From: Glen Bedel (GBedel@designforum.com)
Date: Tue Aug 19 2003 - 11:05:18 PDT
-----Original Message-----
From: Powermaster@cummins.com [mailto:Powermaster@cummins.com]
Sent: Tuesday, August 19, 2003 2:03 PM
To: GBedel@designforum.com
Subject: Re: RQST00000169662 - NHC 250 engine manual
Summary: NHC 250 engine manual
Solution:
Thanks for your Email message.
The Cummins NH250 engine is 855 c.i.d. small (2 in.) camshaft engine rated
250 hp @ 2100 rpm with 654 lb-ft torque @ 1500 rpm and clutch engagement
torque at 600 lb-ft @ 800 rpm. The engine weighs 2500 lbs. and is naturally
aspirated with a 6 gal lube system. The engine is still in production
mostly for military applications and there should be no problems finding
replacement parts for this engine model.
In the NHC250 era, some applications needed a way to supply more air to the
engine to help eliminate black smoke problems, especially in higher
altitudes and Cummins developed a turbocharger 'smoke kit'. The kit included
all the components required to install the turbocharger on the engine, as
well as information about required changes to the fuel pump and injector
settings that increased engine horsepower from 250 to 270 hp. Some Cummins
distributors may still have the Service/Parts Topic that provides the
details of the 'smoke kit'.
According to Cummins Service/Parts Topic 73T10-1 dated January 1973, Cummins
Service/Parts Topic 72T18-1 dated June 1972 contains comprehensive details
of ratings, fuel pump codes and specifications/part number of the
significant components of all recent NH and NT models. These topics indicate
that naturally aspirated engines should be derated 3 % for each 1000 feet in
altitude.
We also have a more current bulletin no. 3379020-00 dated April 1975 titled:
NH220/230 and NHC250 Turbocharger Conversion Kits. This bulletin has
comprehensive part numbers, instructions and information about components
and changes required to install the turbocharger smoke kits on these engine
models. Your local Cummins distributor should have this bulletin in their
files and can determine if the parts are available or if current parts can
be used.
If the above topics are not available, then the Cummins distributor may want
to refer to Cummins parts catalog 3379590-00 dated March 1979. This parts
book covers the Cummins Small Cam NT-855 model engines for automotive
applications which includes NTC-250 and NHCT-270 engines.
Gannett Direct Marketing in Louisville, KY, handles all Cummins literature.
If a payment arrangement is worked out, by credit card, they can arrange
shipment of Cummins literature.
However, they deal in bulletin numbers, so before you call you need to have
all the bulletin numbers ready for the literature you need. You can reach
Gannett by calling 1-800-646-5609 or call 1-800-DIESELS and select the
literature option or email to inquiry@gdms.com .
The current Cummins manuals for the NH/NT 855 c.i.d. engines are:
Shop Manual (H/NH/NT 4 7/8 & 5 1/8
bore)...................................... ..3379067
(NH/NT/NTA 5 1/2
bore)............................................. ..3379076
(Big Cam IV, New Big Cam IV,88 NT 5 1/2 bore..........
..3810395
Troubleshooting and Repair (Big Cam
III)......................................... ..3810298
" (Big Cam IV,
88NT)...............................3810366
Operation and Maintenance (Automotive US & Canada)................. ..
..3810238
(
International).................... ..3810249
(Construction &
Industrial...................... .3810253
( Big Cam IV - NTC
444)...........................3810306
Marine
.....3666077
Parts Book (automotive, construction, industrial) FFC engines...............
3379528
Non-FFC engines....3379512
(automotive - Big Cam ) .......................FFC
engines............. 3379509
(Marine) NT855... 3884203
NTA8553884298
" (H,NH 5 1/8 bore 743 cu.in.
engines)........................ 967108-A
" (NT " " "
).................................... 967107
To order these manuals, you can call Gannett Direct Marketing Service in
Louisville, KY. They handle all Cummins literature and can be reached at
1-800-345-5654 or by calling 1-800-DIESELS and selecting the literature
option on the menu.
If you need to contact them by email, the address is: inquiry@gdms.com
We thank you for your interest in Cummins products. Please let us know if
you need assistance in locating the nearest Cummins-authorized Dealer or
Distributor Service Provider. For assistance in locating a Service Provider,
feel free to use Cummins North America Dealer Locator, which can be found on
Cummins website:
http://www.cummins.com/service_locator/index.cfm
This site can be found on the "Service Locator" link, at Cummins North
America website:
http://www.cummins.com/na/pages/en/index.cfm
For service locations and Cummins Regional Offices, outside North America,
you may select the region of the world in which you have an interest, by
using the following Cummins website and click on the "view distributor
network" button:
<http://www.cummins.com/index.cfm?changecountry=true>
Please let us know if you have other questions and if away from your
computer or have a time-critical request that needs more urgent attention,
feel free to call us toll-free (from North America) at 1-800-DIESELS
(343-7357). Customers may also call Cummins switchboard 1-812-377-5000
(worldwide toll call) and ask for the 800-DIESELS Call Center for
assistance.
Cummins Email (via webpage):
<http://www.cummins.com/na/pages/en/customerassistance/index.cfm>
Email direct: powermaster@cummins.com
Regards,
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Details: I'm Looking for Information on this engine please.
Where can I find a tech. manual on it?
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