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-   -   Distributor Gear Failure on 454 Mag EFI (https://www.offshoreonly.com/forums/general-q/25280-distributor-gear-failure-454-mag-efi.html)

caldera 10-14-2017 08:45 PM

When i disconnect wires from this engine cant start the other one. I never had twin engine experience. Maybe this one was primary so that's why cut out electricity. Batteries are good. Just interior lights are working. Any ideas?

mike tkach 10-14-2017 08:47 PM


Originally Posted by veloc410 (Post 4587963)
that cam has been cracked for a while look at the color of the broken face .if it just happened it would not be dark. How on earth did you get that piece out. Dist.hole? It must have still been in place. Was ot still in place and just broken??

i disagree with you,r color statement,if you drop a brand new iron core camshaft on the concrete floor and brake it this is what it will look like.

veloc410 10-14-2017 08:59 PM


Originally Posted by mike tkach (Post 4587972)
i disagree with you,r color statement,if you drop a brand new iron core camshaft on the concrete floor and brake it this is what it will look like.

🤔🤔maybe. But he did state that the lifters were loose and I don't think the dist. could do that . What do yo think happened.? He hasnt mentioned whether it turns over by hand or if the piston are all moving. Like I said earlier, broken rod?? No much anything else could have done that. W don't have full pic yet . But he needs some help. New long block , bolt on old accessories and drop it in. Not gping to be simple fix.👍

caldera 10-14-2017 09:09 PM

Which one is mine long ​​​​​​or short block? Im confused already..

Pistons are good. When i turned crank they all moved.

veloc410 10-14-2017 09:13 PM


Originally Posted by caldera (Post 4587976)
Which one is mine long ​​​​​​or short block? Im confused already..

Pistons are good. When i turned crank they all moved.

You don't know what's wrong or what damage has been done. Pull it out . I bet cam hole at back is broke out. Anyway it might be easier and only cost a 300 more to by long block. You were talki nh about rebuilding just by a long block

veloc410 10-14-2017 09:14 PM


Originally Posted by caldera (Post 4587976)
Which one is mine long ​​​​​​or short block? Im confused already..

Pistons are good. When i turned crank they all moved.

You don't know what's wrong or what damage has been done. Pull it out . I bet cam hole at back is broke out. Anyway it might be easier and only cost a 300 more to by long block. You were talki nh about rebuilding just by a long block. Remanufactured

caldera 10-14-2017 09:51 PM


Originally Posted by veloc410 (Post 4587979)
You don't know what's wrong or what damage has been done. Pull it out . I bet cam hole at back is broke out. Anyway it might be easier and only cost a 300 more to by long block. You were talki nh about rebuilding just by a long block. Remanufactured

Standard rotation long block?

veloc410 10-14-2017 09:55 PM


Originally Posted by caldera (Post 4587982)
Standard rotation long block?

what year is it. Do some research. Counter rotating props, transmissions. Better ask around and yes those are small block chevys

caldera 10-14-2017 10:00 PM


Originally Posted by veloc410 (Post 4587983)
what year is it. Do some research. Counter rotating props, transmissions. Better ask around

Thats why i hate to replace block.. New engines require electrical fuel pumps and also different type manifolds or cooling systems..

veloc410 10-14-2017 10:03 PM


Originally Posted by caldera (Post 4587984)
Thats why i hate to replace block.. New engines require electrical fuel pumps and also different type manifolds or cooling systems..

what year is it . I saw flat tappet cam with carburetor. Those aren't expensive. Every one has them Google it. Even summit racing equipment


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