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TECH INFO: Alco Diesels

This section is being developed to hold technical information useful to people using, restoring, and maintaining various types of railroad equipment. Please use the feedback form if you have information you would like posted here.

Maintenance Information

Description	Source	publication #
Locomotive Inspection: Tips from an Expert	Steve Lee (UPRR)		locoinsp.htm

Tool Information

251 only

Tool	notes	publication #
Overview of Barring Tool and Jack for 251B,C	Alco pn 2290052-1 and 2290057	Alco NT2A (p. 251W-1)	251bar_ov1.gif 251bar_ov2.gif
Barring Tool for 251B,C	flywheel groove type	various	complete, dimensioned drawings available on request
Barring Jack for 251B,C (photos)	for above		treadle.jpg pushrod.jpg
Barring Jack for 251B,C (drawings)	for above	Alco Bulletin #43	alco_bul43_p1.jpg alco_bul43_f1.jpg alco_bul43_f2a.jpg alco_bul43_f2b.jpg alco_bul43_f3.jpg

Sincere thanks to Kevin McGarvey of Livonia, Avon and Lakeville RR for Alco bulletin #43.

244 only

I hope to be cleaning up and adding detail to the sketches listed, and creating drawings of the missing items soon.

Tool	notes	publication #
Power assembly lifter	based on Alco 2470401	Tool catalog NT2, page 8	244lifter.jpg (51kB)
	bolts for rod blocks; length is approximate!	item B-4	244connbolt.gif
	rod blocks	item B-2	244blockside.gif 244blocktop.gif
	piston lifting plate	items B-5,6	working on it
	liner lifting plate	item B-1	working on it
	rod bearing retainers	item B-3	working on it
Head lifter	similar to Alco 2470441		244headtop.gif 244headend.gif

Thanks very much to Carl Weber Jr. and Howard Pincus of the RR Museum of New England for sketches of 244 tools.

244 or 251

Tool	notes	publication #
Ring Compressor	made from 244 or 251 liner	GE EB-56	.tif file (239kB)

244, 251, or 539

Tool	notes	for	publication #
Valve Cage Tool	for WABCo 3CD Compressors	-	-	3cdtool.htm
Injector Test Stand	based on Alco 2470513	244, 251,539	Alco NT2A (p. 251J-14)	injtest.htm
	overview picture			251j-14.jpg
	pump mounting base			pump_base.gif
	pump spacer blocks			pump_spacers.gif
	pump actuating plunger			pump_plunger.gif
	pump actuating cam			pump_cam.gif
	fuel supply fitting			fuel_inlet.gif
	fuel delivery block (old style)			delivery_block.gif
	fuel delivery coupling			coupling.gif
	improved delivery block			new_block.gif
	delivery valve holder details			pump_cc.jpg pump_cq.jpg pump_d.jpg
	fuel tubing (sketch of 539/244)			tubing.gif

Sincere appreciation to BC Clark of the Hobo RR for assistance with Alco tool manuals.

 

Notes on using these files

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