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Distributor Gear Failure on 454 Mag EFI

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Old 10-04-2017, 06:35 PM
  #31
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It's a hard read, so I just threw something that has happened against the wall.
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Old 10-04-2017, 06:36 PM
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Originally Posted by veloc410 View Post
oh. All intact. Gear still on distributor shaft. Maybe just a broken split pin on the gear. It's a shear pin goes thru the shaft and gear
Wow maybe u are right and its broken pin on the distributor gear. I will check it!
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Old 10-04-2017, 06:39 PM
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Wow maybe u are right and its broken pin on the distributor gear. I will check it!
lol post some pics like he said. The gear could be spinning or something wrong at top of distributor
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Old 10-04-2017, 08:27 PM
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lol post some pics like he said. The gear could be spinning or something wrong at top of distributor
I buy cam with display in home depot and going to see what's going inside... Checked distributor second time, pin is on place.
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Old 10-05-2017, 01:13 AM
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ok, this is outdrive boat, correct? you need the pan essentially off to get timing cover off. if you have a car cherry picker, you can get it up enough to get pan, timing cover, and rotate motor till cam comes out. but if this is the hard cam gear, chances are cam is ok. just eats every dist gear that is softer. what gen motor? might be able to shine flashlight down distrib hole and crank motor to check if gear is ok, and turning. but if pin breaks, it retards cam 4 to 6 extra degrees, till the bolts let go.
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Old 10-05-2017, 04:18 AM
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ok, this is outdrive boat, correct? you need the pan essentially off to get timing cover off. if you have a car cherry picker, you can get it up enough to get pan, timing cover, and rotate motor till cam comes out. but if this is the hard cam gear, chances are cam is ok. just eats every dist gear that is softer. what gen motor? might be able to shine flashlight down distrib hole and crank motor to check if gear is ok, and turning. but if pin breaks, it retards cam 4 to 6 extra degrees, till the bolts let go.
No sterndrive. Its straight shaft thats why i hit bottom.
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Old 10-05-2017, 06:12 AM
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Ok, looked at pics of your boat. You will have a very hard time lifting that motor yourself. Weight for block-heads-intake is about 700 lbs. 900 with trans still attached. Engine is dead center in the boat. You need a boom truck to lift engine AND you need to replace or repair the 1 prop you used as a depthfinder. Props are not very good depthfinders. This boat has to come out of the water at a marina that can lift the engine out for you.
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Last edited by dereknkathy; 10-05-2017 at 06:30 AM.
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Old 10-05-2017, 06:33 AM
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Originally Posted by dereknkathy View Post
Ok, looked at pics of your boat. You will have a very hard time lifting that motor yourself. Weight for block-heads-intake is about 700 lbs. 900 with trans still attached. Engine is dead center in the boat. You need a boom truck to lift engine AND you need to replace or repair the 1 prop you used as a depthfinder. Props are not very good depthfinders. This boat has to come out of the water at a marina that can lift the engine out for you.
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Thanks. I have a same plan. In Marina they have big forklift so it will be very easy to pull out engine .
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Old 10-05-2017, 06:40 AM
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Start looking for people who can repair that prop now. You don't need to pull the boat, send prop off, repair engine, and still be waiting for the prop to be done...

Last edited by dereknkathy; 10-06-2017 at 09:31 AM.
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Old 10-05-2017, 06:03 PM
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Start looking for people who can repair that prop now. You don't need to pull the biat, send prop off, repair engine, and still be waiting for the prop to be done...
do you think it's the timing chain?? Ouch.
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