Would it be any way possible to swap a 300D IP with a OM606 to make gains in HP? If so, I know there are 6 fuel injectors due to the 6 Cyl. engine of the 606. How would I be able to bypass that with my 5 Cyl. 300D?

300Ds came in 5 and 6 cylinder varieties but assuming yours is 5 like you mentioned you need a 5 cylinder pump as a 6 on a 5 will only be timed correctly on cylinder #1. If your engine is the OM617 then OM60x pumps won't fit on either

__________________
1978 300D, 373,000km 617.912, 711.113 5 speed, 7.5mm superpump, HX30W turbo...many, many years in the making....
1977 280> 300D - 500,000km+ (to be sold...)
1984 240TD>300TD 121,000 miles, *gone*
1977 250 parts car
1988 Toyota Corona 2.0D *gone*
1975 FJ45>HJ45
1981 200>240D (to be sold...)
1999 Hyundai Lantra 1.6 *gone*
1980s Lansing Bagnall FOER 5.2 Forklift (the Mk2 engine hoist)
2001 Holden Rodeo 4JB1T 2WD

My 92 300D has the OM602 engine in it.

You cannot use a 6 cylinder pump on a 5 cylinder engine period. The camshaft timing in the pump is wrong and there is no way to "bypass" it to make it work on the 5 cylinder. A 5 cylinder engine requires a 5 cylinder pump.

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Current stable:
1995 E320 157K (Nancy)
1983 500SL 125K (SLoL)

Gone but not forgotten:
1986 300SDL (RIP)
1991 350SD
1991 560SEL
1990 560SEL
1986 500SEL Euro (Rusted to nothing at 47K!)

Gone and wanting to forget:
1985 524TD 167K (TotalDumpster™) [Definitely NOT a Benz]

OM602 should have a M pump, 5.5mm elements. You can buy someone's surplus 6mm M pump elements and have a shop swap them in and calibrate the pump.

It'll run you several hundred dollars all together.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

Just get a 605 pump from someone in Europe

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1987 300D 180k
1985 300SD 330k Helga
1992 300D Lola 269k- Sold
1986 325 coupe Bessie >300k Original engine(ODO Broke) sold
2006 2500HD Druamax Linda- Tows boat and looks pretty in garage thats about it

Would be cheaper to add an EGT gauge (which you'd need to do anyway), turn up the turbo boost, and turn up the fuel by adjusting the IP governor. You'd also want to advance the IP timing a bit, maybe advance the camshaft timing a bit as well.

Modest gains are possible for little cost.

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Respectfully,
/s/
M. Dillon
'87 124.193 (300TD) "White Whale", ~392k miles, 3.5l IP fitted
'95 124.131 (E300) "Sapphire", 380k miles
'73 Balboa 20 "Sanctification"
Charleston SC