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In the Bosch IF/IR alternator world, most regulators are of the A-circuit type, meaning they are regulating on the negative side of the rotor coil. Is there any disadvantage to changing to a B-circuit type regulator designed for the same alternator family?

Aside from not being the most optimal choice in many or most VW diesel applications, certain VW Long Life 2 oils continue to look like reasonable PAO-based "high ZDDP" ACEA A5 options for gasoline engines. Is there anybody having negative first hand experiences in terms of increased oil...

While some OEMs are moving “back” to silicate or phosphate containing coolants, some OEMs never moved away from incorporating inorganic inhibitors into their specifications or preferred coolants. Overall, it seems that the advantages of inorganic inhibitors outweighs their disadvantages as long...

Some of these Bosch "1-wire" IF alternators with "multi function regulators" (MFR) have got a dedicated tach or "W" connector sticking out from the rectifier plate. Most however do not. I am wondering if there is a way of adding one without too much hacking and soldering. If you look at the...

Does anybody know how a Cummins 3.9 or 5.9 OEM oil cooler is being held together and what materials are involved? Are the plates and oil passages made of copper or brass, and are they brazed or merely just soldered together with something like 70/30 solder? I would like to know as I am...

Hi, Cummins and Fleetguard fail to release StrataPore versions of the FS1280 and FF5052 used on tons of B and C series engines, so I am going to "pick" some alternatives for a 95 HP 4BT, based on the data I have been collecting. The FS19617 is "my" 10 Micron StrataPore replacement for the...

The Fleetguard LF3487 used to be more or less identical to the Donaldson P169071. Apparently, Fleetguard decided they wanted it to look like a Baldwin filter featuring a fluted shell and a thinner filter media, rather than Microglass. The first time I noticed the change was in late 2013. Is...

Has anybody experience fitting and measuring Fleetrunner or other Gates v-belts? I am going to buy one in the US, as they don't sell them here. Gates U.S. says the 9400HD is the right one for the application, while their European catalog says 6566EXL, which is what I am currently using and it...

Hi, just wondering if anyone has experience upgrading (or downgrading) a vehicle to flexible radiator hoses such as Gates Vulco-Flex. It has been suggested to me that they will transmit less engine vibration to the radiator. I find this hard to believe because of the steel spring inside and...

Hi, fourth radiator fix on a 17,000 hour tractor because of cracks and vibration, rather than corrosion and I want something different. A specialized radiator shop not too far away offered me to customize and recore this copper/steel radiator with a new all in house made core. The...

I am posting some low quality pics of what UPS brought me the other day. A Mahle/Behr TX93-83D thermostat with a ball type bleed valve. I intend to use it as an upgrade for an old German 3 cyl. IH tractor. The OEM thermostat has a 3 mm bleed hole, making it run too cold (common with German IHs)...

They say the G-range sold by Zerex in the States is the same as the Glysantin-range known in Europe. If I compare some of the common ASTM test results, I have to...well, question this. How about you? Glysantin G05 Zerex G05 Glysantin G30 ( in German, sorry) Zerex G30 (via hidemya**, don't...

Calcium sulfonate greases are loved because of their inherent EP and AW properties owed to the calcite particles. In lube oils, Ca levels are much lower and little of it seems to be in form of crystalline CaCO3. If calcite leaves everything else in the dust, how come it is not used a lot more...

Happy Easter BITOGs, I'm facing a recurring issue with the drive shaft bushings in a tractor mfwd axle, an ordinary steerable drive axle with outboard planetary hub reductions by Carraro. The old design used steel bushings with some kind of copper based babbitting. The newer ones are lined...

The I&T shop manual wants me to apply "Lubriplate" to the injector shoulder before reassembly. I understand Lubriplate is a brand name, but what kind of lubricant are they referring to in this case? - A heavy duty grease, with or without solid lubricants?? - A paste containing, copper...

In case of our tractors MFD drive axle, we need two 27 x 71 mm or 1.063 x 2.795'' u-joints on each side. The genuine ones got 32 needles of 2 mm or 0.079" O.D. in each cap. Now I have been looking at some greasable options by "GKN", which are not too bad. They are slightly different, having 26...

Most Bosch VE-pump equipped Cummins B-series engines require a pop pressure of 245 bar (or 3600 PSI ??). The A&I shop manual of the particular Case IH tractor says 245 - 253 bar, while the Bosch injector catalog states 245 - 259 bar for this application. That said, our tractor came with Lucas...

Sorry, it's me again. Our Cummins 4BT 3.9 (VE pump) started doing this a few months ago, but stopped doing it temporarily. We cannot go beyond 1500 - 1600 rpm without getting misfiring and exhaust "popping". By popping I mean "pressure waves" of some kind. When it does this, there is NO visible...

Finally we received the new gears for our Carraro planetary final drive (we had a locking pin failure). As expected, they are different from the genuine ones. Now the question is whether they are about the same quality or lesser/cheaper. Things I have noticed: 1. They got burrs at the edges...

Yet another repair needed on the Case IH 5120. We cannot go beyond approx. 1800 rpm without getting misfire. It only happens randomly. The engine never smokes black and I'm hoping it is a supply problem. A fuel filter change did not help. Next is a supply pump replacement, we're still waiting...