Valve train greaser

[mike90045]

Can't get the cap loose on the greaser, on a Metro .  Were dummy greasers (like blank COV plugs) ever made?   Do I need to try harder, and assume the curry inside has dried up and turned to glue.  I have a rubber strap wrench that should encourage it, but I don't want to warp the valve train.

Nothing obvious like left hand threads on them?   I should be turning CCW to loosen it, correct ?   I'm thinking of using CV joint grease, comes in a nice tube, easy to handle, high quality.

Mike

[Crofter]

I am not sure if the Metro is any different set up than a few other brands I have seen. I am assuming it is a thin walled cup with internal threads and is screwed over the male threads on the end of the rocker shaft.

It is probably bottomed out and the female threads may not be cut all the way to the end or the male threads relieved in that area. If you grip down externally you tend to clam the thin wall cup tighter onto the threads and that doesnt help. If you are not worried about scarring the cap, a pair of curved jaw vice grips on the rim only of the cap should fetch it off. I doubt you will twist the rocker shaft.

Heat would do the trick too except the thrust spring could be softened, so you would need to disassemble the unit and get everything else off but the cup before you started heating.

Some people have cobbled up a coupling of sorts and put a grease fitting there instead of messing with repacking and fiddling with the miniscule amount of grease that cup will deliver.

[lowspeedlife]

Agreed with Crofter, it's a thin sheet metal stamped cap, use your rubber strap wrench first that should not bugger it up. I'd expect if anything is in there it's most likely metal shavings.
adding a "zerk" fitting on the end of the cap does make it easy to refill the grease cup, instead of removing & packing it then screwing it back on,  back it off when empty, fill using grease gun, then turn the cap weekly or monthly to grease the shafts.

Scott R.

[JohnF]

Standard thread, not too difficult to remove.  Generally I have found that he caps work themselves off due to engine vibration.  Personally, I take mine off and throw them as far as I can.  After that, just use some heavy oil (80-140) wt every day - that works well.

[Ronmar]

I think you will find it is a seprate assembly that screws into the end of the rocker shaft.  The grease cup screws on over the top of the greaser assy.  I think mine has a wrench hex right up against where it meets the end of the shaft.  It is the same thread as the bolt screwed into the opposite end of the rocker shaft. 

I would suggest some heat applied to the cup.  This will expand the cup and soften the contents, which may make it a little easier to remove... 

I don't use my grease cup, though it is still installed. I use 90wt gear oil squirted into the tops of the rockers.  I visit the engine at a minimum hourly when running, so a few drops there and on the injector pump shaft and the lifters is SOP...   

[rbodell]

Agreed with Crofter, it's a thin sheet metal stamped cap, use your rubber strap wrench first that should not bugger it up. I'd expect if anything is in there it's most likely metal shavings.
adding a "zerk" fitting on the end of the cap does make it easy to refill the grease cup, instead of removing & packing it then screwing it back on,  back it off when empty, fill using grease gun, then turn the cap weekly or monthly to grease the shafts.

Scott R.

I did away with the grease cups all together and replaced them with zirk fittings. They were the same thread.

[mbryner]

as others have said, forget the grease cup.  too much of a pain.   I just fill my oiler can with chain saw oil and squirt it on the rockers/shaft and valve guides.   it's thick, easy to find, cheap.

[vdubnut62]

John Deere Chain and Cable lube. A thickish tacky high quality aerosol lube with graphite, $5 a can, really good stuff that hangs in there.
I use it on everything that moves & doesn't have a grease fitting.
Ron

[rbodell]

Ya know what, I bet if you could rig up a drip oiler like these http://shop.ebay.com/i.html?LH_BIN=1&LH_IncludeSIF=1&_trkparms=65%253A12%257C66%253A2%257C39%253A1%257C72%253A2718&_nkw=drip+oiler&_sticky=1&_trksid=p3286.c0.m14&_sop=15&_sc=1 would be cool