Merc 814 heavy clutch

[Milo814]

Hello good people

I'm the proud owner of a '95 6 pot 814. She's a brilliant beast, but I have a recurring problem with a very heavy clutch - I once broke the pin on the pedal with a very heavy boat on the back, and I don't want to repeat that saga.. Getting into 2nd is now getting tricky, and I'm wondering if its the ball joint at the intersection of the clutch rod (please excuse my ameuteur terminology) and arm into the gear box - see attached.

Could anyone say if this is the problem or is it a symptom of under greases thrust bearing? I haven't Checked this lately.. Partly because I can't recall it's exact location or how to remove and re-grease.

Any suggestions welcome and greatly appreciated - also recommendations if the community feels I'm asking in the wrong forum, where to look for answers.

All the best,

Milo814

 

[Milo814]

 

[Milo814]

 

[389 Hood]

Looks like it hasn't seen any lube in it's 26 year life. That U-joint may have flat needles in it from being dry.

Now, I'll ask a question. What is a '6 pot 814'? Is that a way of saying an 814 CID 6 cylinder?

 

[Milo814]

Fair points 389./

It's a straight-6 mercedes 814, 6.4 litre.

So - lube u-joint and the cup joint.
I'm obviously already on the back foot here, so I'll throw pride to the wind and ask for a pointer as to wear the thrust bearing is located? A handy online reference I found implies that it can be unscrewed and packed with grease..

My probably rather obvious deduction is that I need a new thrust/throw-out bearing - this would explain the stiffness?

Thanks for any further light on the matter!)

 

[Hammer166]

Fair points 389./

It's a straight-6 mercedes 814, 6.4 litre.

So - lube u-joint and the cup joint.
I'm obviously already on the back foot here, so I'll throw pride to the wind and ask for a pointer as to wear the thrust bearing is located? A handy online reference I found implies that it can be unscrewed and packed with grease..

My probably rather obvious deduction is that I need a new thrust/throw-out bearing - this would explain the stiffness?

Thanks for any further light on the matter!)

Stiff clutch is more likely the cross shaft needing lube. There's a grease zerk on each side of the bell housing. The throw out bearing usually can be greased in place. Some trucks require removal of the inspection plate at the bottom of the bellhousing to reach the zerk, others have extensions.