Mercruiser 5.0/5.7 EFI Timing

mckaras

Petty Officer 2nd Class
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Apr 21, 2020
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121
I am looking to set my 5.0 EFI into time, I am not sure if it is the same as for the 5.0 Carb'd version or not... Please advise if you have a manual or timing specs for the 5.0 EFI/5.7 EFI engine.
 

alldodge

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If EFI means TBI the your at 8*, but would help with serial number?

Also needs to be placed in base timing mode
 

mckaras

Petty Officer 2nd Class
Joined
Apr 21, 2020
Messages
121
If EFI means TBI the your at 8*, but would help with serial number?

Also needs to be placed in base timing mode
Engine Serial Number is 0M015812. 8* ATDC or BTDC? Base timing is standard across all 5.0/5.7 for EFI, FI, and Carb'd correct?
 

alldodge

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Staff member
Joined
Mar 8, 2009
Messages
42,936
8* BTDC
S/N list TBI and its not the same across the board.
Carb is 10* include inboard
TBI and MPI is 8*
Inboard MPI is 10*

This does not include MPI motors after 2001 with flat distributor cap

To place in base timing jump pins A and B on the DLC connector
DLC base timing.jpg
 
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