Bypassing the Super charger?

[2007LucerneCXL]

Unless someone knows or has done this SC removal it's somewhat of closed subject. Now to the best of my knowledge a electric water for this series 3.8L isn't available only for newer series, but routing the belt for only AC......

 

[HotZ28]

At times there is a lot of loud noises coming out of the SC. Other times more quiet. Had the SC belt off today and yes that belt cannot be removed because it spins the water pump too! The SC pulley on the snout turns to the right not freely but snuggly and there is a slight click as you turn it. It does seem to be working. Just the noises at times have me wondering? Will leave it for now.

I don't understand why you are so reluctant to replace the snout coupler on the S/C?? If "there is a slight click as you turn it" you have a worn coupler! I have replaced many of them through the years on both M62 & M90's, not that complicated. This thread is going nowhere, until you do the basic S/C maintenance & coupler!

 

[BuickGirlFromMars]

Could it be that you hate your supercharger because it's belted incorrectly? If it were I don't know how it hasn't failed yet so it's not likely but just throwing it out there given you seem adamant that there is only one belt when that should be impossible.

I put the belts on myself, what do you mean belted incorrectly?!






just random bad belts I found online lol

Correct my PA SC has the belt over the SC and most importantly the water pump. I will just leave it for now as it is...old car but still running

You could get zzp electric water pump and have an overkill cooling system in a car that can barely make heat LOL

BUT IT WOULD ALLOW AYOUR BELT QUESTION A

Caps lock rip

 

[BuickGirlFromMars]

Unless someone knows or has done this SC removal it's somewhat of closed subject. Now to the best of my knowledge a electric water for this series 3.8L isn't available only for newer series, but routing the belt for only AC......

The only difference in water pump from pre series 1 to series 2 l67 is the, height and inner diameter of the pulley from base ,not by much. It’s the thickness of the flange the pulley mounts to.

 

[HotZ28]

We seem to be drifting from S/C (noise) from elimating the S/C belts,, now to the difference in water pumps This thread is getting off subject & going nowhere!

 

[2007LucerneCXL]

LOL it drifted on the first post as bypassing the SC on this vehicle can't be done without affecting the rest of the components.

It's fix the SC noise or live with it.

 

[LARRY70GS]

Boost bypass explained,

Eaton M62 coupler install,

 

[Buickguy123]

I don't understand why you are so reluctant to replace the snout coupler on the S/C?? If "there is a slight click as you turn it" you have a worn coupler! I have replaced many of them through the years on both M62 & M90's, not that complicated. This thread is going nowhere, until you do the basic S/C maintenance & coupler!

Thanks! The coupler was changed before and I did not do it. I think you have to take the alternator and other assorted stuff off that is in the way? The bums who just changed the gaskets were asked to change the SC oil and inspect that as well. One said he special ordered the SC oil however it was not on my invoice from them nor was a charge for new intake gaskets. I think the bums might have used that form your own gasket sealant. Yes, there is slight click as I turn the snout pulley to the right. Thanks!

 

[BuickGirlFromMars]

Thanks! The coupler was changed before and I did not do it. I think you have to take the alternator and other assorted stuff off that is in the way? The bums who just changed the gaskets were asked to change the SC oil and inspect that as well. One said he special ordered the SC oil however it was not on my invoice from them nor was a charge for new intake gaskets. I think the bums might have used that form your own gasket sealant. Yes, there is slight click as I turn the snout pulley to the right. Thanks!

so as we have ever so determined, that click isnt right. there should be drag/resistance moving the pulley ,but a click means there is some exessive clearance somewhere and if its right at the snout that tells me its probably the coupler

 

[rstairs]

My contention is you are mistaken. I have never seen a supercharged 3800 that uses the same belt to run the supercharger and the A/C compressor. One belt drives the supercharger and nothing else. The other belt independently drives everything else.

View attachment 29898

I have a question and I'm hoping you can help me. I have an 04 park ave ultra with the 3800 with supercharger, recently the supercharger started making noise and over the last couple months it has gotten louder. The guy that work on my car said that the noise was coming from the snout of my supercharger and I bought the kit for him to basically rebuild the snout for me but he took the belt off the supercharger so it wouldn't do anymore damage and so i could continue to drive it while were waiting for the parts to get here.
My mechanic guy is getting older, he's in his 60s, maybe even 70s by now and as he ages he has more pain so he's slow when it comes to fixing things but he does excellent work. So it might be a month or two before he's feeling up to fixing it for me.
I've been driving it without the belt for a few days, is it going to hurt anything to keep driving it that way for a little bit? I sure do miss the power though, lol.

 

[LARRY70GS]

No, you won't hurt anything, you just won't have the power. The noise is made by the coupler, which is easily replaceable. Hopefully, you didn't buy anything more than that. It makes a "marbles in a can" sound and is a common problem. The coupler is a plastic round disc that couples the snout drive to the supercharger rotors. The holes in it wear oblong, and the clearance causes the noise. You could even put the belt back on and drive it if you don't mind the noise while you wait for the mechanic. All that needs to be done is to suck out the supercharger oil (warning, it smells bad), then about 10 or 11 bolts and remove the snout. Replace the coupler, bolt the snout back on with sealer, and add more oil (need 8 oz.)

Here's a kit with most of what you need,

Upgraded Supercharger Oil Coupler Kit fits Eaton Ford Pontiac M90 M112 M122 | eBay

Find many great new & used options and get the best deals for Upgraded Supercharger Oil Coupler Kit fits Eaton Ford Pontiac M90 M112 M122 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Write-Up: Supercharger Coupler Replacement (Series II)

Write-up is below. For questions & discussion on coupler replacements, please see: https://rivperformance.editboard.com/t9160-faq-best-sc-coupler-for-supercharge

rivperformance.editboard.com

 

[rstairs]

No, you won't hurt anything, you just won't have the power. The noise is made by the coupler, which is easily replaceable. Hopefully, you didn't buy anything more than that. It makes a "marbles in a can" sound and is a common problem. The coupler is a plastic round disc that couples the snout drive to the supercharger rotors. The holes in it wear oblong, and the clearance causes the noise. You could even put the belt back on and drive it if you don't mind the noise while you wait for the mechanic. All that needs to be done is to suck out the supercharger oil (warning, it smells bad), then about 10 or 11 bolts and remove the snout. Replace the coupler, bolt the snout back on with sealer, and add more oil (need 8 oz.)

Here's a kit with most of what you need,

Upgraded Supercharger Oil Coupler Kit fits Eaton Ford Pontiac M90 M112 M122 | eBay

Find many great new & used options and get the best deals for Upgraded Supercharger Oil Coupler Kit fits Eaton Ford Pontiac M90 M112 M122 at the best online prices at eBay! Free shipping for many products!

www.ebay.com

Write-Up: Supercharger Coupler Replacement (Series II)

Write-up is below. For questions & discussion on coupler replacements, please see: https://rivperformance.editboard.com/t9160-faq-best-sc-coupler-for-supercharge

rivperformance.editboard.com

Thank you very much!
For some reason I can't exactly remember why, but he didn't think it was the coupler, (maybe there was no play??). So he was leaning towards the bearings needing to be replaced. The kit below is the one he had me get, it has the front and rear bearings, coupler, snap ring, gasket, supercharger oil and a new oil fill/drain plug.
We did look up some videos of bad couplers for an example of the noise it made and it didn't sound like my park ave. My park ave has kind of a groaning/whirring/whining, high pitched humming noise?? Almost like you're low on power steering fluid and driving in circles so the noise is constant.... Sorry it's kind of hard to describe.
I think he had me get the kit I did because it has the coupler and the bearings and that way he could just replace them both.

I just wanted to make sure I wasn't going to hurt the car by driving it because for it being an 04 it's in great condition for michigan!

Pardon Our Interruption...

www.ebay.com

 

[LARRY70GS]

Sure, could be the bearings. The coupler wear is pretty common. You can actually get a fully rebuilt snout, but it is expensive,

Pardon Our Interruption...

www.ebay.com

 

[HotZ28]

The snout bearing failure is very uncommon, unless the snout was very low on oil! I have rebuilt many M-90's and have never found any snout bearings that failed with an adequate amount of oil in the snout. What was the oil level and was it leaking oil?

 

[LARRY70GS]

The snout bearing failure is very uncommon, unless the snout was very low on oil! I have rebuilt many M-90's and have never found any snout bearings that failed with an adequate amount of oil in the snout. What was the oil level and was it leaking oil?

I think most people don't even know about the oil in the supercharger, let alone check it. The coupler noise is very common. I can say this, there are few things that smell worse than used supercharger oil, LOL They should put a clothespin in the kit for your nose!

 

[BuickGirlFromMars]

I think most people don't even know about the oil in the supercharger, let alone check it. The coupler noise is very common. I can say this, there are few things that smell worse than used supercharger oil, LOL They should put a clothespin in the kit for your nose!

Oh god I still have a mix of that and a small amoutn of hydraulic fluid out of my plow unit(old af unit too) that supercharger oil really ... 20 some years and 207k at that time really stretched that 5w30 with animal fats to its limit lol!

Any supercharger noise should always be addressed with a coupler if not recently done, fluid by extension, checking the bypass valve for not sticking or proper operation, then pulleys such as the tensioner especially but those idlers last a long time but not forever, the forward idler for the supercharger was the last thing to make noise before I went and did damn near every pulley. Quiet as can be after.