New B Posted March 28, 2023 Share Posted March 28, 2023 New B posted a question in Mack Truck Q & A Just purchased a 90 Mack R 688 10 speed Fuller. Started to adjust the clutch looking for the 1/2 in spacing between the bearing and the clutch brake. I see 2 ring spacer , I believe this was a one piece clutch brake at one time that someone neglected to remove. Then installed a new 2- piece clutch brake. Any thoughts and opinions. See Pic below VERY NEW TO BIG TRUCKS Quote Link to comment Share on other sites More sharing options...
fjh Posted March 28, 2023 Share Posted March 28, 2023 4 hours ago, New B said: New B posted a question in Mack Truck Q & A Just purchased a 90 Mack R 688 10 speed Fuller. Started to adjust the clutch looking for the 1/2 in spacing between the bearing and the clutch brake. I see 2 ring spacer , I believe this was a one piece clutch brake at one time that someone neglected to remove. Then installed a new 2- piece clutch brake. Any thoughts and opinions. See Pic below VERY NEW TO BIG TRUCKS I agree with what yo see there you need to get that out of there to get the clutch set right! 2 Quote Link to comment Share on other sites More sharing options...
mechohaulic Posted March 29, 2023 Share Posted March 29, 2023 and maybe learn the one with the grease gun proper tech for greasing throw out bearing. why would some one have two on the shaft ??? Quote Link to comment Share on other sites More sharing options...
fjh Posted March 29, 2023 Share Posted March 29, 2023 12 hours ago, mechohaulic said: and maybe learn the one with the grease gun proper tech for greasing throw out bearing. why would some one have two on the shaft ??? Bro All the recent throw out bearings come with top and bottom nipples if that's what your talking about? That appears to be an easy pedal clutch its a bit hard to tell with out turning it a bit But its a pretty recent clutch! in my opinion he needs to rid the area of them two fiber plates! I am not a fan of them snap over brakes seen a few fall out or the tabs can break ! But that's me, I prefer the aluminum Eaton one ! That said You have to be real particular how you adjust the clutch brake with them real sensitive to how much pressure gets put on them! 1 1 Quote Link to comment Share on other sites More sharing options...
Joey Mack Posted March 29, 2023 Share Posted March 29, 2023 For what it's worth. I fully agree with FJH.. the snap together ones fail exactly as stated.. Quote Link to comment Share on other sites More sharing options...
Freightrain Posted March 29, 2023 Share Posted March 29, 2023 16 hours ago, fjh said: I agree with what yo see there you need to get that out of there to get the clutch set right! If 2 are good....4 has to be GREAT!! Lol. 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment Share on other sites More sharing options...
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