proving a friend wrong help me out
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Senior User
Joined: Dec 2011
Posts: 180
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proving a friend wrong help me out
so my friend thinks taking a 7.3 engine from a manual truck will not work in a truck with a automatic transmission. I'm telling him it will work i would just need to swap the flywheel with a flex plate.
He thinks i will need to change the whole truck to a manual gear shifter transmission etc
so help me out
He thinks i will need to change the whole truck to a manual gear shifter transmission etc
so help me out
Laughing Gas
Joined: Oct 2009
Posts: 831
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From: Vacaville, CA
Postmaster
Joined: Jan 2012
Posts: 2,693
Likes: 3
From: West of Chicago
Remind your friend from all of us to check his muffler bearings and blinker fluid! The only gears in the motor is the timing components.
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Senior User
Joined: Dec 2011
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yea when i get the engine i will be inviting my friend over to show him both the engines to compare
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Senior User
Joined: Apr 2009
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our trucks do have muffler bearings there just inside the turbo! Have you ever heard a strait piped none turboed diesel? They are loud! Where i can run a strait pipe behind my turbo with 4 inch pipes and its not to bad. As for this guy thinking the engines are different because of what they had behind them please keep him away from the tools only bad things will happen.
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Postmaster
Joined: Jan 2012
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From: West of Chicago
One thing that was not mentioned was, What year is the truck needing the motor? and what year is the donor motor E99 L99.5-03? I know there is some differences in the wiring and the tuning. The E99 has s a smaller turbo and different Up pipe design as well as a different intake. None of that should be an issue since you have a complete donor truck.
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Senior User
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One thing that was not mentioned was, What year is the truck needing the motor? and what year is the donor motor E99 L99.5-03? I know there is some differences in the wiring and the tuning. The E99 has s a smaller turbo and different Up pipe design as well as a different intake. None of that should be an issue since you have a complete donor truck.
its from a 2001 same year as my truck
Cargo Master
Joined: Oct 2007
Posts: 2,712
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From: BoCoMo
While the engine is out, check the date on the transmission and see if it has the 'mechanical diode'. Also, put in a 6.0 trans cooler in the front.
Cargo Master
Joined: Oct 2010
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At one time, I worked at a place where we had 2 different models of the same Detroit engine. One of the applications was RH rotation and one was LH rotation. Some of the parts depended on the rotation. One of the old guys was asked was it rh or lh rotation? He left and came back and said both. For hours, he argued that point based off the fact that it spun lh on the crank pulley and rh on the flywheel side.
We never did get him to see it and finally decided that maybe he did not need to do anymore internal engine work.
We never did get him to see it and finally decided that maybe he did not need to do anymore internal engine work.
Senior User
Joined: May 2011
Posts: 454
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From: Portland, OR
At one time, I worked at a place where we had 2 different models of the same Detroit engine. One of the applications was RH rotation and one was LH rotation. Some of the parts depended on the rotation. One of the old guys was asked was it rh or lh rotation? He left and came back and said both. For hours, he argued that point based off the fact that it spun lh on the crank pulley and rh on the flywheel side.
We never did get him to see it and finally decided that maybe he did not need to do anymore internal engine work.
We never did get him to see it and finally decided that maybe he did not need to do anymore internal engine work.
Butt-Head
Joined: Apr 2004
Posts: 9,448
Likes: 2,934
From: Reed Point, MT
You forgot something....
Going from an automatic to a manual is easier than the other way around:
The automatic trucks have a spacer/adapter plate between the engine block and the bellhousing. The dowel pins that locate the adapter and the bellhousing are quite a bit longer than the dowels for the manual trucks and they are a pain in the butt to remove. When going to a manual, it's no big deal to just leave the longer dowels, but they can cause a bit of trouble when lining everything up (just for oil pan/cab clearance reasons).
When going to an automatic from a manual, there can be engine/transmission alignment issues because there's literally nothing to line up the transmission bellhousing to when there's no dowel pins sticking through the adapter. Like I said before, the dowels can be a huge PITA to remove and there aren't any holes in the forward-facing side of the block to drive them out so they can be replaced with the longer automatic transmission ones.
Going from an automatic to a manual is easier than the other way around:
The automatic trucks have a spacer/adapter plate between the engine block and the bellhousing. The dowel pins that locate the adapter and the bellhousing are quite a bit longer than the dowels for the manual trucks and they are a pain in the butt to remove. When going to a manual, it's no big deal to just leave the longer dowels, but they can cause a bit of trouble when lining everything up (just for oil pan/cab clearance reasons).
When going to an automatic from a manual, there can be engine/transmission alignment issues because there's literally nothing to line up the transmission bellhousing to when there's no dowel pins sticking through the adapter. Like I said before, the dowels can be a huge PITA to remove and there aren't any holes in the forward-facing side of the block to drive them out so they can be replaced with the longer automatic transmission ones.
Laughing Gas
Joined: Aug 2010
Posts: 1,098
Likes: 6
From: Ventura co.
I believe your friend is right for once..
The manual trans motors used a 68 gram piston return spring.
The auto use's a 54 gram spring.
Make sure you get the new Radiator cap jack. it makes it way easier to get the cap off the bottle..
The manual trans motors used a 68 gram piston return spring.
The auto use's a 54 gram spring.
Make sure you get the new Radiator cap jack. it makes it way easier to get the cap off the bottle..