Does anybody know the type/specs/qty of fluid in the end casings of the supercharger ?

Thanls!

JP

 

You can look for GM Supercharger oil, since GM uses Eaton Superchargers. Not sure of the ammount needed.

 

M45 in a miata takes 4 oz, IIRC.

GM stores sell it in the proper quantity, ~$6 last time I bought some. And it smells nasty...

 

Is there any DYI on how to do this? How often should it be done? Never had a SC car before. Thanks.

Bomboasy

 

Quick Answer... It does not need to be done... Unless there is a reason to dissasemble the supercharger

 

You need a syringe and small dia tube to suck it out. There is a hex head set screw at the end of the supercharger near the pulley. You remove it, suck out the oil, and replace it with new. It's a 100,000 mile interval, not a big deal.

 

Does anyone know how much SC oil goes on the pulley side and the waterpump side, respectively ???

I have my SC out for inspection at 49,500 miles and much to my dismay, I only got about half an ounce out of the pump side (there was alot of dirt and grease covering the water pump, which I am assuming may have come from the SC.

I have not yet opened the pulley side yet, but I would like to get an idea of how much oil for each side since the unit is now out of the car and I do not have a spec.

Thanks in advance....

 

waterpump drive side- 2.5oz; nose gear side(pulley side)5.5oz
GM part #12345982 4oz tube; current price ??
Hope this helps,
Happy Motoring, Jeff

 

So it can easily be done with the supercharger installed? About how long does it take and I assume the inner fender has to come off?

Rich

 

Pretty sure you can do the belt side with the SC, but you cant do the pump side without removing it.

 

I have not done mine yet, maybe next month? I found the fluid info on NAM several months ago. I'm going to try to suck out the old oil from both sides of the SC with a fluid extractor( powered by shop air) without taking the unit off I'm sure some things will have to removed to get access to the fill plugs,will find out what when I get there? Wish me good luck

Happy Motoring, Jeff

 

I could be wrong, but from what I read in a previous issue of MC2 Mag, the whole front end needs to come off in order to do any maintenance. It's demo with Dr. Obnoxs' car. The gear set of the water pump was bone dry and gears were grinding dry.

 

+1 however Ive also heard 4.5oz for the pulley side... Theres a fill plug just like the Transmission that will let you know when theres enough fluid in there...

 

Correction, it's not Dr. Obnoxs' car, but it defintely about the rattling sound coming from the supercharger due to lack of lubrication on the water pump reservoir

So is it really servicable? That article said there's nothing we can do.

 

Two answer for one question that is a little ambiguous.

1. It is entirely possible to pull the SC off the car, replace and top off the lubricants on both sides and then reinstall. If it suites your fancy you can also replace the gaskets in the process of doing so.

2. It used to be that if the SC gears ate themselves that your only option was a new SC. However there is now at least on company out there capable of repairing the gear side if it is destroyed. It's possible that the article was written before that, which would be why the SC was called unserviceable.

 

After the gears go, there are no replacement parts, but the oil can be changed to help ensure it doesn't go dry to begin with.

 

MiniKJ, Yes I saw that article in MC2. It may take me a few hours to gain access to the fill plugs on the supercharger. A little time now may save me the cost of repairs or replacement later. Just something I fell like doing and worth the time invested. I will let everyone know how it goes.
Happy Motoring, Jeff

 

If anybody is still reading this thread....

Supercharger oil is a very thin full synthetic motor oil. When we
rebuild supercharger we usually use a 5W or at worst a 10W
full synthetic oil. We recommend that the oil is changed after a 500
mile break-in period and every 20K - 30K miles. We also install magnetic
oil fill plugs so they need to be cleaned before install.

Also, when changing the oil you will need to run the motor for about
5 minutes before removing the oil (this makes sure any dirt/metal particles
are suspended in the oil). You will also need a syringe with a 6" - 8" hose
to suck the oil out of the supercharger. Inspect the oil. We also recommend
that you flush the supercharger at least once because you can not get all the
oil out of the supercharger. Run the engine another 5 minutes and pull the
oil out again. Inspect the oil by pouring some onto a nice white sheet of
paper and inspect for dirt or metal particles(if there is excessive amounts
of metal particles something is most likely going wrong). Repeat the flush
if needed and until the oil is clean. Replace the oil for the last time filling
until the oil is at the level of the fill hole.

You can buy the GM supercharger oil but if you do flush the supercharger
the cost of the oil gets excessive. One or two qts. is usually plenty to
flush a couple of times and a refill.

We do offer a kit for those who cannot or don not want to find the
syringe/hose combo. Kit comes with oil,flush oil,syringe w/hose. We sell
it for basically what it costs us - for our customers.

NOTE: NEVER put gear lube into the supercharger. The oil is to thick which
creates a great deal of heat..... usually causing seal failure. NEVER!

We have had supercharger come in that the customer put gear lube into
it to quite the bearing noise. The supercharger got so hot the paint blistered
off the supercharger and melted the seals!

 

Does your kit come with a how to? prior to purchasing the kit, can I look through the how to?

 

me too...

 

You can get to the drain plugs with engine in working order... Or at least without removing the radiator.

 

To be clear, it is the water pump drive side that leaks fluid, destroys the gear and overheats the motor. I do not think this can be serviced in the car. I have not tried because I always remove the charger to inspect the gear and re-seal the case. This is worth while and only adds a few for minutes to the job. This is not very difficult to do and is the same work required for replacement, but you save the $1500 parts fee. The few that I have serviced were empty on the pump side and only slightly low on the pulley side. Don't fool yourself by only doing the pulley side.

I have seen them low between 75k and 115k. Each time there has been enough warning to take care of it before damage occured. One friend let it go after hearing the rattle, people in parking lots were bringing up. It took between 10 to 15k before it overheated and killed the gears.

 

so what other warnings does a leaking waterpump side of the SC makes? apart from the noise....anything else to check for this leak?

 

Inspecting the oil when doing the change or just a level
check can give you a lot of information. If excess dirt or
metal particles are present in the oil then something is
going wrong. At that point there is repairs in the near future
(the sooner the cheaper - usually).

Noise is the other determining factor. If the unit is making
noise then the same situation applies (sooner the cheaper).

Also, for the other poster.
The oil kits we have contain two 12oz. bottles of oil, syringe
with a 6" - 8" hose (for sucking out the oil), magnetic oil fill
plug (only works in superchargers we have rebuilt/ "rethreaded
holes"), instructions. Kit is $25.00

We add the second bottle for the flushing process. Supercharger
might need to be flushed more than once. Both bottles have the
same oil.

As far as the instructions they are basically what wrote in the
prior posting. But if anyone really needs them I can E-mail them a copy.
Send me your E-mail at supercharger@excite.com and I will E-mail
back the instructions.


Charles
Supercharger Technologies
supercharger@excite.com
352-542-0147 Fax:352-542-9468

 

Just a question...we one were to buy the M45 of the shelf would it already be oiled? or is it worth it to reoil it...Im considering to get a second one just in case the one in my car is gone...

Note: my sc is already on 67k and 15k of those with a 17% pulley...
now its max boost is 14.8psi at 6.5k rpm (amb. temp was 33 deg C thou)