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Unusual block issue

June 15 2017 at 4:27 PM

Barry R  (Login Barry_R)
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Never seen this one before.

Block is 1969. Core, so I have no history. Shows signs of a light hit in #8.

See anything Unusual?

[linked image]
Barry Rabotnick
Survivalmotorsports.com


    
This message has been edited by Barry_R on Jun 15, 2017 4:35 PM


 
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AuthorReply
Tom P
(Login tomposthuma)
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#4 cam bearing bore?

June 15 2017, 4:37 PM 

What do I win?

 
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Barry R
(Login Barry_R)
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Halfway home

June 15 2017, 4:42 PM 

Now look at number 5. Remember that this is a 390. Center oiler. The main gets oil from the...
Barry Rabotnick
Survivalmotorsports.com

 
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Rory McNeil
(Login RM428)
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Sleeve

June 15 2017, 4:43 PM 

Looks like a thinwall sleeve in #4 cylinder.
428 powered Fairmont drag car, Best ET:9.97 @132.56MPH, best 60 ft: 1.29
59 Meteor 2 dr. sedan 332, Ford O Matic
74 F350 ramp truck 390 4speed
1985 Mustang 331 4 speed Best ET10.29at 128.7mph, 1.40 69 foot

 
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Barry R
(Login Barry_R)
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No sleeve

June 15 2017, 5:03 PM 

But how does #5 main get any oil?
Barry Rabotnick
Survivalmotorsports.com

 
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motorhead67
(Login motorhead67)
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#5 main oiling

June 15 2017, 5:30 PM 

Two possible ways to oil number 5 main. 1. Grooved #5 cam journal and or #5 cam bearing. 2. Rod bearing oil passages connected on that journal ( like a porsche ). Or a factory defective block ?

 
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Barry_R
(Login Barry_R)
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My best guess

June 15 2017, 6:24 PM 

is like your comment - factory off line "repair" might have been a grooved rear cam journal. Quick, easy with existing products. Then upon rebuilding it probably failed quickly and was parked on the side for who knows how long.
Barry Rabotnick
Survivalmotorsports.com

 
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Stangman
(Login 4828Stangman)
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Best Guess

June 15 2017, 6:35 PM 

Hey at least you caught it. It could have been bad

 
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Jason
(Login 60sIron)
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Grooved Cam Journal

June 15 2017, 7:03 PM 

Didn't some FEs come with grooved cam journals?

 
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Barry_R
(Login Barry_R)
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Yes - but in number two and number four

June 16 2017, 2:40 AM 

to feed the overhead on sideoilers. I've never seen one grooved in number five.
Barry Rabotnick
Survivalmotorsports.com

 
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Chris McAlpine
(Login chris401)
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Seems Far Fetched

June 16 2017, 3:12 AM 

But could it be possible that there was enough oil bleed from #4 rod journal that it kept #8 lubed and forced some oil down to #5 main?

 
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Jason
(Login 60sIron)
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Re: Seems Far Fetched

June 16 2017, 8:43 AM 

Most cranks weren't drilled from #4 Rod to #5 Main. Oil for #4 Rod came from #4 main. However, if the crank was drilled that way, it would provide oil to #5 main.

 
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MikeR
(Login mikes65)
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Machining needed. I would bet that #4 CB will be tight too.. n/m

June 16 2017, 9:35 AM 



    
This message has been edited by mikes65 on Jun 16, 2017 9:38 AM


 
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Chris McAlpine
(Login chris401)
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Take Another Look

June 16 2017, 10:52 AM 

We are saying the same thing. There are no cranks I know of that intentionally oil that way either. I should have said oil up to #5 main sense the oil would be going against inertia.

 
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Mario428
(Login Mario428)
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My fix

June 17 2017, 4:10 AM 

Yours is easier to fix than mine was. Grind an oil feed groove.
My Fix,
[IMG][linked image][/IMG]

[IMG][linked image][/IMG]

 
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Dennis
(Login tbolt2)
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Re: Unusual block issue ... Barry R. ...

June 17 2017, 6:29 AM 

Is there any evidence of an engine assy date / inspector code or VIN on this cyl block? Or history that the cyl block actually came from a vehicle? Any repair process would have to been developed, verified, then signed off. I doubt no one would of wrote a pink deviation form to repair only one cyl block, too much time and effort involved, over the value.

It's possible this cyl block was scrapped at DEP, then was sold to a Ford Reman for disposition/repair, then somehow was "liberated" from there. Recall the 427 cyl blocks that went to Fred Jones with missing tapped holes, broken taps in the cyl block, oil passages that leaked, etc. ... . Years ago, I set up a program to ship our scrap production torque converters to FAR - Alma Products, who would cut them open and salvage usable "premium" internal components for remanufacturing other converters.

Regards,
Dennis

 
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marc
(Login FEworkbench)
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ez

June 17 2017, 6:42 PM 

On the bridgeport and some willy time and your golden!!
[linked image]

 
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FERoadster
(Login FERoadster)
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Is that one of the blocks

June 18 2017, 9:53 PM 

I brought back last May? They were scrap yard blocks I pulled put of Vehicles.

Richard >>> FERoadster.


 
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Barry_R
(Login Barry_R)
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Honestly do not know the source

June 19 2017, 4:03 AM 

It has a "9H7" 1969 date code - really nothing unusual until we found that odd issue. So anything is possible. We know that it was running at one point, and that it got previously rebuilt at least once (overbored). Beyond that is only guesswork.
Barry Rabotnick
Survivalmotorsports.com


    
This message has been edited by Barry_R on Jun 19, 2017 4:04 AM


 
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Bart
(Login RATPOISON511)
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And It Ran

June 19 2017, 8:53 PM 

Back in the middle 50's I saw a early Cadillac crank that had one journal with no oil hole. How it ran without the hole, God knows. The bearing looked great. Evidently it ran on the splash from the adjacent rod.

 
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