Re: [MBZ] Galvanized steel in cars

2005-06-22 Thread Ralph W.

Jeff Zedic
Toronto
87 300TD
83 300D needs engine...hmmm maybe from a 123.193??


Jeff,
Now why would you want to put an engine from a wagon into a sedan?

Actually now that my wagon has a smashed front end it is the perfect time to 
pull the engine and swap it with the one from your old equipment 
transporter. The engine in my car is getting a bit tired and has lots of 
leaks.


Ralph Wasserbaech
'83 300CD   my car
'90 300D   '01 E320 Wagonwife's cars
'82 300TD  parts car
'82 240D (just sold)
'82 300TD currently smashed 






Re: [MBZ] Galvanized steel in cars

2005-06-21 Thread Jeff Zedic

Allan,

 The problem with the older Toyota truck beds was that they put a seam 
in front of and behind the wheel area and it wasn't properly sealed. In 
fact, there should have been no seam at all!


When they went to a one piece box, rust was exponentially reduced.

Also, the galvanealed process was done later. 89 or so

Jeff Zedic
Toronto
87 300TD
83 300D



Re: [MBZ] Galvanized steel in cars

2005-06-21 Thread Allan Streib

Jeff Zedic wrote:


Ralph,

I can comment on the galvaneeled steel. This is a process developed by 
Toyota in the late 80's that produced a sandwich-like construction of 
galvanized steel in the midcdle, with a layer on either side of a high 
zinc content alloy metal. They claimed that the higher zinc content 
prevented corrosion.


Judging by the rotted condition of a 1987 Toyota truck I used to own, 
and have observed in many others of that era, I would say that claim is 
to be viewed with some skepticism (either that or they did not introduce 
it in their truck line until later).


Allan
--
1983 300D
1966 230




Re: [MBZ] Galvanized steel in cars

2005-06-21 Thread Jeff Zedic

Ralph,

I can comment on the galvaneeled steel. This is a process developed by 
Toyota in the late 80's that produced a sandwich-like construction of 
galvanized steel in the midcdle, with a layer on either side of a high 
zinc content alloy metal. They claimed that the higher zinc content 
prevented corrosion.


 There may also have been special sealer or bondings used but I can't 
remember.


HTH,

Jeff Zedic
Toronto
87 300TD
83 300D needs engine...hmmm maybe from a 123.193??



[MBZ] Galvanized steel in cars

2005-06-20 Thread RW50
There has been a thread discussing coated steel in the bodies of MB's and 
some talk of the 210 not using galvanized steel. Body Engineering is my 
profession so I feel pretty confident in saying that I doubt that any new 
cars sold in the US today use uncoated steels in their exterior sheet 
metal components. Industry standard is that all sheet metal which has an 
interface to the outside elements is coated. There are generally two types 
of coatings , 'Galvanized' and 'Galvaneel' steel. I'm not a materials 
expert so I can't really comment on the differences. The coatings are 
applied to the steel before the parts are pressed. Bodies are not dipped 
in zinc. The real issue with the newer cars is the quality and quantity of 
the coatings which are applied. There was a big push in the 80's and early 
nineties to improve the corrosion performance of vehicles. There has been 
a more recent push to take cost out of the vehicle. Thus thinner coatings 
on the base sheet metal. I hope this adds clarity to the issue and not 
further confusion.

Ralph Wasserbaech