Re: Detroit 671 Clutch Update

Posted by John T on October 02, 2009 at 18:08:01 from (66.244.97.31):

In Reply to: Re: Detroit 671 Clutch Update posted by MARK ROBKE on October 02, 2009 at 17:47:47:

WHAT IF YOU ADJUST IT SO THERE IS NO FREE PLAY,EVEN IF IT SLIPS WHEN YOU LET OUT THE CLUTCH,WOULD IT GO SMOOTHLY INTO GEAR THEN?

Havent tried that, I wanted to but my 81 year old (stubborn lol) buddy wouldnt do it

DOES THE PEDAL TRAVEL COMPLETELY TO THE FLOOR?

YEP we did some adjusting and grinding and making clearance today so its almost pushing up thru the floorboard so as to maximize how far it gets pushed down STILL GRINDS

IS SOMETHING RESTRICTING PEDAL TRAVEL? IS THERE ANY ARM IN THE LINKAGE THAT COULD HAVE BEEN INADVERTANTLY REVERSED,CAUSING INSUFFICIENT LINKAGE TRAVEL AT THE THROW OUT BEARING?

No restrictions, even tho theres wear in pins or bushings etc we have alllllllll set up tight n slack free, instant pedal moves, throw out starts its rearward journey to fingers. WE EVEN WELDED A BUSHING IN THROW OUT ARM LOWER DOWN TOWARDS WHERE CROSS SHAFT ENTERS BELL HOUSING TO GIVE US MORE TRAVEL Still she grinds

WHEN YOU PUT IT IN GEAR NOW,WITH THE BRAKE RELEASED,DOES THE BUS TRY TO MOVE FORWARD(OR BACKWARD IF IN REVERSE)WITH THE PEDAL ALL THE WAY ON THE FLOOR?

NO if started in gear with pedal depresed bus dont move buttttttttt hey it weighs tons remember, then if put in Neutral and clutched again to engage tranny she grindssssssssssss

IF IT DOES GRIND THE CLUTCH IS DRAGGINsG(NOT RELEASING).IF YOU START IT UP IN NEUTRAL,WITH THE CLUTCH DEPRESSED,DOES IT THEN GO INTO GEAR SMOOTHLY OR DOES IT GRIND,OR LURCH FORWARD AS IT GOES INTO GEAR?

It grinds to put it in first, butttttttttt once in first (keeps clutch down of course) he can then go to other gears and no more grinding buttttttttttt thats probably because the grinding has stopped the tranny shaft from spinning, it acted as the brake

IF IT GRINDS THE CLUTCH IS DRAGGING.IF IT DOES NOT GRIND THOSE 2 CONDITIONS,THEN MAYBE THE TRANNY FLUID IS TOO LIGHT WEIGHT,OR NOT WAITING LONG ENOUGH TO PUT IT IN GEAR WITHOUT A CLUTCH BRAKE.

has no clutch brake, never had one

IF ALL THIS IS OK AND THE CLUTCH IS DRAGGING, I WOULD SET THE FINGERS LIKE THE REBUIDER HAD THEM AND LOOK HARD AT THE LINKAGE.

Gonna re set fingers paralell with disk tomorrow or Monday as you and two pop and anothe poster suggested

ALSO IS THE THROW OUT BEARING THE THE CORRECT LENGTH OR HEIGHT TO GET PROPER TRAVEL?

No idea, it is new and looks like old one but he had the same problem BEFORE remember. Regardles of its thickness we adjust the slack so tis close to fingers regardless so i DONT see thAT AS THE PROBLEM

HAS THE LINKAGE EVER BEEN MODIFIED,OR A PIVOT LINKAGE ARM REVERSED WHERE 1 SIDE IS FOR EXAMPLE 4 INCHES AND THE OTHER 5 INCHES? WHEN IT SHOULD BE OPPOSITE?

NOT TO MY KNOWLEDGE OR CLOSE OBSERVATION, IT ALL LOOKS RIGHT AND THE ONLY WAY IT CAN BE

Thanks,,,,,, John T

Replies:

• Re: Detroit 671 Clutch Update MARK ROBKE 08:51:07 10/04/09 (0)

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