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Discussion Topic:
flathead running poorly
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4dFordSC |
09-16-2019 @ 8:40 AM
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Member
Posts: 266
Joined: Oct 2009
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IMHO, if removing the plug wires from the conduits makes a difference, you need new wires.
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rustedorrotting |
09-16-2019 @ 3:37 PM
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New Member
Posts: 124
Joined: Mar 2010
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well, everything just came to an abrupt stop, it has a rod knock. polite conversation won't let me say how i feel. can i get the pan off in the frame? I put a new power valve in and took the tubes off the manifold and ran a wire loom that wont let the wires touch. started it and still back firing, but i had put MMO in the gas tank. When i started it, it would idle fairly good and as it sat there and ran, the backfiring got less and less. Also the fuel pressure stays at 2 pounds even when i shut it off. Any body have a good crank and bearings?
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rustedorrotting |
10-28-2019 @ 8:22 AM
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New Member
Posts: 124
Joined: Mar 2010
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found the problem, power valve was leaking and diluted the oil. found out when the rods started knocking. I have pulled the motor and put it on a stand and pulled a main and a rod cap. There are no marks on either bearing indicating size. also how do the rod bearings keep from turning? there are no tabs to prevent this.
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carcrazy |
10-28-2019 @ 10:25 AM
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Senior
Posts: 1567
Joined: Oct 2009
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The rod bearings in the pre-1949 passenger car and pre-1948 truck engines rotate. These engines have the full floating rod bearings which are free to turn between the rod journals and the rods. This is a very good setup much like the bearings used in turbochargers which have turbines that spin at incredibly high RPMs.
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