clutch dowel pins

tarmon8r · 02-23-2005, 05:59 PM

I just got my flywheel back from the machine shop. Had it resurfaced and neutral balanced. However, I noticed when I took it to them that one of the dowel pins for the clutch was broken. Mentioned it to the machinist, he didnt have one to replace. So now I need a dowel pin. I have two on the flywheel. Any ideas on where to get one? Ford dealer I suppose. Anyone have a part number or recommendations.

Jeff Chambers · 02-23-2005, 06:22 PM

Yep, go to the dealer and get new set. They're only a few bucks. Do not put on the clutch without all three.

Dark_5.0 · 02-23-2005, 07:26 PM

Some after market flywheels dont even have dowel pins so why are the stock ones so important? My billet flywheel doesnt have them or a place for them so I just bought high grade bolts and used some locktite.

mustangII460 · 02-23-2005, 07:40 PM

Dowel pins center the pressure plate to the flywheel. Without them you will pick up a vibration.

Ford dealer 3 bucks.

* Put in freezer overnight then install* If its not wanting to go in.

tarmon8r · 02-23-2005, 10:13 PM

I also just realized that centerforce dual friction clutch doesnt come with pilot bearing or "clutch alignement" tool. What a bunch of crock. Any suggestions on getting one, the alignment tool? I can get a pilot bearing.

mustangII460 · 02-23-2005, 10:56 PM

Auto Zone for tool. They are cheapo plastic and only a few bucks. Usually hanging on a rack/help isle/etc.

Jeff Chambers · 02-24-2005, 06:50 AM

Quote:

Originally Posted by Dark_5.0

Some after market flywheels dont even have dowel pins so why are the stock ones so important? My billet flywheel doesnt have them or a place for them so I just bought high grade bolts and used some locktite.

Are you absolutely positive on that? Are you sure that the flywheel maker didn't want you to transfer the hole locations and re-locate the dowels? I've never seen a flywheel without dowels. The clearance hole on a 1/4" hole is .040" over-sized. If you take into maximum material conditions and locational tolerances, this means that your clutch could be more than 0.062" off center! Take that 13-lb pressure plate at 5000RPM through a .062" orbit and let me know how much that disturbs your engine balance. Not to mention that the dowels transmit the shear force which is how the clutch transmits the engine power.

I've been wrong once or twice before, but I'd bet $1.50 that there's provisions for dowels and the vendor instructions told you to use them.

~The Jester~ · 02-24-2005, 08:03 AM

You guys got me to thinking, so I just checked my billet SFI flywheel. Bigger-an-life there's dowels in it. I can't imagine a flywheel manufacturer NOT putting them in. Better double check that puppy!

andy669 · 02-24-2005, 08:51 AM

All of the stock-type replacement stuff that I have seen has had dowels. I have a couple completely different prototype units that dont use dowels, however they are designed to be used with a shoulder'd bolt. If someone is running a stock type setup without dowels, they are just plain lucky.

Andy

Dark_5.0 · 02-24-2005, 01:29 PM

Quote:

Originally Posted by andy669

All of the stock-type replacement stuff that I have seen has had dowels. I have a couple completely different prototype units that dont use dowels, however they are designed to be used with a shoulder'd bolt. If someone is running a stock type setup without dowels, they are just plain lucky.

Andy

I would rather be lucky than good any day.

I did use bolts that had a fat taper just below the head so they kind of self centerd the clutch.

USMC302 · 02-24-2005, 03:06 PM

Quote:

Originally Posted by tarmon8r

I also just realized that centerforce dual friction clutch doesnt come with pilot bearing or "clutch alignement" tool. What a bunch of crock. Any suggestions on getting one, the alignment tool? I can get a pilot bearing.

Did you order the clutch and the disc? mine came with a tool. unfortunately the disc came as the 26 spline or whatever it is for the Tremec's, but they took it back for a swap for free.

USMC302 · 02-24-2005, 03:08 PM

Quote:

Originally Posted by Dark_5.0

Some after market flywheels dont even have dowel pins so why are the stock ones so important? My billet flywheel doesnt have them or a place for them so I just bought high grade bolts and used some locktite.

RAM Flywheels have them. or mine did at least.

02-23-2005, 05:59 PM	#1
tarmon8r Registered Member Join Date: Jun 2002 Location: manassas, va Posts: 186	clutch dowel pins I just got my flywheel back from the machine shop. Had it resurfaced and neutral balanced. However, I noticed when I took it to them that one of the dowel pins for the clutch was broken. Mentioned it to the machinist, he didnt have one to replace. So now I need a dowel pin. I have two on the flywheel. Any ideas on where to get one? Ford dealer I suppose. Anyone have a part number or recommendations. __________________ 1983 mustang, 393 cubic inch stroker small block, victor jr heads and intake, gold race 1.6 roller rockers. comp cam 304, 244@ .050. .576" hydralic retro roller cam,lunati rods. block was o-ringed,10:1 forged pistons, speed pro fit fit rings, clevite bearings,msd distributor and igniton,be cool huge radiator, black lite electric fan, march underdrive pulleys, mildon deep sump oil pan, mac 1 3.4" long tube headers, 3" dr gas x-pipe and mac exhaust,ARP bolts. car weighs 2900 lbs w/out driver, sub frames, weld wheels, mickey thompson sportsman pro 26 x 10.5 x 15's,#8 fuel line steel braided

02-23-2005, 06:22 PM	#2
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: clutch dowel pins Yep, go to the dealer and get new set. They're only a few bucks. Do not put on the clutch without all three. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

02-23-2005, 07:26 PM	#3
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: clutch dowel pins Some after market flywheels dont even have dowel pins so why are the stock ones so important? My billet flywheel doesnt have them or a place for them so I just bought high grade bolts and used some locktite. __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

02-23-2005, 07:40 PM	#4
mustangII460 Factoy Five Roadster Join Date: May 2000 Location: Sevier Co,Tennessee Posts: 1,681	Re: clutch dowel pins Dowel pins center the pressure plate to the flywheel. Without them you will pick up a vibration. Ford dealer 3 bucks. * Put in freezer overnight then install* If its not wanting to go in. __________________ Frank

02-23-2005, 10:13 PM	#5
tarmon8r Registered Member Join Date: Jun 2002 Location: manassas, va Posts: 186	Re: clutch dowel pins I also just realized that centerforce dual friction clutch doesnt come with pilot bearing or "clutch alignement" tool. What a bunch of crock. Any suggestions on getting one, the alignment tool? I can get a pilot bearing. __________________ 1983 mustang, 393 cubic inch stroker small block, victor jr heads and intake, gold race 1.6 roller rockers. comp cam 304, 244@ .050. .576" hydralic retro roller cam,lunati rods. block was o-ringed,10:1 forged pistons, speed pro fit fit rings, clevite bearings,msd distributor and igniton,be cool huge radiator, black lite electric fan, march underdrive pulleys, mildon deep sump oil pan, mac 1 3.4" long tube headers, 3" dr gas x-pipe and mac exhaust,ARP bolts. car weighs 2900 lbs w/out driver, sub frames, weld wheels, mickey thompson sportsman pro 26 x 10.5 x 15's,#8 fuel line steel braided

02-23-2005, 10:56 PM	#6
mustangII460 Factoy Five Roadster Join Date: May 2000 Location: Sevier Co,Tennessee Posts: 1,681	Re: clutch dowel pins Auto Zone for tool. They are cheapo plastic and only a few bucks. Usually hanging on a rack/help isle/etc. __________________ Frank

02-24-2005, 08:03 AM	#8
~The Jester~ Rat Killer Join Date: Aug 2002 Location: Cold ass Ohio Posts: 1,143	Re: clutch dowel pins You guys got me to thinking, so I just checked my billet SFI flywheel. Bigger-an-life there's dowels in it. I can't imagine a flywheel manufacturer NOT putting them in. Better double check that puppy! __________________ d-Con Racing "Nothing fancy, just 347 inches of RAT POISON!" MICE need not apply.....

02-24-2005, 08:51 AM	#9
andy669 Registered Member Join Date: Jan 2001 Location: Moline Il Posts: 901	Re: clutch dowel pins All of the stock-type replacement stuff that I have seen has had dowels. I have a couple completely different prototype units that dont use dowels, however they are designed to be used with a shoulder'd bolt. If someone is running a stock type setup without dowels, they are just plain lucky. Andy __________________ 88 coupe 91 LX NMRA Pure Street 5120

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