i ran into a issue putting a T5 behind a flathead for a guy. he bought all his parts , not sure who but it came with instructions. its the flat plate to use with a stock ford hogs head off a 4 speed. ive done this in the past with both a offy 1 piece flathead to chevy bell and also made my own when i put a t5 behind a cadillac. no issues. this plate said to use the collar off any 3 speed ford flathead transmission and the stock bearing with the hogs head. the issue is, no free play in the throw out bearing. the pressure plate is not holding the trans out from the bell housing but in time with no free play and the clutch wears it will then start to slip. im pretty sure i can cure the issue by machining the collar down alittle this was suppose to be a "bolt together" kit but seems like a lot more little issues have come up. is this a one time issue with the parts i was given or has anyone else run into this?
Not all the t-5 front collars have the same back depth....... Posted using the Full Custom H.A.M.B. App!
Has nothing to do with the T5 collar. The flathead 3 speed collar fits over top of it. Using the stock flathead throw out bearing and the three speed collar which bolts to the flat plate. Done as the instructions stated. I wonder if the plate wasn't machined deep enough for the ford collar? I got it figured out how to cure the issue, just wonder if anyone else ran into this. Like I said in the past I never had this issue but was using different adapters
One of the modifications to a T-5 swap is the requirement of a larger diameter sleeve on the input shaft collar to match to the old style ford throw out collar. I have found that the easiest and simplest fix using the aluminum plate/hogs head conversion is to use an original Ford input shaft collar slid over the T-5 input shaft. This marries all OE Ford parts or a smooth operating clutch. There are three different length input retainer sleeves, one Model A and two V8's, the Model A sleeve can not be used as it is too long, if you have used one off a model A transmission it bumps the PP fingers and is the wrong part. The T-5 kit used with the hogs head requires the use of input bearing retainer sleeve from a 32-48 Ford V8 transmission with the benefit that it has a tab to fasten the clutch return spring and you don't have to make one up like other applications. Can you use the Model A retainer sleeve, yes but you have to reduce the overall length by cutting its length down.
its got the throw out bearing collar / front bearing retainer from a V8 and doesnt hit the pressure plate. the problem is the throw out bearing all the way back against the collar and no free play adjustment . the bearing is riding on the fingers of the pressure plate with the clutch released but not to the point its slipping - but in time it will .
Where did you get this adapter? The aluminum adapter plate should have a machined recess to accept the throw out sleeve or 2nd question what PP are you using.
the adapter was provided by the owner along with the open drive rear conversion .the ford truck 11" pressure plate that was on the motor to start with. clutch disc is an astro van 11" disc. the flywheel was cut to clear the rivits in the hub. this was all brought to me with the car to put in
Ok check the plate, the plate should have a recess that marries to the T-5, the plate should have a raised male ring opposite side that marries the adapter to the Hogs head. The old ford input sleeve fits down over the T-5 input and fits into the hogs head recess and bolts to the adapter plate. When correctly positioned the forks point to 12 noon and if you have a butterfly clutch shaft the leading edge of the shaft is at 11 oclock to 5 angle looking from Driver side.
the issue is the collar. the three speed collar could be machined down to gain more free play, but the original 4 speed collar cured the issue. the bolt circle is alittle smaller on the 3 speed. the quick fix was to file the bolt hole till they fit. i didnt have this issue in the past with the adapters i made because i used the 4 speed collar which keeps everything snug. i dont understand why the manufacture didnt make it to use the 4 speed collar when you have to rob the bell off the transmission to start with. lucky i had an extra 4 speed collar on the shelf to get this thing back together .....AGAIN. i could have saved myself alot of work if i noticed this to start with but it didnt hit enought to hold the bell off the back of the motor but i didnt find the issue till i tried to adjust the pedal. hope anyone planning on doing one of these with this type of adapter checks this issue before bolting it in this isnt an issue using the offy 1 piece bell adapter for flathead to chevy. the kit provides a cheesy sleave for the pilot and throw outbearing which i toss and machine a press fit sleave into the ford bearing and bore to match the T5. i will post pictures of the difference between the collar.
Ok Im with the program, I checked all the sleeves that I have and I usually have a bunch of 32-36 sleeves and use them. The sleeve you have in question is the later v8 sleeve 78-part # with the internal seal and yes the neck on the part is taller. Thanks for taking the time to post the pictures and the outcome. Form your post it appears that this adapter works best with the early sleeve or the 4 speed style sleeve. But I think the issue develops as your customer gave you a truck pressure plate 11" which I think is taller than the passenger car 10" unit by just about the distance you were off. I dont have an 11" PP unit to compare easily right now but if you have one you may see the height difference to a 9 or 10" PP is about the amount you were off.
The directions should be corrected - they state 32 to 48 front bearing retainer. I still don't understand why they don't make it to use the truck front bearing retainer because everything on the engine side would be stock ford with the exception of the clutch disc . Plus the 4 speed collar fits nice and tight. . A shorter pressure plate would gain clearance but your screwed if your dealing with a set up like I ran into. Plus the 4 speed collar is plenty long for any of the clutch disc I'll stick to making my own. For others buying one double check the throw out bearing before bolting the rest in place
To answer your question most t-5 conversions dont require an 11" pressure plate. That's a lotto of clutch for a light car. Most T-5 are used with 9" or 10" units that is why there is not the problem you encountered.
I still don't understand why its set up to use the 3 speed collar and not the truck. Looks sloppy with the 3 speed collar. There would be no issue with the 4 speed collar regaurdless of the clutch. My 331 caddy to T5 uses an 11" clutch also and the Y block to T5 is the same both are chevy T5 transmissions. The directions still need corrected for both the 2 different v8 3 speed collar and the issue if someone has 11" clutch.
The Jalopy Journal
