BobR
Well-Known Member
my bellhousing has 2 cracks that run from bolt pattern to bolt pattern along the corners. what causes this kind of breakage? HP/torque
its bolted to a ford 2.8 and a WC T5
Bob
its bolted to a ford 2.8 and a WC T5
Bob
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Help Support Hardline Crawlers :
cracked bell?? GR
- Thread starter BobR
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BobR
Well-Known Member
it cracked in use.
Bob
Bob
BobR
Well-Known Member
going together it was a little bad, Ive had worse. ran fine for a about 2000then tranny made a frnny chirping noise under load. I changed smoked fluid. ran fine till.
60 miles later the fluid was smoked again and chirp was back.
Bob
60 miles later the fluid was smoked again and chirp was back.
Bob
GaryTJ
Well-Known Member
bellhousing is not a problem, you can replace it when you change your smoked transmission.
Totalled
That Ford Guy
Sounds like the input shaft wasin't inline with the crank and it side loaded... probably ate some bearing in the trans...:booo:
BobR
Well-Known Member
I agree about what was causing noise and only drove a few noisy miles.Totalled said:
I think I probably got on this before something more serious. the input shaft still feels tight.
I want to know what causes this crack pattern so I can do whats necessary to stop it from happening again.
Bob
Totalled
That Ford Guy
Clutch/Transmission Installation Tips For 1986 and Newer V-8 Mustangs
A.:
The flywheel to crankshaft bolts must be hand-torqued to 75-85 ft./lbs. (302/351W) and 54-64 ft./lbs. (4.6L) The 10.5" pressure plate bolts must be torqued to 12-24 ft./lbs. and 11" pressure plate bolts to 33 ft./lbs. + 1/4 turn.
Be sure to use the alignment dowels in the flywheels. Pressure plate bolts and alignment dowels for the 10.5" clutch can be purchased using PN M-6397-A302. Pressure plate bolts N808969-S100 and alignment dowels D1FZ-6397-B are for the 11" pressure plate.
Evenly tighten bolts in a circular direction one turn at a time. Bellhousing alignment is crucial for proper clutch and transmission function.
Due to production tolerances of engine blocks and bellhousings, it is possible for the transmission centerline and crankshaft centerline to be misaligned. Misalignment can cause transmission gear wear, transmission jumping out of gear, driveline vibration, clutch pedal vibration, pilot bearing noise, release bearing noise or excessive clutch spin time. It may also damage the pilot bearing, transmission mainshaft bearing and clutch hub. It will also cause harsh shifting.
Before installing the bellhousing, check the block mounting surface and bellhousing surfaces for nicks, dents, paint debris, etc. These are some things that could affect the accuracy of your measurements.
Q.: How do I check bellhousing alignment?
A.: The first step is to check bellhousing face runout. You are checking for parallelism of the back of the bellhousing to the back of the block. Install the dial indicator (as shown fig.1). Rotate the crankshaft and mark down the reading. Be sure to push the crankshaft against the thrust bearing for an accurate reading. Maximum runout is .010.
The next step is checking bellhousing bore runout. You are checking to see if the bellhousing bore centerline is aligned with crankshaft centerline. Reposition the dial indicator in the bellhousing bore (as shown fig. 2). Rotate the crankshaft and mark down the readings. Maximum out of concentricity is .015. If the bore runout is out of spec. install appropriate offset dowels.
Offset alignment dowels can be purchased from Lakewood.
.007 PN 15950
.014 PN 15960
.021 PN 15970
http://www.google.com/search?client...en&q=dial+in+a+bellhousing&btnG=Google+Search
junkyard jim
Well-Known Member
missing alignment dowels? I used to see a lot of that with forign cars and Mopars. (dowel sleeve would back out then the elephant motors would start tweaking the bolts till they came loose and the flywheel would go sialing away when the clutch was dumped)
junkyard jim
Well-Known Member
missing alignment dowels? I used to see a lot of that with forign cars and Mopars. (dowel sleeve would back out then the elephant motors would start tweaking the bolts till they came loose and the flywheel would go sailing away when the clutch was dumped or converter locked)
