I have a new bottle of Ford Friction Modifier that I was told is very good at getting old friction clutches in Ford truck transmission's to have new life I used it and it worked for my slipping 1989 F150 automatic. It is made for Ford rear ends and I wonder if anyone has tried such a product to accomplish getting the CT90 clutch to not slip or any other additive that does that same job. Thanks for any input.
CT 90 Clutch Friction Modifier lubricant from Ford
- Thread starter CTandMe
- Start date
red69
Well-Known Member
I can't say this with any certainty, but what I think the friction modifier will do is decrease friction. This is the exact opposite of what you want to do with your clutch discs. Adding this to your oil will do the same thing as using current day automobile oils with friction modifiers in your engine. You want to use an oil made for motorcycle wet clutch 4-stroke engines. If you don't, your friction discs will be destroyed. Do you currently have automotive oil in your engine? That may be the source of your problem. If that's the case, you will need to replace the clutch discs and change the oil to the type I mentioned above.
OLD CT
Well-Known Member
You don't want to use that stuff unless you have a Ford limited slip or posi rear.
It is used to eliminate ''clutch chatter'' or sticking clutch fiber discs in the posi unit. It swims in a clutch pack and a ring and pinion gear only. I add one bottle to a few quarts of 75/140 weight gear oil when I do a fluid service on the Mustang. I don't think it will work the way you want it to. It's not good for the engine related parts either. Piston rings, cylinder bore, oil pump. In other words, I don't want to trust it circulating around in my engine. Just a thought.
It is used to eliminate ''clutch chatter'' or sticking clutch fiber discs in the posi unit. It swims in a clutch pack and a ring and pinion gear only. I add one bottle to a few quarts of 75/140 weight gear oil when I do a fluid service on the Mustang. I don't think it will work the way you want it to. It's not good for the engine related parts either. Piston rings, cylinder bore, oil pump. In other words, I don't want to trust it circulating around in my engine. Just a thought.
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I'm using Valvoline Motorcycle 4 - Stroke Oil 10w-40 it says it has Excellent Wet Clutch Protection. I was just hoping for a easy fix for the clutch slipping during kick starting.
I guess at some point maybe sooner rather than later I will be doing a clutch disk rebuild. I'm surprised that there are no lubricants for this situation like maybe Lucas or so forth that could be tried. I realize that nothing will beat a new set of disk but I'm just getting opinions.
b52bombardier1
Well-Known Member
The idea is to use a proper "JASO MA" rated oil for wet clutch engines. No need for anything else.
Rick
Rick
I understand that, the point of the question is to see if anyone has experience with additives that might help once the clutch plates start to slip. It's not that I don't realize what the proper lubricant should be with good clutch plates.
cjpayne
Well-Known Member
That's the exact stuff I use in my CT70's. Its the best I've found so far. It has a very high zinc content. Great for the shift forks and cam too. 20w50 for hot weather, constant high rpm, or breaking in a new motor. I use the 10w40 for most of the year. I'm in NE Oklahoma.