Posted by paulj on Sunday, July 13, 2008 @ 08:41 PM:
Hi All:
Does anyone have some info on replacing the bungee absorbers for the RF4 main gear (source, cost, etc.)? I am also curious if anyone has the spring rate for the bungee absorbers to compare with some of the spring designs I've seen on the websites? Thanks in advance for any help.
Paul Jackson
N30X Rebuild
Posted by Donald on Monday, July 14, 2008 @ 01:47 AM:
Did you check the earlier thread in this forum? http://sbeaver.com/Fournier/cgi-bin/forums/index.pl?session=09pyKKOGUyLFiaY1MyKt6ABoTx&forum=11&thread=387
Contact Eugenio in case he still has some stock.
Cannot help with the spring rate.
Posted by eugenio on Tuesday, July 15, 2008 @ 11:46 AM:
RF4 bungees are rated 400Kg (each). Last batch ordered was requested 450 Kg, because the original were too short lasting (mine lasted two years only). Now it's nearly 4 years I have the stronger set and they still works fine.
Eugenio
Posted by Bob Grimstead on Friday, July 18, 2008 @ 11:13 AM:
Hi Folks,
Please would somebody be kind enough to post a step-by-step check-list of how to replace an RF4's bungees?
Thanks.
Yours, Bob
Posted by Jorgen on Friday, July 18, 2008 @ 03:52 PM:
Hi Bob,
I´m curious too. Like all tricky jobs on Fourniers, I think that´s Eugenios cue.
Come tutti l'atteragi- chi troppo in alto sale, cade sovente- e vero, Eugenio?
Take 5(b) just 4 fun/ Jörgen, SE-UDI, SE-XST
Posted by eugenio on Saturday, July 19, 2008 @ 03:30 PM:
It's the easiest thing to do if the old ones are not blow out. With the aircraft lifted and the fork free to move you only have to remove the two 10mm long bolts keeping the bungees in place. If the bungees are blown they became shorter and keeps the fork in full extended position, this is also why when you have blown bungees you hear the fork knocking against the stop. In this case it is a little harder to remove them, but they came apart the same twisting and tilting the bolts.
Installing new ones is easier because you have two to five mm of play. Remember to place all bushing, spacers and all things you remove.
No fancy tricks needed, nor hexotic tools, just an 8mm allen key and a 17mm wrench.
ciao
Eugenio
Posted by Bob Grimstead on Saturday, August 9, 2008 @ 05:34 AM:
Thank you very much Eugenio.
Ciao!
Bob
