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My best estimate is that when an engine went back for 3rd/4th Echelon repair the parts were removed, and new supply parts were installed. The old oil filter would be cleaned/repaired/tested and fitted with the all black, non-ac-decaled oil filter. This would also explain why engines were no longer 'wet olive' (aka the original GMC factory paint) but simply OD. The rebuild process of cleaning/inspecting would remove the old paint, or the process simply mandated repainting. What color would the Army have oodles of? OD.

There is so much that can affect the 'color' of a paint than the chemistry. How much you thin it, what do you thin it with, spray pattern, primer etc etc. Run with what you are happy with... everyone claims to have 'accurate' OD paint. Can they all be right? :nut:

I have made a somewhat important discovery regarding the decal on the oil pan (the oil filter is in another thread). Most of the info is here: http://www.tm9-801.com/forums/viewtopic.php?f=22&t=503 But the major points are: It was only on the 'deep sump' oil pan. The decal even has a GM part number GM-2190260 Decalcomania - oil pan removal instructions. The TB even gives the location: Two decals, one on each side of the UPPER oil pan. The verbiage: "CAUTION - remove lower oil pan and disconnect pump intake before removing screws from the upper oil pan" SWEET. If anyone has the color/text layout (a photo would be just super!.... even a blurry one would help as we have the text, just need the format) please post or email me at deadline@tm9-801.com

Please read this: http://www.tm9-801.com/forums/viewtopic.php?f=22&t=488 While some CCKW owners may use A Universal Truck and the other CCKW picture books as references, they are poor references simply because they detail the CCKW AFTER US Army Service. They may have the odd TM photo, but I own all of those books and the picture quality it horrible. The 'early' oil body decal is not in the TM10s that I could find. It seems that the early CCKW contracts released a new TM for just about every order. Between 41-42 there are at least 6 TMs (Parts Books and Maintenance) and none of them show the decals. Only the TUP Assembly manual had the decal. The 'late' decal appears in the April 43 TM9 and was quite easy to read once the camera had the proper amount of light. I had maintained that the oil filter color was white, and had heard that it was gray, but when I pressed the people saying Gray they could not support their theory. When I came across an article about Chevy civvy oil filters is when the connection between the S-2 and S-6 civvy oil filters beginning life as the Military Senior and Junior filters was made, and the S-2/S-6 filters were gray. This is still a rather unsupported theory because most of the original Gray oil filters shown to me did not have the factory decals. If anyone has a factory gray Military Senior oil filter with decals, please post a pic!! To date I have spoken with two people who say they have NOS oil filters, but that they are still in the wrap and they will not open them. Thant brings me to my last observation. NOS oil filter NOT supplied on the original GMC engine were black, and not decaled. I have seen many, many NOS oil breathers that had no decals. And many NOS Military Senior oil filters that are black, and had no decals (at least not the AC decal, the lid decal is still unknown). My best guess is that since there 'supply' oi filters could be ordered as a generic replacement for *ANY* engine using the now standardized (since about 1942) Military Senior oil filter that the manufacturer did NOT put the AC decal on them for two reasons. First, in mid 1942 the Army mandated that all manufacturer logos be removed from Army parts (the Jeep lost the script tailgate, teh CCKW lost the GMC brush guard logo, etc) and second the filter was a universal replacement that could go on a Tank engine made by Ford, a Hercules engine, a GMC engine etc so it made little sense to put the AC logo on them. That is what I can gather regarding the oil filters. Since I am seeking answers and not just opinions (and I regard this as research, not as casual conversation) simply taking someones word at it is not good enough. In my mind until there is proof of a Gray, AC decaled Military Senior oil filter coming out of the NOS wrapper they didn't. It not that I am calling anyone a liar, but I want to be able to say with CERTAINTY that it happened that way.

Really shows how fragile a tank can be. Who was that chick at the beginning? Thank for posting!

Gray seems to be the right choice for the CCKW and Gray was also the color of some Chevy engines. The NOS oil filters that I have seen are civvy ones (even had the round AC civvy version decal). Now is Chevy Gray the same as Ford Gray? I've talked to one guy who said the 'New Ford Gray' out now is close. Thats what I painted my GPW engine with and I think thats a good choice. I have several feelers out and one lead (from a gentleman on this board) to possibly get pics of the oil decal. The lid decal is what I am looking from. The post on tm9-801 shows enough to get a good replica made... but I have no reference for the lid at all. I even have a lead at the Patton Museum on Kentucky to look under the hood of Pattons 'original' ST-5 CCKW shop van conversion.. looking for decals.:nut::nut: One thing that my research has brought up is the color/decals on 'NOS' Military Senior Oil filters. From what I can determine, spares from supply are black. The only Military Senior oil filters that were Gray were direct from the factory. So when people say they have a NOS Senior oil filter can, is it black or gray? The black filter body's don't appear to have decals. That kind of makes sense as the AC logo would only be applied on a factory engine, a supplier of bare oil filter bodies would not have the license to label them AC as they have no idea where the body will end up.. on a Herculies or Ford engine? Ditto for the oil filter breather. From the factory on a CCKW they had a specific AC decal. But the supplier of spares would not be able to label them as they have no idea if they are going on a GM engine. And pics of NOS (right out of the wrapper) do not have decals... so that seems to follow the 'Generic, un-decal-ed NOS supply part' theory.

Thanks for answering my questions. I hope I get my jeep up to that level.

What is "hessien covered" if I might ask? The headlight harness looks like it has the standard electrical tape wrapping, not braided cotton. I all assume that you put on a second service stop light instead of a BO stop light for driving on streets? That seems to be a popular modification. Other than the stencil font and what appears to be gloss paint (or did it rain? There is significant reflection of the registration numbers on the top of the fender... a flat paint would not have this effect. Other than those items it looks good. Much better than what shows up a events I've seen recently. One 'jeep' even had a tailgate (it was a CJ painted up).

Very nice... only things I can mention are is the harness is not cloth covered and the BO driving light harness. Beat my jeep hands down.

For reference you may want to get a free copy of TM10-1513 (May 15, 1942) its on the jeepdraw web site. The red stripe is not a GPW part. Ford marked all their parts (with very few exemptions). I agree that a motor mechanic is going to use whatever the supply Sgt gave him, and you may have seen it in pictures, but the Jeepdraw guide is pretty much cast in stone for all but some minor issues. As for the braided steel oil lines, I believe that is also an error. The TM10 calls for rubber. Plus, if the oil line WAS braided steel, there would be no need for the rubber grommet on the oil filter bracket. The grommet was to protect the rubber hose from wearing on the metal. I understand you are not going for 'factory class'... so this is just informational.

To get to that bolt you need a socket (deep), a universal joint, and a 3in + extension. Its quite easy to get to after you do it once. Whats with the braided oil lines? The rubber ones work fine and don't stick out as much visually. Also, the red striped water hoses were a MB thing. Proper repos are available for Fords. The G503 wiki is a bit out of date and vastly incomplete. GO here: http://jeepdraw.com/PART_COLOURS.htm Great reference for GPW/MBs.

The turbo is not a significant HP producing device. Its actually there for emissions. The kit that the turbo comes in is actually called a 'clean air kit'. Basically yes, the turbo can go on a non-turbo diesel, and the C and D models are interchangeable but do require separate parts due to the different sizes of the turbo inlet/outlets. And yes, I learned all this stuff on SteelSoldiers.com

SNL Standard Nomenclature List aka parts manuals.

I hope I have your luck. I previewed my A2.. brakes to the floor, dead batteries. Hopefully easy fixes. Annville is 20 miles from my house... wish I could have gotten one from there but Mechanicsburg is only 70 miles away. Good luck and see you on SteelSoldiers.com.

Have you won a GL auction before? I have an M35a2 at Mechanicsburg awaiting EUC approval and have a car full of parts/tools to PMCS the thing before I leave the base. Best of luck, are you a Member of SteelSoldiers.com?

Evidently there are TWO separate decals used on the oil filter body ( I am calling them early and late ). I have pics of them here: http://www.tm9-801.com/forums/viewtopic.php?f=22&t=488 Also I deciphered the text on the 'late' decal. Still looking for a pic or an actual oil filter with the label on it. Nothing in the TMs are legible.

Here is a side by size (somewhat difficult to read) comparison from a June, 1943 Popular Mechanics AC Delco oil filter ad. Note the civvy filter in the lower left has the simple AC logo. The decal on the military filters is clearly a different size, and contains references to part numbers used to service the filter unit.

I did find what one supplier is calling: 1929-1962 Chevy engine Gray but it looks very dark... like Ford Gray dark. I painted my GPW engine with Plasticote high temp engine enamel Gray.. I want to say the number was like 514 or 506.. I still have a can. I may just go with that. They also list a GMC Six cylinder Olive for 39-48. Yep, GMC olive. http://www.tm9-801.com/forums/viewtopic.php?f=22&t=477

They had the FRAM decals. Those are surprisingly easy to find... all the dealers have them. As posted above the Military Senior filters were designed specifically for the Military. The majority of Civvy cars didn't have oil filters and you never filtered the oil, you simply changed it. It would be nice to get a complete decal sheet together, and I have located 3 of the six decals (still need the oil pan decal, and the two oil filter ones). Ross Prince in AU has the oil breather, and the two rocker cover decals. I am not sure if the oil bath air filter had a decal. My guess is yes (going by the all the other air filters on MVs) but both of the ail filters I have (cast iron and die cast) have none. I spent all morning at the Army Heritage Research Center in Carlisle looking up Quartermaster Company T/O&E info (found a few nuggets of info, nothing related specifically to the CCKW) but will get some TM scans up as soon as I can.

Nope.. already checked. They have the AC logo, but its not even close to the Military Senior filter decals. I'm heading to Carlisle to the Army Heritage Museum for some research.. when I get back I'll post scans from the 43 TM9-801 that show the body decal, and the only semi legible part of the text I can find for the top. If you want, you can read about my oil filter research here: http://www.tm9-801.com/forums/viewtopic.php?f=22&t=478 Note that the Military Senior filter is the precursor to the AC S-2 filter, as the Military Junior (as used on g503 and similar vehicles ) is the precursor to the AC S-6 filter. None of the military decals made it to the civilian models... in fact, oil filters were OPTIONAL ACCESSORIES (dealer installed, no less) for 46-50-ish GM civilian cars! I learned a ton researching these filters.. and have just three remaining questions: What does the oil filter cover decal say. What colors are the decals. What color GRAY was used on the factory filters.

They have the FRAM decals, or the 50's AC decals for passenger cars. The AC oil breather decal (it was easy enough to find) is not what I am looking for.... my search is for the lid and body decal for the oil filters. I can make out the oil filter body decal.. the TMs show it.. but there is only one picture of the lid decal, its in the 43 TM9-801 in the ignition section (go figure). Its almost like there are no factory oil filters left on CCKWs.. I've looked at hundreds of CCKW pictures (and dozens in person) and none seem to have the original oil filter... they are either painted over, or supply stock (plain black, no decals). Its like the Delco 4H battery... there are post war '4H' batteries, but they are not the same as the wartime production ones.

I am looking for the AC filter decals (or even just clear pics of them, the TMs only clearly show the body decal, the lid decal is not legible). If you have a pic of the decals, or know someone who is repo'ing them, please post or PM.

OPs chains are going to be 99% for ice/hard packed snow... I wouldn't want them on my MVs unless I was off road or worse.

Take off the back plate, the impeller, the pulley. Push the shaft out front to rear. Use heat as required. Pumps are still available new/rebuilt, generally with a core.

Its all in the TM, and more detailed in the SNL. The only real open cab difference is as mentioned, the later rotary switch vs the early push/pull.