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05-12-2013, 01:48 PM
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#1 |
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VIP Member
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Location: Richmond Hill, Georgia
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Even my luck is good somtimes. Cracked bedplate and mainweb
I usually have to manufacture any good luck. But I've had a drop in oil pressure for most of this season. I've changed oil brands, rod bearings, even changed the oil pump, and the gauge. With no change.
I used to have 35 pounds at idle hot, now it dropped to 20 hot. 80 pounds cold, now 60 pounds cold. I pulled the motor to look at the main bearings. Pulled off the bed plate, and had one bearing stay on the crank (#5). Looked at it and it was worn thru to the copper on the front half of the bearing. I proceed to look at the other bearings and they seem okay. As I push them out and clean and number them. I notice a ridge across the back of the bearing paralel with the crank. I look and sure enough I find a crack in the bedplate main webbing. Upon further inspection I find 2 other cracks in the bedplate main webbing. And a crack in the block main webbing on number 3 (right across the oil feed obviously the cause of the low pressure). I haven't inspected the crank yet, but it doesn't look bad. I'm so glad I found this before it puked all over the race track. And I blamed a connecting rod or something else for the catastropy My question is has any one else had this happen? I'm trying to figure why?
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Art Leong 2095 SS |
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05-12-2013, 02:37 PM
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#2 |
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Join Date: Mar 2006
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Re: Even my luck is good somtimes. Cracked bedplate and main
Art,
What engine? Sorry to hear the news. Sean
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Sean Marconette 84 Mustang 5060 SS/N |
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05-12-2013, 02:42 PM
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#3 | |
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Re: Even my luck is good somtimes. Cracked bedplate and main
Quote:
It was actually good news. I'll have to replace the block. But if I had kept running it I'm sure it would have scrapped the whole motor.
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Art Leong 2095 SS |
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05-16-2013, 02:45 PM
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#4 |
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Re: Even my luck is good somtimes. Cracked bedplate and main
Crank checked out perfect.
Now I have to guess what caused the block failure.
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Art Leong 2095 SS |
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05-16-2013, 03:29 PM
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#5 | |
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Join Date: Jun 2007
Location: Toms River NJ
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Re: Even my luck is good somtimes. Cracked bedplate and main
Quote:
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Dennis P Chapman 1904 STK NHRA National Record Holder Car Owner. |
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05-16-2013, 04:20 PM
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#6 |
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Senior Member
Join Date: Feb 2002
Location: Southeast Michigan
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Re: Even my luck is good somtimes. Cracked bedplate and main
How well is the engine balanced ?
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