I am hoping someone on here can help me finish my build. I have put a 1993 Mustang T-5 tranmission behind my 1949 8RT Flathead. I used the Wilcap adapter plate, new clutch disk, pressure plate, throwout bearing and adapter sleeve for the throwout bearing. Everything is lined up, and working except I cannot get the clutch to work completely. When I push on the clutch, hydraulic master cylinder to hydraulic slave cylinder to modified stock clutch linkage and forks, all moves like it should but I cannot get the throw I need. I have tried two slave cylinders in case the first didn't have a long enough throw. The second one is a Coleman, with a 1 3/8" throw, which I think should be more than enough. This is the first ever build for my son and I, and we are stuck. The car is done except for this issue....Please help.....Thanks in advance.
The MC is a cheap one, my ignorance as a beginner builder, and I have thought that might be the issue too....wasn't sure if that made sense or not Sent from my SM-G930V using The H.A.M.B. mobile app
Unless for some reason your pedal is bottoming out on something before it gets the full stroke on the master cylinder I'd think that may well be the issue.
Is it a hydraulic throw out bearing g? If so you may need to use the shims to get it in the proper travel range Sent from my XT1585 using The H.A.M.B. mobile app
I am using a stock Flathead throwout bearing, stock 10" pressure plate and 10" clutch disk. All brand new...I have approx. 1" of play before the slave cyl. starts to move, and then it moves through the whole pedal push till it bottoms out... Sent from my SM-G930V using The H.A.M.B. mobile app
What is the clearance between the throw out bearing and pressure plate fingers when fully released? This is normally around .100". I know there is no inspection cover with that '49-'51 stamped bell housing, but checking the clutch release lever movement with the slave disconnected should give you a good indication of actual t/o bearing to finger movement. If this clearance is too great, the slave or master will run out of travel.
Because I am using the early truck "hogshead" bell housing, I actually do have the inspection plate....I can see everything moving and engaging just not far enough. There is minimal clearance between TOB and fingers...I have it as close as I can without touching.... Sent from my SM-G930V using The H.A.M.B. mobile app
I'm using a Wilwood 3/4" master and Speedway 7/8" slave on my Ford and it works well, nice and easy pedal pressure. And an AFCO stock car hose. It bled easily first shot. How is the pedal pressure? I initially had the master too low on the clutch pedal arm and it took 4 of us to push the clutch pedal. I didn't have the travel either. So I moved the pivot up to the stock rod hole and over a little for convenience. Things got better all of a sudden. Big thing, look for any flex in the system. This eats up your travel. I had an aluminum plate on my firewall, it was too thin and too small, that had flex. I made up a bigger one out of a piece of 1/4" tool steel I had around the shop. It locates the brake master too.
Make sure when you save money on master cylinders, brake and steering products that you have your insurance paid up and a number for a good rollback in your phone. Your slave has recommendations for the bore to use on the M/C, if it doesn't contact the manufacturer and find out what they recommend. I run the same adapter, same trans, 498BA, wildwood clutch M/C and have no issues. You will figure it out. Great suggestion by Boss396 above.
First...thank you for all the suggestions and areas to check. I am going to try a few things tomorrow, minimize any slop.in the linkage going into the bellhousing and relocating the pivot point of the pedal so that I can decrease the slop in the pedal. Hopefully that fixes my issues and I can get the throw I need...if not, then upgrading MC to 7/8" Sent from my SM-G930V using The H.A.M.B. mobile app
It's alive! After we lowered the clutch MC and the attachment point in the bottom of the pedal, we increased the throw of the MC by over an inch which gave me the throw I needed on the slave cylinder. I tried uploading a video of the maiden voyage but can't seem to get it to load. Thanks again for everyone's help! Sent from my SM-G930V using The H.A.M.B. mobile app
Do you have a pedal stop? I made one up so the clutch master rod only goes so far into the master and doesn't bottom out.
No...hadn't thought of that, but know I am thinking about that too...thanks Sent from my SM-G930V using The H.A.M.B. mobile app
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