Marvel Mystery Oil

[VaughanCustoms]

I have used this in My 1967 Cougar before to clean things out some in the gas and some in the oil. Has anyone ever used it in there FJ? I pick the bike up on Saturday and its running and running pretty well but has been sitting a couple months then he would start it and run it then sit a couple months kind of thing. He moved out of state for a job so I was thinking this product worked well in my Cougar so why not use it in the bike? Any thoughts?

[movenon]

What problems are you trying to fix running the oil ?

I run no additives in the oil. I use 15-40 diesel rated oil (15 dollars a gallon) and a spin on filter.  I do add a bit of StarTron to the fuel because of the alcohol laced fuel.

Back to the oil, we run wet clutches, any additive you put in there will soak into the clutches. Not saying it will hurt, just saying it will get into the disks.
George

[ribbert]

What problems are you trying to fix running the oil ?

I run no additives in the oil. I use 15-40 diesel rated oil (15 dollars a gallon) and a spin on filter.  I do add a bit of StarTron to the fuel because of the alcohol laced fuel.

Back to the oil, we run wet clutches, any additive you put in there will soak into the clutches. Not saying it will hurt, just saying it will get into the disks.
George

In the absence of any abuse, this is what makes the clutch slip. It will happen over time anyway, but I believe additives or certain oils speed up the process. That's why in most cases, a slipping clutch will still have the fibre plates at or near original thickness, no wear.

Noel

[VaughanCustoms]

Oh yeah, ok cool just checking. The product is like a cleaner like seafoam. I forgot the trans and motor share oil. This is why I ask questions. I was just looking at using it to clean up maybe some of the buildup that may have occured from sitting. If you can't run cleaners through the motor is there any other way to clean up like carbon buildup or sludge or anything other than tearing the motor down?

[movenon]

Oh yeah, ok cool just checking. The product is like a cleaner like seafoam. I forgot the trans and motor share oil. This is why I ask questions. I was just looking at using it to clean up maybe some of the buildup that may have occured from sitting. If you can't run cleaners through the motor is there any other way to clean up like carbon buildup or sludge or anything other than tearing the motor down?

Just change oil often for a while if it is of concern. I can tell you that if you spend 10.00 and get a gasket for the clutch cover on the right side. You then can remove the cover while on the side stand (all the oil pools to the left side) and look /see / inspect for any "sludge" etc... You will probably find it is pretty clean but there is value in knowing not assuming.
I just pulled mine and did a minor mod and inspected the clutches. Now I know the condition of my clutch pack.

As far a the top end. Being that it is a "new to you" bike, first I would check the valve clearances so you know what they are. And I would run a good grade of fuel, Chevron would be one. And run a bit of StarTron in it with every tank full. Call it good.

I would spend time and money on getting her back into stock spec's to start with. New fuel filter, check the chain condition and slack, sprockets, check the valves, sync and adjust the carbs, check all the fitting, inspect the cables, look for any "weird" wiring done by PO's, clean the battery cables and grounds,   stuff like that..

George

[RichBaker]

She probably needs a new valve cover gskt and bolt grommets. Get those, pull the cover, check your valve clearances and at the same time, you can see if there's any sludge....   Probably isn't but you will be able get a visual.

[fj1289]

X2 what Rich said.  Also, BE CAREFUL WITH THOSE VALVE COVER BOLTS!  They screw into the aluminum camshaft saddles -- really dont want to strip one of those!  Oh, and pick up a clutch slave seal kit too! 

Good luck and enjoy the kookaloo!