Mercruiser 5.0/5.7 EFI Timing

mckaras

Cadet
Joined
Apr 21, 2020
Messages
21
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

Supreme Mariner
Joined
Mar 8, 2009
Messages
34,060
If EFI means TBI the your at 8*, but would help with serial number?

Also needs to be placed in base timing mode
 

mckaras

Cadet
Joined
Apr 21, 2020
Messages
21
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

Supreme Mariner
Joined
Mar 8, 2009
Messages
34,060
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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