Supercharger Teflon coating

[AlleyCat]

I put a ported snout on my original supercharger which has about 53k miles on it. I noticed some of the Teflon coating was missing. How large of an issue is that? Can it be re applied?

 

[HRJ]

Eek!

 

[coolblue]

I put a ported snout on my original supercharger which has about 53k miles on it. I noticed some of the Teflon coating was missing. How large of an issue is that? Can it be re applied?

Reach out to @16GoManGoHC2, he just redid his himself. DK the product he used.

 

[16GoManGoHC2]

That’s more than the Teflon worn off the rotors, your blower is either knocked out of time or you have bearing issues. The timing on the rotors is not fixed, it’s held in place just like the harmonic balancer is on the crankshaft, clamp load from a left hand thread bolt, now I see why IHI wants a clutch pulley on it. See the shaft to the left of the larger gear, it’s smooth, timing is held in place by a washer!!

 

[coolblue]

No splines or drift pin? Too much for them? More good news about potential blower problems. Lol.

 

[HRJ]

No splines or drift pin? Too much for them? More good news about potential blower problems. Lol.

Probably to minimize overall damage if a component fails.

 

[Magnified]

I put a ported snout on my original supercharger which has about 53k miles on it. I noticed some of the Teflon coating was missing. How large of an issue is that? Can it be re applied?

That's some kind of rubbing.

 

[16GoManGoHC2]

Yea, the rotors are touching, from the pattern looks to me it’s timing. Stock pulley? Looks trashed, to fix that the rotors have to come out, total tear down. If it where mine is look for a low miles replacement and junk it. The housing is probably good yet for someone like John Bond

 

[Hickster]

That is James's brother.

 

[16GoManGoHC2]

I put a ported snout on my original supercharger which has about 53k miles on it. I noticed some of the Teflon coating was missing. How large of an issue is that? Can it be re applied?

Question, rotors look like this before you put the snout on or look like this after running a new snout for a while?

What kind of pulley are you running?

 

[Magnified]

Is that just coating or can you feel missing metal ?

 

[Lord Hellcat]

I would say that the bearings have gone bad on that Supercharger. You need a new one

 

[AlleyCat]

This is the first time the ported snout has been put on. So not the ported snouts fault. Metco. The supercharger runs fine. Eventually I will buy a ported one from jokerz. I am going to stick with the 2.4. car is extremely fast with around 1k to the rear and more than that with the torque.

 

[16GoManGoHC2]

Yea, kind of figured a solid pulley. it’s not worth rebuilding so just run it until you get a replacement but be careful as if it has a catastrophic failure which breaks the housing the big ol intake valves are literally only 2” away, just one little piece down one and it’s game over.

 

[Speedy!]

2.50 pulley = overspinning. The rotors could be flexing.

 

[FFBOS]

Yea, kind of figured a solid pulley. it’s not worth rebuilding so just run it until you get a replacement but be careful as if it has a catastrophic failure which breaks the housing the big ol intake valves are literally only 2” away, just one little piece down one and it’s game over.

Those pieces have to make it through that tight intercooler first. A bunch have gone to the moon, have yet to see motor issues from it.

 

[16GoManGoHC2]

Those pieces have to make it through that tight intercooler first. A bunch have gone to the moon, have yet to see motor issues from it.

If the case breaks any pieces get sucked right down into a valve, and big pieces can make it down one of these holes right underneath it. The blower case is pretty thin and easily cracked and broken. It’s happened before.

 

[coolblue]

If the case breaks any pieces get sucked right down into a valve, and big pieces can make it down one of these holes right underneath it. The blower case is pretty thin and easily cracked and broken. It’s happened before.
View attachment 15798 View attachment 15799

I remember that view when I first pulled the manifold off my 6.1 to put the blower on. No looking down the long intake port to get a glimpse of the valve. It's right there, clear shot into the cylinder. I was like....cool. LOL

 

[16GoManGoHC2]

Not cool if they suck up something at full song if the blower above it cracked it’s case and the suction from 8 ports below it, 4 on each side sucked in even a little chunk. There’s not much to the case. Think of a 5 lbs 3 lobe heavy ass rotor spinning 24,000 rpms intermeshing into a thin webbed 5 bladed rotor and they eat each other. You think this thin case is going to contain it? It’s my concern with rebuilding this blower on my own, no instructions no guidance, and winding it up to 20,000 rpms on top of my engine.

 

[16GoManGoHC2]

The case may look 1/2” thick but in all this honey combing its only 1/4” thick if that