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I think there's been some dark interpretation of my earlier remark . Like other's , I read these posts with thehope of finding information that may be of use to me . "At the end of the day you could use the cheapest oilor even used chip fat and the gear box would still work " . Easy enough to understand and enjoy the levity ofthe remark . "And with some they would just adapt to any inadequacy as human nature can do " . This is whatbrought about the remark of his just playing around with us . For the life of me I don't understand what thatmeans in relation to the beginning of the sentence ! Hope this clears up my response to his post , Peter
GL5 also does not play nicely with yellow metals, which is commonly used to make syncros, not an issue with Guzzis.If you are finding some sludge or similar after using Redline, it's not the oil. It's probably some containment or water/condensation. Redline is quality stuff and it's capability far exceeds what a Guzzi 5 speed will throw at it.
Wasn't there some issue with synthetic oils and incompatibility with composite bearing cages in 5 speed gearboxes? Ciao
GL5 also does not play nicely with yellow metals, which is commonly used to make syncros, not an issue with Guzzis.Yes you can have a oil that meets GL4 and GL5 specs. If you are finding some sludge or similar after using Redline, it's not the oil.Penrite.... avoid. 99% of the stuff they put on the container is marketing BS and they hold virtually no approvals. They also dell many different products that are exactly the same, just in a different bottle to try and convince people they have the perfect thing for every application under the sun.
SKF tells you not to use POLY caged bearings with synthetic lube in high temperature applications. If I recall, they did not get too specific on what a 'high temperature' is.I have seen a lot of those dang plastic caged bearings fail in the older Guzzi 5 speeds. I can't say for sure there is or is not a connection. But if you have the transmission out, replace them.
Yes, this is what I recall reading when I looked into it some years ago. The operational temperature has a role but it all did seem a bit grey. There was a well regarded Guzzi transmission guy in the US about 6-10 years ago but I can't remember his or his businesses name and I couldn't find his website that had a lot of good info. I think he sold out or shut down.Ciao
Charlie Cole? He was the 5 speed Guzzi Gbx "Go To" guy, I can't recall either the sources I came across but there was more than one, Pete Roper also railed against the synthetic caged bearings and at one time supplied the 14 ball all metal type.The all metal replacements are still available but can be hard to sourceLooking at the 2 different types it's very clear that the change instigated by Guzzi came from the accountants and not the engineersJohn
A matter of the molly addition to-, or molly-containing lubricant causing the "plastic" cages to perish. Apparently not a myth.
Yes there are myths about that, that's all they are, myths. That's not to say those bearings don't fail, it just has nothing to do with synthetic oil.