms.com/images/chartimages/F144.jpg

Another view from the For Sale section below
https://www.flickr.com/photos/145383748 ... 637925562/

Rocker Arm Options including the Adjustable Rocker Sets
ci/RockerOptions.html
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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gtvongt
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Re: Question about a rocker assembly for the I6 200

Post #3 by gtvongt » Fri Jan 12, 2018 1:10 pm

Thanks for that information. It corresponds to my thinking with the tightest spot being the bottom with the upward pressure of the pushrods and springs, but I could not find an image of one during the assembly process to confirm it.
The towers I have are very tight, almost a press fit tightness, does it help to put the shaft in a freezer and the towers in a warm oven before assembly?

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Re: Question about a rocker assembly for the I6 200

Post #4 by bubba22349 » Fri Jan 12, 2018 3:48 pm

gtvongt wrote:Thanks for that information. It corresponds to my thinking with the tightest spot being the bottom with the upward pressure of the pushrods and springs, but I could not find an image of one during the assembly process to confirm it.
The towers I have are very tight, almost a press fit tightness, does it help to put the shaft in a freezer and the towers in a warm oven before assembly?


If everthing is nice and clean the towers should slide on easy not quite the same looseness as the rocker arms are, but still much easier then a press fit. If the parts have set around for awhile make sure there's no corrosion of the aluminum towers inside the holes. Not a bad idea to use some oil or a little white grease on the parts during the assembly too. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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gtvongt
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Re: Question about a rocker assembly for the I6 200

Post #5 by gtvongt » Fri Jan 12, 2018 9:23 pm

There is no corrosion at all, they were still sealed in the original packaging. It's a lot tighter than just 'slide them on' fit though. Even lubed first, it's too snug to just slide them on. Are there different sizes of tower bores or shaft diameters? Is it possible they got the wrong ones?

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Re: Question about a rocker assembly for the I6 200

Post #6 by bubba22349 » Sat Jan 13, 2018 12:18 am

To the best of my knowledge there is only one shaft and one tower size made for all the small six'es. If you have a micrometer or a good dial type caliper you could measure the shaft and tower to see the size differance then compare that to the rocker arms to the shaft. You could always carefully run a hone through the tower holes to loosen them up a little more too. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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Re: Question about a rocker assembly for the I6 200

Post #7 by B RON CO » Sat Jan 13, 2018 8:22 am

Hi, as Bubba said, you should not be fighting the towers. How do the rockers fit? if the rocker arms are good I would ball hone the towers just a little. You know the rockers must move freely. Good luck
B RON CO. Still workin' on it!

1933 Ford Pickup - 59A Flathead V8
1966 Ford Bronco - U14 - 170/200 Straight 6
1966 Ford Mustang - 289 V8

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Re: Question about a rocker assembly for the I6 200

Post #8 by gtvongt » Sat Jan 13, 2018 1:44 pm

I tried to edit a post, but it didn't work.
Anyhow, I got it all together, but the towers seem like they are slightly too wide and make the rockers slightly off center of the valve stems. The rockers move freely and were also installed with some Lubriplate as were all the other parts. It just doesn't look right to me being not perfectly centered, is this normal or did they get the wrong towers? Are they designed to wear into better position as the towers wear on the edges?
Image

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Re: Question about a rocker assembly for the I6 200

Post #9 by bubba22349 » Sat Jan 13, 2018 2:23 pm

I can't see your picture so not going to be able to tell for sure. But it just so happens that there is a new post in the for sale section at the bottom of the forums that shows quite a few pictures of the non adjustable rocker assembly looks like when mounted to the head shows the rocker arm contact ect. Also note that there is one tower near the back of the head that has to be done right so it matches the oil galley in the head so as to provide the oiling to the rocker shaft to feed the rocker arms, if you have that one right then just match the other tower positions to it. Here is the link for the pic,turns in for sale section. viewtopic.php?f=86&t=77783

You could also post your questions over in the small six engine forum (link below) and maybe get more responses too. Good luck :thumbup: :nod:

viewforum.php?f=1
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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gtvongt
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Re: Question about a rocker assembly for the I6 200

Post #10 by gtvongt » Sat Jan 13, 2018 10:26 pm

Mine seem to line up somewhat better than the ones in the reference photo.

Image
Image

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Re: Question about a rocker assembly for the I6 200

Post #11 by bubba22349 » Sun Jan 14, 2018 2:00 am

:beer: excellent and congrats it looks right to me! Did you verafy that the one towers oiling passage lines up with the heads oil port? Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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Re: Question about a rocker assembly for the I6 200

Post #12 by drag-200stang » Sun Jan 14, 2018 10:45 am

Yes it is normal , I have no idea why but that is what it is , run it. :thumbup:
66 Mustang Coupe
200 turbo w/lenco 4-spd
stock adj. rockers, stock timing set, ARP studs
best 1/4 mile ET 9.85/best mph 139 on 8 lbs progressing to 15 lbs boost
Went 9's when 10's was fast.

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Re: Question about a rocker assembly for the I6 200

Post #13 by gtvongt » Sun Jan 14, 2018 3:18 pm

bubba22349 wrote::beer: excellent and congrats it looks right to me! Did you verafy that the one towers oiling passage lines up with the heads oil port? Good luck :thumbup: :nod:

Yeah, all towers are the same, they have square holes for the bolts that act as oil passages, the oil port in the head is under the number 1 tower. In the photo, I do not have the top washers on yet because I am still working on the head, just wanted the assembly ready to bolt on. What is the torque on those tower bolts? Is it standard for the bolt size or different because of the aluminum?

A couple pics of the before and after front wheel and brake, I had to replace the hub because someone had a wrong pattern 4 lug wheel forced on and bent all the studs. (I plan to get a press and remove the studs and go back to the original hub later on)
Image
Image
Sorry about the bad focus on this one.

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Re: Question about a rocker assembly for the I6 200

Post #14 by B RON CO » Sun Jan 14, 2018 6:21 pm

Hi, my Chilton's manual says to tighten the rocker arm bolts two turns at a time in sequence, until the supports fully contact the head. Then torque to 30-35 ft.lb. You slowly bring the rocker shaft down, because you will be opening some of the valves and putting a load on the shaft. Also I put a dab of white grease on the valve stem and push rod ends. Good luck
B RON CO. Still workin' on it!

1933 Ford Pickup - 59A Flathead V8
1966 Ford Bronco - U14 - 170/200 Straight 6
1966 Ford Mustang - 289 V8

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Re: Question about a rocker assembly for the I6 200

Post #15 by bubba22349 » Sun Jan 14, 2018 9:18 pm

:thumbup: good job on the front brakes :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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