Original post........
Original post........
Last edited by Chuck Miller; 04-09-2014 at 10:16 AM.
Look on the back side of the wheels. The steel centers should be riveted to the alloy rims.
PS: I can actually see the rivets through the holes in your picture. Look for the button-heads...
-Marco
SReg. #778 OGrp: #8 RGrp: #---
TLG Auto: Website
Searching for engine #907495 and gearbox 902/1 #229687
Raj,
The factory steel wheels had a alloy rim riveted to the steel center.
The only other ones are after market. They are much thicker than the factory ones but are all alloy.
John
1959 356 Coupe, 1600 Super, sold
1960 356 Roaster, race car, SCCA, sold
1960 356 Roadster, show car, sold.
1962 356 Cab, show car, sold.
1965 911 #301111, Red Book Vol 1 "Cover Car," owned 54 years.
1967 911 #307347, bare-bones, some road wear, a little surface rust, and a few dents..., owned 14 years.
1970 914/6GT, (Sold - ran the last three Rennsports)owned 30 years.
Photography Site: JohnStraubImageWorks.com
Registry #983
R Gruppe #741
Raj - are you talking about those with steel centres with alloy rims as used on the 356 Carrera, 904 etc ?
I had a set of 904 wheels a couple of years ago & they had the weight (3.7kg) stamped into the centre along with the part number:
Of course, you could always try a magnet against the rims ...
Andy
Early 911S Reg #753
R Gruppe #105
Raj,
I believe they were aluminum outer rims.
John
1959 356 Coupe, 1600 Super, sold
1960 356 Roaster, race car, SCCA, sold
1960 356 Roadster, show car, sold.
1962 356 Cab, show car, sold.
1965 911 #301111, Red Book Vol 1 "Cover Car," owned 54 years.
1967 911 #307347, bare-bones, some road wear, a little surface rust, and a few dents..., owned 14 years.
1970 914/6GT, (Sold - ran the last three Rennsports)owned 30 years.
Photography Site: JohnStraubImageWorks.com
Registry #983
R Gruppe #741
Speaking of stamped weights, I see that in Raj's original picture as well.
Nice picture, Raj. Very cool stuff if you know what you're lookin' at.
-Marco
SReg. #778 OGrp: #8 RGrp: #---
TLG Auto: Website
Searching for engine #907495 and gearbox 902/1 #229687
Just a thought: I wonder how many sets of these wheels have been kicked aside or passed over throughout the years because people "didn't know what they were looking at."
-Marco
SReg. #778 OGrp: #8 RGrp: #---
TLG Auto: Website
Searching for engine #907495 and gearbox 902/1 #229687
How were these wheels finished? Was the entire wheel painted silver?
Andy,
The 3,7 that is on the center is the thickness. I was first introduced to center thickness on the 550 wheels. There was a early failure problem and the thin ones were replaced at no charge to the owners. By the time they were making the 130mm alu/steel wheels they were very concerened about the thickness. Some of the wheels on the 4 cam SCs were 3.9. The rest of the wheels were upped to 3.9 about 68 or so. (I would have to check my records for a good date)
All of the failures that I have seen on these wheels were in the center.
Many do not have hub cap bumps on them. (some 205s don't have clips either) The ones that do, I assumed that they were put on street cars. But if you look closely you can see the bumps on many racers. At some point they were used interchangeably.
I have never seen a wheel done in other than silver. Except for the 300SL wheels-many of those were chromed in the center and the outer was polished.
I have seen them in 4.5, 5, 5.5, 6, 7, & 9 wide. Also some very early ones were 16". Those seem to all be 4 wide.
Also there were at least 3 different riviting styles. 13-19 rivets and 6 to 8mm sizes.
Harvey
Harvey - thanks for the clarification on the '3.7' marking
Andy
Early 911S Reg #753
R Gruppe #105
Posting Permissions
Reply With Quote