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09-13-2017, 05:11 PM | #1 |
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French flathead ,Stabliser rods
We have a bad clutch judder on a open drive shaft with 9" and two springs in the rear ,its set up like a mustang .I am thinking this needs stabiliser rods .Any one experienced this ,Thanks Ted
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09-13-2017, 05:38 PM | #2 |
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Location: new britain,ct 06052
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Re: French flathead ,Stabliser rods
What are the engine and tranny mounts used??
Paul in CT |
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09-13-2017, 06:18 PM | #3 |
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Location: San Antonio, Texas
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Re: French flathead ,Stabliser rods
The old torque tube would put a pretty good push on the drive train that could cause the clutch linkage to move out of whack under certain conditions. With dual springs & open drive, the only load would be torque related. Unless the motor & trans mounts are badly worn, there should be little or no clutch equalizer movement under load. Maybe the pressure plate needs some finger adjustment or something of that nature. Either that or there is some unequal wear on the parts there. I don't think radius rods will help much with open drive.
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09-13-2017, 06:24 PM | #4 |
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Location: Wichita KS
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Re: French flathead ,Stabliser rods
Don't see how "stabilizer rods" would be of any benefit, there should not be any forward thrust with the open driveshaft. Believe you need to look elsewhere.
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09-13-2017, 06:35 PM | #5 |
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Re: French flathead ,Stabliser rods
Thanks so far .it has stock front mounts all new and a GM type one under the gear box ,T 5 ,I was thinking stabiliser rods (bell housing to chassis )not radius rods ,French moter doesn't have the holes drilled for them ,Ted
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09-13-2017, 06:39 PM | #6 |
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Re: French flathead ,Stabliser rods
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09-13-2017, 07:41 PM | #7 |
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Re: French flathead ,Stabliser rods
Yes I tend to agree ,but there is movement there some were ,it has a Diaphragm clutch so could be something out of line Ted
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09-13-2017, 11:42 PM | #8 |
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Location: Wichita KS
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Re: French flathead ,Stabliser rods
If the engine is loose on the motor mounts then force on the clutch linkage could move the whole assembly and maybe the rods would help. I would stiffen up the mounts to stop any movement myself, but try the rods and see if it helps. Should be fairly easy to test.
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09-14-2017, 12:07 AM | #9 |
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Location: Williamsburg, VA
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Re: French flathead ,Stabliser rods
How bad is the rear main leaking? Any chance you have picked up oil on the clutch disk? That will cause chatter.
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09-14-2017, 12:40 AM | #10 |
Senior Member
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Re: French flathead ,Stabliser rods
OK thanks for the suggestions. No oil leak ,All new clutch ,I am thinking badly machined bell housing adapter to T 5 .
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09-14-2017, 02:55 AM | #11 |
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Re: French flathead ,Stabliser rods
If my experience with open drives and stabilizers is anything to go by, even when a stabilizer to the head-firewall is present there can still be wiggle room for the shudder you describe.
A cable from somewhere on the gearbox running rearward to a crossmember helped a lot. You might find a similar solution.
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09-14-2017, 12:07 PM | #12 |
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Re: French flathead ,Stabliser rods
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09-14-2017, 02:48 PM | #13 | |
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Re: French flathead ,Stabliser rods
Like this Ben ,one for the model As ,Thanks all ,Ted
Quote:
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09-15-2017, 04:36 AM | #14 |
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Join Date: Aug 2014
Location: North island Newzealand.
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Re: French flathead ,Stabliser rods
I have a 4 speed top loader style gearbox and I had really bad clutch chatter, it turnd out the rear gearbox mount was too soft and when I pressed the clutch peddle it would cause the whole engine and gearbox to move up at the rear, pulling up on the gearbox mount.
I used a flathead front engine mount top make a 2nd rear mount so I could crank the gearbox down hard, its %100 better. |
09-15-2017, 11:56 AM | #15 |
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Posts: 10
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Re: French flathead ,Stabliser rods
Whats the history on the French Flathead. Has it been rebuilt? A lot of the French engine cranks run oversized thrust faces on the rear main bearings normally +20 thou. If it's been rebuilt and fitted with standard rear main bearing thrust faces you will have massive end float which could cause clutch judder.
Cheers Jim www.royalkustoms.com |
09-15-2017, 02:57 PM | #16 |
Senior Member
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Re: French flathead ,Stabliser rods
OK Thanks again ,We will look into the end float ,Yes the rear mount I believe is soft ,I don't have the car in the shop yet ,Ted
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09-16-2017, 02:54 AM | #17 |
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Join Date: Aug 2014
Location: North island Newzealand.
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Re: French flathead ,Stabliser rods
I am in West Auckland if you want to have a look at my fix or need suggestions, I bet 100% its doing what my gearbox mount was doing.
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