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Old 07-19-2020, 09:53 PM   #41
Mercmarc
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Default Re: Camshaft Movement

Hello Bored&Stroked,

I believe you have hit the proverbial nail on the head perfectly. I do not see a hole in the end of the cam adapter where oil under pressure would limit metal to metal contact on the timing case cover and what you are describing makes perfect sense. Yes the mounting bolts did hit and grind away a section of the cast iron cover.
Your explanation of the related oil filtration system is also spot on. :-) And I concur, three main bearings and only two benefiting from a filter equals 66% filtration. This is why I was so upset over finding the amount of metal missing and knowing where it ended up, that the rest of the engine has little value or reliability without complete teardown, cleaning and evaluation.
Your explanation about the importance of and changes Ford made regarding to cam thrust is greatly appreciated and very helpful. My abilities to build an engine today have since passed and I will be leaning on professionals to do so as much as it pains me. I have done the majority of the other work on the car minus the overhauling of a rear end, the upholstery and paint. Frame off redo to create a daily driver for my wife and I.

I am contacting H&H on Monday to see what if anything they can do for this engine. If nothing is the result, then I will be making other tough decisions.

Thank you very much for detailing what I knew and saw but did not know why.

Sincerely and respectfully

Marc
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Old 07-20-2020, 12:10 PM   #42
Bored&Stroked
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Default Re: Camshaft Movement

I'm not one to bash anybody, but when one is paying an engine builder to build you an engine - they should at least know "what works with what".

And if the customer wants a bad/wrong combination, you refuse to do it. And when you make a mistake (and we all do), you make it right . . . simple business 101.

If you have any questions, feel free to PM me.
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Old 07-20-2020, 05:15 PM   #43
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Default Re: Camshaft Movement

I wonder why an early camshaft + adapter was used (twice!) rather than the correct 8BA style which is correct for this engine. That really puzzles me...


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Old 07-20-2020, 08:12 PM   #44
Mercmarc
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Default Re: Camshaft Movement

Hello Terry, cadillac512
Great question and one I intend to ask the builder. Especially after the fist one failed. I am also curious if these are the only two engines he built this way.

Respectfully

Marc
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Old 08-03-2020, 03:29 PM   #45
Mercmarc
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Default Re: Camshaft Movement

Hello To everyone who weighed in on this cam movement thread.

Wrap up:

The cause of the cam movement as mentioned by several, is a case of using the wrong parts for the application without the proper modifications. Early cam and adapter with no provision for oiling the front of the cam and distributor area. I have yet to determine why the builder chose to use the parts he did, but says he will stand behind his build.

I am very grateful to all who participated in this thread.

Respectfully

Marc
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Old 08-03-2020, 03:32 PM   #46
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Default Re: Camshaft Movement

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Marc,

Thanks for getting back to us on this. It's always good to find out what really was going on.
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