dscottdatsun Posted April 13, 2015 Report Share Posted April 13, 2015 I read the FSM on what type of oil to put into the steering gear box. I says to use "MP 90". Does this stand for Multi-Purpose? Should I use a GL-4 or GL-5? Quote Link to comment
mhub91 Posted April 13, 2015 Report Share Posted April 13, 2015 90W for a diff should be sufficient, but please don't quote me. Quote Link to comment
mhub91 Posted April 13, 2015 Report Share Posted April 13, 2015 90W for a diff should be sufficient, but please don't quote me. 2 Quote Link to comment
ggzilla Posted April 13, 2015 Report Share Posted April 13, 2015 90W for a diff should be sufficient, but please don't quote me.Read your Datsun owners manual Here's what mine says: Producing: * API GL-4 * MIL-L-2105 * Chevron Multiservice Gear Lub. 75,80,90,140 * Esso Gear Oil GP 80,90,140 * Mobil Mobilube EP or GX 80-90,90,140 * Shell Spirax 75EP,80EP,90EP,140EP * Sunoco Multipurpose Gear Lub. GL-4 80,90,140 * Texaco Universal Gear Lub. EP 80,90,140 2 Quote Link to comment
datzenmike Posted April 13, 2015 Report Share Posted April 13, 2015 Probably some brass in the steering box, says GL-4 for the 620. 1 Quote Link to comment
henry Posted June 5, 2015 Report Share Posted June 5, 2015 Hi, Is it possible to simply drain the oil out of the steering box? That is without removing the box out of the vehicle? I would like to replace all of the fluid. 1971 510 SW Thanks, Henry Quote Link to comment
datzenmike Posted June 5, 2015 Report Share Posted June 5, 2015 It would have to be sucked out with a plunger. The oil does not go bad and I don't think there is a change interval for the steering box. Quote Link to comment
uberkevin Posted June 5, 2015 Report Share Posted June 5, 2015 Can one get a new seal for the steering box? Mine is leaking.. a bit...more then I'd like. I don't wanna thread jack but how do you know when your low? *edit, I guess I didn't see this was for a 510 either. I just read 521.. ha! Soo yeah 521. Hell it's probably the same box. Quote Link to comment
datzenmike Posted June 5, 2015 Report Share Posted June 5, 2015 521 and 510 boxes are nothing like each other although similar in operation. Take the fill plug out and look in. If you can add oil then it was down. Yes you can replace the seal. I have done this a couple of times on various vehicles but not in the vehicle. I suppose it can be done if you have room and the pitman arm off. Above the pitman spline there will likely be some sort of C clip supporting a washer and a seal above that. I guess screws could be driven up into the seal and used to pull it down and out around the sector shaft. Note that the oil will now fall out! A new (greased) seal could be carefully driven back up into place perhaps with a suitable diameter pipe and the washer and C clip replaced. The seal kit usually has new ones in it. 48137-36700 is the Nissan part number and if they no longer have it, can be used to cross reference from another source. Don't forget to grease the new seal so it isn't dry and is less likely to tear on installation. They're cheap so get a couple just in case. Quote Link to comment
DISLEXICDIME Posted June 7, 2015 Report Share Posted June 7, 2015 510's steering box fluid was to thin from the factory you need moly lube Quote Link to comment
datzenmike Posted June 7, 2015 Report Share Posted June 7, 2015 90 W EP oil is too thin? Good enough for 78 HP L16 4 speed but not for Armstrong steering? Maybe owners just need to check and top it up more often. Quote Link to comment
DISLEXICDIME Posted June 8, 2015 Report Share Posted June 8, 2015 For the second time the stock lube is to thin Quote Link to comment
datzenmike Posted June 8, 2015 Report Share Posted June 8, 2015 Ohhhhh kay. An opinion, by definition, cannot be wrong. Quote Link to comment
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