Thread: FFR 33 Ford Hot Rod
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12-31-2019 10:38 PM #466
...............Last edited by wrp; 05-19-2022 at 12:00 PM.
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12-31-2019 10:40 PM #467
With the seats cut we took the valves and used an aggressive cutting compund with the stopper tool to insert them into the guides then hand finish a seal between the valve and the the valve seat. Essentially the seal is ground into the highest point of the convex surface of the seat. I have a piece in the video turning the valve by hand with the tool but do not have a picture of it. At any rate this is a finished job. On the second photo (5th) note the grey band around the valve. This is the seal. We inspected each closely uner a bright light. Sort of like fiberglass work, we were looking for high spots and low spots in the grey band as well as the consistency of the band width as well as a matching grey band on the seat in the head (next photo). So anyhow, 16 of these. We found several valves in these brand new heads where the grey band showed high and low spots so we had to rework the valves on a lathe. They were stainless steel. We tested each valve for seal with an air compresser and a jig, shown in the videos. My valve seats and seals are solid.
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12-31-2019 10:42 PM #468
So that pretty much completed the bottom side. Next we turned to the valve guides and the spring seats. If you look closely at the guides, the larger is the stock guide and the smaller one is the machined guides we did. The limiting factor on these heads is the lift. About .450 is all they will take. My cam has a .450/.460 lift so we shortened the entire guide after it was installed. The wider area around the base of the guides is also too thick on the stock guide to allow the double springs to fit, so we had to cut down the diemeter on the bottom and lower the lip so the springs would not coil bind due to the retainer hitting the guide. Also, note the spring seat around the bottom of the guide, we had to widen that seat for the new springs to sit flat.
IMG_3955.jpgIMG_3954.jpgLast edited by wrp; 12-31-2019 at 10:44 PM.
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12-31-2019 10:46 PM #469
I am not pretending to be an expert on this. I have taken my time with a machine shop that was willing to let me watch, ask questions and even do some work. Like paying for a graduate level course at the local University. Here is the movie
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01-01-2020 07:00 PM #470
I have been going through a set of SBC Vortec heads in preparation for instlalling them in my 355 Ci motor. Even with my flat tappet cam had too high a lift for any spare room for the heads which are limited to .450 lift. My cam was a .450/.460 lift so we went to a machine shop to prep the heads. The man who owned the shop was gracious and allowed me to participate in every step of the process. It was a better learning experience than any postgraduate program I have been in. In this segment, we are lapping the valves which essentially means establishing a seat on the heads for the valves to seal against. We had drilled out the old valve seats and replaced them, then recut them. Lapping w2as the final step and it is a good thing we decided to do it. Some of the valves, though from the factory and never installed, had flat spots on the seat area. Enjoy the video.
https://www.youtube.com/watch?v=NLygbUZKshk
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01-02-2020 10:29 AM #471
Very cool to see how your measure the fit and seating of the valves." "No matter where you go, there you are!" Steve.
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01-03-2020 10:41 PM #472
Thanks, the surfacing machine is accurate enough to shave a mark from a magic marker off changing it from black to grey. I have not nearly shown the use if micrometers to determine the vale stem size of a number of other measurements.Essentially it took an entire day to hone the valve guids. Each one is matched to the valve that will go into it.
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01-06-2020 10:09 PM #473
Installed the seals, valves, springs and retainers tody, Got the heads home.
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01-08-2020 07:52 PM #474
One of my passions lately is taking pictures of the car with Flags flying in the background. Drove around Plano today snapping a few shots. Enjoy.
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01-09-2020 05:52 PM #475
Nice! Looks like that flag is as large as the car!
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01-10-2020 10:35 AM #476
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01-14-2020 06:02 PM #477
So this has been my bucket list, not the car, the ability to work with people, learn, share, solve problems, and be proud of the result. Was thinking about the build the other day and if crossed my mind, the build is not about the car, it is about the people.
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01-14-2020 06:24 PM #478
very true!" "No matter where you go, there you are!" Steve.
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01-17-2020 05:38 PM #479
So I have had a lot of fun going around shooting images of the car with an American Flag backdrop. It is interesting to note the number of businesses that display flags versus those that do not. It is also interesting to note those that display the flags with care and appropriateness. One particular private school near me does a fantastic job. The adminstrator in charge is very knowledgable and a genuinely nice person. I had notice their flag was beginning to fray and was getting tangled in the rigging so I went out and bought them a new one. They were very gracious and I enjoyed meeting and talking to them. The principal presented me with a note of thanks from each student in the school. I had not expected that and was frankly overwhelmed with gratitude. I think I have found a calling. Enjoy
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02-28-2020 05:42 PM #480
I am looking for a solution to the battery box in my 33. I have mocked one up, intending to construct it out of carbon fiber, but I wonder if any of you might have good looking solutions you have discovered or developed?
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