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I.C. Engine Main Bearing Housing Bores?
- Thread starter AlfaGTA
- Start date
- Replies 33
- Views 5,051
AlfaGTA
Diamond
- Joined
- Dec 13, 2002
- Location
- Benicia California USA
Would like to thank all that took the time to respond.
I like the idea of using a CMM to chart the shell , think that might have merit. (thanks Milland)
No CMM here but have a good relationship with Jim Dour (MegaCycle Cams) who is just up the road...will run the idea past him.
Failing that i will resort to making a test housing as i have done in the past.....Can make it for the standard shells, verify a size then open it up to do the oversize shells.
Again, thanks for all the responses, and kind words....
Cheers Ross
I like the idea of using a CMM to chart the shell , think that might have merit. (thanks Milland)
No CMM here but have a good relationship with Jim Dour (MegaCycle Cams) who is just up the road...will run the idea past him.
Failing that i will resort to making a test housing as i have done in the past.....Can make it for the standard shells, verify a size then open it up to do the oversize shells.
Again, thanks for all the responses, and kind words....
Cheers Ross
kustomizingkid
Titanium
- Joined
- Aug 2, 2010
- Location
- Minnesota
Wish Tony was around... he would have something of value to say. All I can do is drool on my keyboard.
TGTool
Titanium
- Joined
- Sep 22, 2006
- Location
- Stillwater, Oklahoma
That was an interesting view. I remember the H16 from back in the 60's but online videos were far in the future and I never attended an actual race.
The thing that immediately struck me was the unexpected sound. I was anticipating something like a V-12 only with more cylinders, but it has the lumpy sound of a V-8. I was more interested in the engineering and design aspects and recall that it was unreliable, one problem being the beating that the gears linking the crankshafts took. Now that I've heard it run, the vibration problems are less surprising.
Last edited:
eKretz
Diamond; Mod Squad
- Joined
- Mar 27, 2005
- Location
- Northwest Indiana, USA
Thanks for the photos! Cool stuff.
It appears that Mahle/ Vandervell is still making this kind of stuff and for F1 too. Vandervell | Racing & Engine Bearings Manufacturing | MAHLE Motorsport
Even have phone numbers for thecustom shop there.
Even have phone numbers for thecustom shop there.
slowmotion
Cast Iron
- Joined
- Mar 31, 2013
- Location
- Danville Virginia
For those who have never heard what is considered by many to be the best sounding engine ever, skip to about the :30 second mark in this video to hear it under acceleration
BRM V16 Engine Sound - YouTube
BRM V16 Engine Sound - YouTube
TGTool
Titanium
- Joined
- Sep 22, 2006
- Location
- Stillwater, Oklahoma
CarbideBob
Diamond
- Joined
- Jan 14, 2007
- Location
- Flushing/Flint, Michigan
Wow,
Looking at the pictures some people get to work on the neatest stuff.
My job is to make TPG-322s.
OTOH if I scrap one it is a dollar or two lost. If you scrap one of these?
Bob
Looking at the pictures some people get to work on the neatest stuff.
My job is to make TPG-322s.
OTOH if I scrap one it is a dollar or two lost. If you scrap one of these?
Bob
slowmotion
Cast Iron
- Joined
- Mar 31, 2013
- Location
- Danville Virginia
Not that these blocks that I work on are as exotic as a BRM, but I pucker when doing a few different operations on them, including this video. It's mostly the cost factor, billets in the neighborhood of $10K each.
Installing sleeves in Crest Subaru billet block with liquid nitrogen - YouTube
eKretz
Diamond; Mod Squad
- Joined
- Mar 27, 2005
- Location
- Northwest Indiana, USA
Weld it back up and remachine it. So the cost of the many hours of labor. If the entire block got grenaded I'd guess it would be pretty much irreplaceable. So, priceless?
eKretz
Diamond; Mod Squad
- Joined
- Mar 27, 2005
- Location
- Northwest Indiana, USA
For a garden variety DFV/DFX, minimum order was a 100 bearing sets quite recently. If you were related to Methuselah, you might be able to get rid of them to BRM enthusiasts in a lifetime or two.
I'd wonder if Doug Nye was the recipient of any of that info after 30+ years of work on the books and close contact with Rudd?
Homeshopblob
Aluminum
- Joined
- Apr 7, 2021
I've wondered for years how bearing shells are inspected for length and crush during manufacture. They've been made since the the 1920s (I think) so there must be a low tech way of doing it. I've read that the halves are made flat then formed to shape, but can't verify that. The shells I often see don't show any signs of being sized on the ends which would tend to validate that. That does not explaine thrust bearings shells. I've worked on 30s engines with floating rod bearings where the installer sizes the arc of the bearing before installation, but that's a lot less demanding than the crush of a non-floating bearing
Your making a test hosing is all I could ever think of. If you figure it out, please share!
Hail Mary dept - There are engines that used babbitted shells, babbit poured onto steel shell halves and installed from new. If the engine isn't going to be used in anger, perhaps that would at least make it run?
Your making a test hosing is all I could ever think of. If you figure it out, please share!
Hail Mary dept - There are engines that used babbitted shells, babbit poured onto steel shell halves and installed from new. If the engine isn't going to be used in anger, perhaps that would at least make it run?
