Bolts holding flywheel onto crank

[65fastbackresto]

Question, should I use blue rtv sealant on the threads or the copper stuff, I`ve got both.

 

[rbohm]

neither, permatex #2 works better than either of those.

 

[Soaring1]

Drop by a Ford dealership and go to the parts department. Tell them you want the red sealer that goes on flywheel bolts. That is the correct sealer to use. I replaced my flywheel bolts with new factory ones, and they came with the red "sealer" already applied... and it was already fairly hard. It will do a good job of preventing oil seapage that will get onto the clutch plate.

 

[jikelly]

Dang, You're supposed to put threadlock on those?

Crap, wait, yeah, but I used the blue kind.

 

[Soaring1]

No, it's not a thread lock product, it is a sealant. Thread lock will only leak. Thread lock meaning products such a loctite (lock-tight)

 

[D.Hearne]

Only the 80's-up 5.0's used thread sealer on the crank bolts. The 28 oz crank's bolt holes are blind and don't extend thru the reear flange. I use teflon pipe thread sealer, no problems.

 

[65fastbackresto]

Hey Danny what up?

Hows trucking?

The bolt holes appear to have a void area around them inside the hole about 3/4 of an inch. Obviously I cant tell what the void is, and you know me, I really dont have any idea, but what am I seeing in there?

 

[BlownFiveLiter]

I'd just pick up some Permatex blue or red and use it. I'm using blue on my head studs and no leaks to report, so it'll seal flywheel bolts just fine.

 

[65fastbackresto]

I just used blue

and torqued em to 100 ft lbs. Man it is freaking humid here, 90 degrees and I am soaked to the bone after bout 2 hours out there. But...1 step closer.

 

[D.Hearne]

Hows trucking?

The bolt holes appear to have a void area around them inside the hole about 3/4 of an inch. Obviously I cant tell what the void is, and you know me, I really dont have any idea, but what am I seeing in there?

I did a round to Denver and back this week. Weather was great and a nice change from the humidity down here. Just a Bummer I couldn't stay longer. Left here Sunday night, delivered in Denver Tuesday am, reloaded 12 miles away in downtown, then down to Sherman Tx. Wednesday at noon. Reloaded again south of Dallas last night and delivered that 30 miles from the house this morning. if your motor is a 28 oz balance, the flywheel bolt holes are blind. No sealer needed. The 5.0 blocks(85-up) also need sealer on the lower head bolt holes.

 

[65fastbackresto]

I went ahead and put the sealer on them

It being on there aint gonna hurt nothing anyway, and the lubrication of the sealer helped me torque them anyway seems like.