TM-9-2350-274-BD
M109/M110/M578 VEHICLES HOWITZER, MEDIUM, SELF-PROPELLED FULL-TRACKED
TECHNICAL MANUAL; OPERATORS, ORGANIZATIONAL DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
JANUARY 1984
TM-9-2350-274-BD - Page 53 of 219
TM 9-2350-274-BD
ENGINE
SECTION II. Engine Failure
3-4. ENGINE SUBSTITUTIONS
General Information
Availability of engines may become restricted to those found in damaged vehicles. Basic
engines from other vehicles can be modified or configurations rearranged to fit the
vehicle needing the engine (8V71T model 7083 engine will fit M107, M109, M110, Howit-
zer, M578 Recovery Vehicle, and some NATO vehicles). The main difference of the 8V71T
❚
series is the turbocharger system. When substituting a replacement engine it may be nec-
essary to remove the turbocharger system from the original engine and put on the substi-
tution engine. The limiting speed dual–range governor (Recovery Vehicle M578 only) per-
forms the same function as the limiting speed governor with the additional capability of
limiting the maximum engine speed at two different values. A non–turbocharged engine
can also be used as a substitute but the original turbocharger system must not be in-
stalled on the non–turbocharged version. Cooling and exhaust connections may require
improvisation to complete the installation.
Limitations:
●
Possible degraded mobility
Personnel/Time Required:
●
3 Soldiers
●
6 hours
Materials/Tools:
●
Engine - M107, M109, M110, M578, or M975
●
Lift capability
Procedural Steps:
1.
Remove powerpack.
2.
Separate engine from the transfer case.
3.
Place the substitute engine beside the original engine.
Change 3
3–3
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