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#1
23-10-10, 09:53
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Chev radiator fan
Which fan is correct for a military chev 216 fitted to a 1942 C15.?
The fan for the radiator on my restoration is a 6 blade version and I thought this was a modification post war/farmer. I always thought that the blitz had a 4 blade fan but this seems to be correct only on long nose civillian type chev trucks. The radiator shroud on my vehicle has been cut to allow for the wider fan. Maybe the radiator is from another model chev as it is the only radiator fan shroud I have seen on a Chev blitz. Ideas or comments most welcome. 
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#2
23-10-10, 13:56
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The parts manuals claim that both 4 and 6 bladed fans were used on Chevs. They also indicate that other parts such as water pump assemblies are different depending on which fan is fitted. I don't have information to make it clear if this was a running change, a difference depending on planned theatre of use, depended on weight class or body type to be fitted or completely random.
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#3
27-10-10, 16:07
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Six bladed I believe
Hi Wayne & Grant
All three of my CMPs have the six bladed fan, `41 C60L, `42 C60S, and `45 HUP. So I suspect that the intent was to use the six bladed on the CMPs, this seems to be born out in all the manuals I have. The modified conventional Chevys may have had the 4 bladed and I believe this is mentioned in the service bulletins. As has been mentioned before it is very important when mixing and matching the pulleys and fan belt width to be sure to maintain the relative match of the crank and water pump/fan pulley. Wrong pairing and you can really over speed the fan. With several results, lot more noise, lose of power as the fan tries to pull the truck down the road working as a prop. But more important catastrophic failure of the fan. When running one engine on the test stand I discovered that in replacing the water pump with a new pump it had the wrong size pulley, much smaller. Started the engine just to check things and at 2000 rpm the fan was howling and blowing so hard it was sucking oil out of the engine breather and spraying it my face. Needless to say shut the engine down removed the water pump pressed of the pulley and replaced it with the correct size. Cheers Phil
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Phil Waterman `41 C60L Pattern 12 `42 C60S Radio Pattern 13 `45 HUP http://canadianmilitarypattern.com/ New e-mail Philip@canadianmilitarypattern.com
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#4
28-10-10, 11:10
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Radiator Fan
Hi Wayne - our 1942, 216, Chevrolet Blitz (half-track) has an original six blade fan.
Bob
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Chevrolet Blitz Half-Track Replica - Finished and Running Ford F15 - unrestored Ford F15A X 2 - unrestored Website owner - salesmanbob.com
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#5
28-10-10, 12:08
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I had 216 x 2, one 4 blade, one 6 blade. Went for the 6 blade as I thought it might be more effective in the summer.
Rich.
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C60S Austin Champ x 2 Humber 1 Ton & Trailer
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#6
29-10-10, 02:58
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My cab 11 C8
Came with a 4 blader ... As far as I can work out, it's original to May 1940 production
Mike
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1940 cab 11 C8 1940 Morris-Commercial PU 1941 Morris-Commercial CS8 1940 Chev. 15cwt GS Van ( Aust.) 1942-45 Jeep salad
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#7
29-10-10, 03:50
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The listing for fans from the C60S-03 parts manual is attached. The different fans ended up having different pulleys (all 3, in matched sizes) and water pumps.
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#8
29-10-10, 03:54
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The 1940 to 1941 parts list shows a 4 blade fan as does the HUP parts manual. The MB-C1 maintenance manual says 6 blades.
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1940 Cab 11 C8 Wireless with 1A2 box & 11 set 1940 Cab 11 C8 cab and chassis 1940 Cab 11 C15 with 2A1 & Motley mount & Lewis gun 1940 Cab 11 F15A w/ Chev rear ends 1941 Cab 12 F15A 1942-44 Cab 13 F15A x 5 1942 cab 13 F15A with 2B1 box 1943 cab 13 F15A with 2H1 box 1943 Cab 13 C8A HUP 1944 Cab 13 C15A with 2C1 box 1943 Cletrac M2 High Speed Tractor MkII Bren gun carrier chassis x 2
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Linear Mode
