Loc-tite on flywheel bolts?

JChalfan

Member

Nov 27, 2002

551

0

16

Bellevue, WA

Feb 11, 2009

#1

• Feb 11, 2009

• #1

I have heard some people say you should put loc-tite on flywheel bolts, and others say it's unnecessary.

I just put teflon sealer on mine, and torqued them to 80lbs.

Sound ok? I just want to be confident before I drop my engine back in.

Thanks,

Jeff

 

93 LX

Founding Member

Jun 2, 2000

3,081

3

0

Norwalk, CA.

Feb 11, 2009

#2

• Feb 11, 2009

• #2

Well the factory does so why wouldnt you? If I remember correctly mine was yellow lok tite...

 

Wallzy

New Member

Aug 20, 2006

128

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0

Orlando, FL

Feb 11, 2009

#3

• Feb 11, 2009

• #3

loc-tite =

 

LiquidGT

Member

Oct 8, 2007

368

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16

Near STL hell

Feb 11, 2009

#4

• Feb 11, 2009

• #4

A friend recommended that I use loc tite on mine; he said he learned the hard way.

Teflon sealer is going to be useless on flywheel bolts.

 

Beasty306GT

Active Member

Dec 19, 2002

671

4

28

Oxford,Mass

Feb 11, 2009

#5

• Feb 11, 2009

• #5

yes use loc-tite

 

Maryland Stang

Active Member

Aug 21, 2002

1,656

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Greenville, NC

Feb 11, 2009

#6

• Feb 11, 2009

• #6

Why Teflon sealer? I used Loctite Blue.

 

Black1987Stang

Active Member

Aug 22, 2004

1,422

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37

Jersey Shore

Feb 12, 2009

#7

• Feb 12, 2009

• #7

I just put together an 04 mach 1 with a new flywheel, clutch, etc. The fidanza flywheel came with green slip fit sealant or whatever its called....made to put around the pilot before it goes in. I accidently put some on a few flywheel bolts, thinking it was loctite then I realized it wasnt...Put it on no more than 3 of the bolts, the rest I put on blue loctite then tightened it with my snap on 3/8 electric impact till they stop turning....since I couldnt find my torque wrench anyway. I know it ain't going nowhere and they're all roughly the same torque, even though it might be a little tighter than it should I'm not scared of anything coming loose or breaking because a few has the wrong compound on it.

 

white 89 GT

Member

Apr 3, 2003

281

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17

Tacoma

Feb 12, 2009

#8

• Feb 12, 2009

• #8

Its good to use a medium strength loc tite, for two reasons, one to assure the bolts stay put and also to seal the threads.
Those bolt holes on the crank go all the way through to the oil side.

 

Rick 91GT

Mustang Master

Nov 29, 1999

9,692

95

99

PA

Feb 12, 2009

#9

• Feb 12, 2009

• #9

white 89 GT said:

Its good to use a medium strength loc tite, for two reasons, one to assure the bolts stay put and also to seal the threads.
Those bolt holes on the crank go all the way through to the oil side.

Click to expand...

Tq the flywheel bolts and the Pressure plate bolts, it is very important!

 

V

v8only

Active Member

Jul 3, 2003

2,378

22

49

Feb 12, 2009

#10

• Feb 12, 2009

• #10

the bolts aren't coming loose...they've got 85-90 foot pounds on them.

the lock tight is there to seal the bolts in snug against oil leaking past them from the pan.

 

Maryland Stang

Active Member

Aug 21, 2002

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Greenville, NC

Feb 12, 2009

#11

• Feb 12, 2009

• #11

I thought those holes were blind.

 

V

v8only

Active Member

Jul 3, 2003

2,378

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Feb 12, 2009

#12

• Feb 12, 2009

• #12

no, they go all the way through to the oil pan. You'll seep oil out of the bolts if you don't seal them up.

 

BlownFiveLiter

have car, will race....wait, it doesn't run

15 Year Member

Nov 29, 1999

3,133

18

108

Chicagoland

Feb 12, 2009

#13

• Feb 12, 2009

• #13

I've never sealed my flywheel bolts and have never seeped oil out of them. Maybe I'm just lucky?

 

V

v8only

Active Member

Jul 3, 2003

2,378

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49

Feb 12, 2009

#14

• Feb 12, 2009

• #14

you're not the only one, it's something that def can happen..I wouldn't take apart something for that reason, but it's something I never skip while I'm in there either.

 

Rick 91GT

Mustang Master

Nov 29, 1999

9,692

95

99

PA

Feb 13, 2009

#15

• Feb 13, 2009

• #15

Maryland Stang said:

I thought those holes were blind.

Click to expand...

Your stock and most of the aftermarket 302 style cranks are through holes, there are some aftermarket 351W cranks that are blind.