I'm sure it's been done before but I'll post it anyway did one last winter and now I'm on to another I know there are things I'll do when I rebuild mine that some don't but I have done one it works great so I'll start with this
This is the part that is really time making the ribs match side to side and sanding down the old rough casting consuming Sent from my Pixel 2 using The H.A.M.B. mobile app
I see many that do not match the ribs side to side. I had to match mine as well. If your gonna do it, do it well!
One rib left to match the shape then on to final cleaning and ***y. The new bearing endplate from Dpi has the look their parts are great Sent from my Pixel 2 using The H.A.M.B. mobile app
I see the factory ***embly support flanges on the bottom of the case have been removed, did you get the pleasure of doing that, not many people can say they have removed them. They are usually the first mod to a GMC casting when converting to non diesel use. Have you seen this HAMB thread? https://www.jalopyjournal.com/forum/threads/tech-week-6-71-blower-rebuild.367403/
Yes I cut them ****ers off my case was a virgin I have seen said thread I agree with most of what was done in that thread I did not machine my gears on last one used the shims as Dean said he knows his stuff Sent from my Pixel 2 using The H.A.M.B. mobile app
Thanks for the price and a local company only about 60 miles from me and has that nostalgic look Sent from my Pixel 2 using The H.A.M.B. mobile app
Ok so I thought I would share these bearing numbers rear bearing number is. 62052rsc3. That is the sealed high speed number front open high speed is as follows Fit -093. I figured I'd share these part numbers as I bought a kit but I know you could source them cheaper the seals have no part number on the Sent from my Pixel 2 using The H.A.M.B. mobile app
Someone said you can buy those bearings at Tractor Supply, I never checked myself. Have you got a link or name for that rear plate?
I have no clue seen the plans and the prototype never seen any completed Sent from my Pixel 2 using The H.A.M.B. mobile app
Their website shows a lot of blower related components, everything but the cases. When the owners son was posting regularly here it appeared they were in production. I do recall they were involved in other manufacturing unrelated to blowers. Being a retired machinist I imagine this was quite an undertaking and could have run into tooling issues.
Are they anything like these http://www.edelbrock.com/automotive/mc/superchargers/enforcer-sbc.shtml .
I have their rear bearing plate too, machined to perfection. Their products are very reasonable for the quality they produce. I talked to the owner, and they do everything in house from design to foundry to machining.
Out of curiosity, when a 6-71 blower is converted and used for automotive use, how are the bearings lubricated? I am pretty sure that in the Detroit Diesel, they are oil feed. In my read of the modifications it almost sounds like the one end is filled with oil , and the other uses sealed bearings. But the rpm they are run at makes me wonder if that would be adequate. Thanks Sent from my iPhone using H.A.M.B.
That's the way they are set up, sealed in the rear and oil in the front. I seen where a guy popped the outer dust shields off the rear bearings and installed grease fittings in the rear bearing plates.
The rear bearings are sealed the fronts are open and wider then the rear the fronts have more load on them then rear the fronts are in oil Sent from my Pixel 2 using The H.A.M.B. mobile app
I always put grease fittings on mine and use high temp grease to lubricate them periodically never had any trouble but like anything maintenance will prevent failure you just don't want to over do it or seal failure will result the front bearings are a double row ball bearing the rear are a single row roller bearing on a Detroit i typically use them instead of a single row ball bearing like the sealed ones you have shown just a personal preference also I prefer the double lip seals vs the single lip rubber seals that Detroit originally used however they are more difficult to install and need the proper tool to install and typically use a seal spacer installed on the rotor shaft Just my .02 cents after 200,000 trouble free miles on my avatar blower Sent from my iPhone using H.A.M.B.
Thanks. The grease fitting would be for the rear bearing? You must use a bearing that is sealed only on one side so the grease can get in? For the front bearing, the case area around the bearing is modified to allow filling with oil? What kind of oil? Motor oil? And how full? Maybe half way up the bearing? Is there a bearing in the nose of the extension housing near where the pulley is on the shaft? Or is it cantilevered and that is why the double row ball bearing in the front? Thanks. One of these days, I want a blown engine. Sent from my iPhone using The H.A.M.B. mobile app
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