| Author | Message | ||
| billy bob (Fatbillybob)
Junior Member Username: Fatbillybob Post Number: 99 Registered: 8-2002 |
Really these items are pretty low tech. Old struts die because they are really dead! Even low power new ones work better. I have never run accross one that was too powerful...that might be a blessing. And yes you have to take into account teh lenght of the cylinder and the rod not just the total length good point. As to welding and heat and mig on the rod ends takes a few seconds. If you want you could heatsink with a wet towel on the rod by the cylinder but I have never had to do it. I doubt if the mig heat ever gets as hot on the cylinder as the heat that rises in the engine bay of a Ferrari. | ||
| Ric Rainbolt (Ricrain)
Member Username: Ricrain Post Number: 324 Registered: 2-2002 |
Steve, it had occurred to me that the 0400N was in fact the 400 Newton type, but I was hoping for an actual P/N XRef. My TR fronts also need replacing, so we can work together on those. I found a NAPA part I believe that is a direct replacement, no adaptation required. Now that I have some certainty that I know the force values, I at least have a little more to go on.  | ||
| Steve Magnusson (91tr)
Intermediate Member Username: 91tr Post Number: 1245 Registered: 1-2001 |
Ric -- I believe from previous research on my TR front bonnet gas springs that the "0400N" in the Stabilus part number corresponds to 400 Newtons (~90 lbs) if you try to match it up yourself (The TR front bonnet gas springs are labeled ...0330N... and I confirmed with Sachs that the F1 force was 330 Newtons). Unfortunately, the minimal Stabilus/Sachs information on the web has only shrunk over time IMO so the only contact I know of who might have the information you seek is the Sachs Automotive phone number in this post: http://server.ferrarichat.com/~ferrari/ferrarichat.com/discus/messages/112/18703.html. Since winter's here again (and my front bonnet isn't staying up well as usual), I'm working on getting some 80 lb NAPA units (but will require hassling with some bushings from McMaster-Carr to match up the end diameters). | ||
| Ric Rainbolt (Ricrain)
Member Username: Ricrain Post Number: 322 Registered: 2-2002 |
According to the Stabilus web site, for every cylinder size there are at least 6 or 7 different spring values (50-400 Newton). How, by just eyballing it, am I supposed to guess the original force? The old spring is weak so I can't measure it. Without a cross ref to the original P/N, I don't really just want grab whatever fits. | ||
| magoo (Magoo)
Advanced Member Username: Magoo Post Number: 3855 Registered: 2-2001 |
Billy, heating those struts can't be too good for the seal can it? Also too much heat and you have a potential bomb. Maybe it worked for you but those not knowing how to do it could have a problem don't you think? Just a thought. | ||
| magoo (Magoo)
Advanced Member Username: Magoo Post Number: 3854 Registered: 2-2001 |
Ric, I went through that. I finally found mine at Butch Hoopers Italian Design and Racing 480-968-0421. I got the ones with the orig logo on them but he did have the ones without the logo which were cheaper. These were Stabilus struts. Be careful of buying the ones from the auto stores. I couldn't find any to match. When I thought I had one that would work the stroke was different because the cylinder was not long enough to take the rod even though the lengths were the same and the connectors were the same. It would have bent the lid if I had forced it. | ||
| billy bob (Fatbillybob)
Junior Member Username: Fatbillybob Post Number: 100 Registered: 8-2002 |
Go to the autoparts store with the old struts and measure them if the fitting is not quite right cut them off and weld on the right ones. Its really easy takes 10 minutes. just go for size. Works 100% of the time and faster than trying to get the special shock from FNA. Lets see the last one for a Mondial were about 15 bucks! FNA? 30-100-? who knows. | ||
| Ric Rainbolt (Ricrain)
Member Username: Ricrain Post Number: 321 Registered: 2-2002 |
These are the springs that hold up the front and rear bonnets. They're getting weak and I'd like to replace them. | ||
| billy bob (Fatbillybob)
Junior Member Username: Fatbillybob Post Number: 99 Registered: 8-2002 |
Hmm....sounds like Ric is having some fun. What are you trying to do? | ||
| Ric Rainbolt (Ricrain)
Member Username: Ricrain Post Number: 316 Registered: 2-2002 |
I need a couple of springs on the 348, and was looking at the Stabilus web site. Apparently, their part numbering scheme has changed at some point, as none of the numbers on the "Lift-O-Mat" spring correspond to anything in their application guides. The Stabilus number on the old ones are: 094390 0400N 209/97 A 13. The specs are: 6mm rod, designed to accept two 10mm ball connections, full extension is 275mm and compressed length is about 170mm. Does anyone have access to a Boge, Sachs or Mighty Lift application guide or cross-reference guide? |