missing 460
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From: heart of texas
missing 460
I just got a 1973 f-250 with a 460. in checking the engine out I discovered it has a miss in the #4 and #7 cyl. I ran a compression check on all cyl. and they were really close. #1-135 #2-135 #3-135 #4-134 #5-136 #6-135 #7-135 #8-135. I put a new set of plugs in. autolite 25 , new wires, cap, rotor, and coil. still missing on same cyl. replaced plugs with equal on ac delco. still missing. when I get to a fast idle it acts like its trying to level out but as soon as I idle it back down . same dead miss. cant find a vac leak. is it possible that carb could be causing this. all other cyl are firing strong. just these 2. any help would be wonderful
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From: heart of texas
I havnt tried that. Both haynes manual and on manifold have same order so I never second guessed it. But will try just for giggles to rule it out. Thanks
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From: heart of texas
ok I tried the 4-7 swap. no change in the engine what so ever. my next move is to pull the intake off. maybe a vac leak. the 7 and 4 cyl are on the same rear channel of the intake. any ideas would be great and thanks for the ideas. 
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99Diesel
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
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Jul 17, 2003 06:07 PM
