Rebuilding information

Here is some Novi 2000 rebuilding information I have collected over the years. Be warned this information has been posted by other people in various threads I've read. The Novi 2000 as far as I understand has had some design changes over its lifespan so I cannot verify whether your serial number is compatible with this information. So use at your own risk. I would obviously still recommend sending it into Paxton unless you have a good understanding of the parts required to run the Novi 2000 at factory specs. There was also a supercharger_rebuild.pdf floating around showing how to replace bearings/seals on a Vortech I wanted to include but its file size was just a little too large for the file limit size here. Do a search on maybe corral and you'll find it.

So here ya go:

The oil seal is a CR (chicago rawhide) 9838. It is a rubber seal with a metal case. Cost, are you sitting down, 3 dollars. The main seal, it is just a large "O" ring. Cost, 75 cents. All the bearing were checked at the shop and they said they were in great shape and did not need replacing. They told me that the bearings were very good quality and most likely heavier duty than I needed, but were obsolete now. The charger is about 6 years old. They said they could get the same type though. Cost, 8 bucks each for the small ones, the large one are about 18 each. If I wanted to go one they had on hand it would have been 5 dollars each. I asked what the difference would be and they said the ones on hand should not be spun to 60,000 RPM but could take the 50,000 I am almost at now. Actually with my 7 inch and 3.5 I think I am only at 45,000. So there you have it folks. I have bearing part numbers as well but they are wrote down somewhere and since there doesnt seem to be alot of interest I will save the time from getting them and typing them.

Front Oil Seal

Federal Mogul 472311 and the size is 1.000 x 1.437 x 0.250
Chicago Rawhide 9838

Abec 7/Abec 9 Bearings

The front oil seal is the same size. The guy at the parts counter measured the input shaft and the old seal. The seal I purchased is a CR (Chicago Rawhide) 9838. It is rubber and the fit is great. I will be uploading some pics of it tonight, and the install of which I did in my kitchen.

Now the bearings are a bit more complicated. I got the part numbers from them and the parts store crossed them with available ones. The ones they gave me to purchase looked very good and very heavy duty. There is only one I could not find a part number to, and that is the first large bearing under the front cover. The race is different then I have seen. The parts guy was like I see those all the time and the part number is under the thrust surface, which is pressed in the front cover. But it should be the same size as the bottom one and only should differ on the main race. If you check out my gallary pics you will see the difference. Oh, and reassembly was a piece of cake. Let me get you those numbers.

The large bearing under the main drive gear
Barden brand ME1206, it is a thrust bearing NHBB made in the USA The top bearing differes only in the race that is set inside the cover. Same size and number of ballbearings.

The smaller impeller bearings (2 needed)
Barden 203HX96 Thrust bearings

The guys at the shop said to make sure I get thrust bearings, and that the "thrust" side faces the load.

I hope this helps. If you need any pics please let me know. I am sorry about not reading these PM's sooner as I didnt count the teeth. But if it is really important I will take the cover off again and do it.

Hi , Just take dimensions of impeller shaft and the seal diameter .Then take them to a bearing supplier to find a viton seal that fits. Thats what I did when my novi 1000 was leaking oil. My shaft dia was 0.6230" and my seal dia 1.1875 I used a chicago rawhide seal p/n 6248 Its been one year and no leak. hope this helps