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Attention!!! - DB6 owners - Pillion seat failure

 
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2bims



Joined: 03 Apr 2010
Posts: 5576

PostPosted: Wed Jun 06, 2018 8:18 pm    Post subject: Attention!!! - DB6 owners - Pillion seat failure Reply with quote

As per the title.....I have a spare Riders seat and spare pillion seat pad....and decided to send to a upholsterer to make it comfier, taller, longer fore and aft and prettier....more of that later......

I took the 2 No. Ascerbis rubber bump bases off both rear pillion pads....single allen bolt on each....and was disturbed to find that on both pillion seat pads....the plastic base that contains the moulded in-situ threaded inserts for the pillion "strap" that hold it in place....they both had multiple splits and cracks around the fixings...that were straight through the base unit...on one...the threaded insert was all but loose and free!!!!....Seeing as I rarely carry a pillion....and thus rarely is the strap grabbed...not such an issue....but I would suggest all Owners of DB6 and biposto DB5 owners remove their pillion pad....unbolt and remove the 2 No. front rubber Ascerbis bump stops and then the strap comes free....then analyse all around the black plastic seat base....I had cracks all over....the plastic seems to be made of recycled Black bin bags and is certainly poorer quality than the base of the riders pad......



remove these bungs and check underneath (strap removed previously)



I've already 2-pack epoxyed my seat bases...but they were full of cracks and splits all the way thru the plastic base



I've repaired both units with 2-pack epoxy glue....tie down strapped up seats to hold whilst going off...and overlayed with epoxy 2-pack also...The darn things were cracking eveywhere....not just around the strap fixing bolts....my ruddy DB2 has better plastic than these things...and thats 25 years old....

I pulled off the rubber base pad on the underside of one unit...and found a makers mark....and a date of manufacture...some 10 years ago

selle Dalla Vallee - Italy Operator No. 3






The area under the pillion pad is where the branch of the headers meets and splits into the two end cans...the bodywork has heat protective material around it on the inside faces...but its reflective...and theres a nice gap as shown below where I imagine some heat is rising right to the point of the cracking on the pillion pad....

gap to left of cross frame rail



Yup...this is the shock you can see right through to




I've modded up and fitted a heat baffle plate and stuck to the cross frame rail under the perch to try and keep heat away from the seat

So its gone from this with gap



to this with no gap and heat baffle



Reason for looking?? The seats are made for tiny italian arses....or just certainly not my arse...so the seat trimmer/fabricator man is raising the seat foam some 1-2 inches....which with the tapered ends gives more length...currently the sunken flat part measure just 16cms fore to aft....with the raising this gives 21/22cms...or put another way...31% to 38% more length on the riders perch...and with increased height and depth...comfier...and hopefully less knee/ankle fatigue

I'm blatantly "copying" MotoCorse design from their Tesi3D brochure range (Darn you Gav for that brochure....this is now costing me a small Ransom to mod...)


Shocked

This is what I'm aiming for...complete with off English white/beige leather which is being sent away to gain its perforations....red leather on the sides...diamond cross stitching on the base seat in contrasting red stitching....and the pillion pad is being treated also as per the picture....with a rigid triangular wedge adding onto its top to give the appearance of it being a monoposto (dont do pillions anyhow).....I draw the line at copying the MotoCorse Cm logo...but am having the Bimota "b" logo instead stitched in red and black on a drop down sewed in tab as per where the motocorse one is situated...Fingers crossed it all comes out well.....



Tempted for the tri-color stripes....jurys still out (not going with the "bimota" or Experience bit)...less is more



This is some of their previous work so they know their cross stitching and needle work





Also now dropped off KDX seat also for black side panels and Kwacker green ribbed top cover...cheapo vinyl of course...and that would complete this bike then...shame to lose the Kawasaki on the side....but its an original cover from 2001...and slippier than a most slippy thing

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2bims



Joined: 03 Apr 2010
Posts: 5576

PostPosted: Wed Jun 06, 2018 8:35 pm    Post subject: Reply with quote

MotoCorse do sell the seats on their website....although its confusing with prices as not all the site is in English....but going off "large and small"...for rider and pillion....prices range from £1020 up to £1960.....and then theres shipping, import duty and tax to pay...COugh cough cough

http://www.motocorse.jp/products/specal_ordermade_seat/index.html





Now if someone could just photoshop those seats onto this...

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Gavca



Joined: 01 Jan 2019
Posts: 15
Location: Rio de Janeiro

PostPosted: Tue Jan 01, 2019 7:25 pm    Post subject: Reply with quote

Hello, mate!
I have just purchased an used DB6R and the pillion seat was also broken the same way as yours. Did your patch resolved the issue? Or did you contact the italian factory eventually?
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2bims



Joined: 03 Apr 2010
Posts: 5576

PostPosted: Tue Jan 01, 2019 8:47 pm    Post subject: Reply with quote

I didn't contact the factory (Bimota) because it is no more.....You could try finding the actual factory that made it before Bimota fitted it? I used 2-pack epoxy to glue mine back together...its worked so far
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2bims



Joined: 03 Apr 2010
Posts: 5576

PostPosted: Tue Jan 01, 2019 8:48 pm    Post subject: Reply with quote

Gavca wrote:
Hello, mate!
I have just purchased an used DB6R and the pillion seat was also broken the same way as yours. Did your patch resolved the issue? Or did you contact the italian factory eventually?



Is the plastic "tab" at the rear of the pillion seat still in one piece? There is an easy fix for that if its broken using a bent piece of alloy plate that you can locate and slide under the plastic of the base...
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Gavca



Joined: 01 Jan 2019
Posts: 15
Location: Rio de Janeiro

PostPosted: Wed Jan 02, 2019 4:45 am    Post subject: Reply with quote

2bims wrote:
I didn't contact the factory (Bimota) because it is no more.....You could try finding the actual factory that made it before Bimota fitted it? I used 2-pack epoxy to glue mine back together...its worked so far


2bims, when I mentioned the “italian factory” I meant the one that produced the pastic piece before Bimota assembled it. By your answer, I am assuming you didn’t.
By the way, do you know of any new developments on the partners litigation? Is there any chance some party will keep the Bimota’s name alive? It is such a shame fot the world to loose such a magnificent legacy.
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Gavca



Joined: 01 Jan 2019
Posts: 15
Location: Rio de Janeiro

PostPosted: Wed Jan 02, 2019 4:49 am    Post subject: Reply with quote

2bims wrote:
Gavca wrote:
Hello, mate!
I have just purchased an used DB6R and the pillion seat was also broken the same way as yours. Did your patch resolved the issue? Or did you contact the italian factory eventually?



Is the plastic "tab" at the rear of the pillion seat still in one piece? There is an easy fix for that if its broken using a bent piece of alloy plate that you can locate and slide under the plastic of the base...


By the way it looks I can say it has been “fixed” by the previous owner. I was thinking of a way to correct it, but your tip is excellent! I will give it a try!
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Gavca



Joined: 01 Jan 2019
Posts: 15
Location: Rio de Janeiro

PostPosted: Thu Jan 03, 2019 12:00 am    Post subject: Reply with quote

2bims wrote:
Gavca wrote:
Hello, mate!
I have just purchased an used DB6R and the pillion seat was also broken the same way as yours. Did your patch resolved the issue? Or did you contact the italian factory eventually?



Is the plastic "tab" at the rear of the pillion seat still in one piece? There is an easy fix for that if its broken using a bent piece of alloy plate that you can locate and slide under the plastic of the base...


2bims, would you be so kind to send a picture of the fix you did on yours?
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2bims



Joined: 03 Apr 2010
Posts: 5576

PostPosted: Thu Jan 03, 2019 8:19 am    Post subject: Reply with quote

The plastic tab is still intact on mine....here is a post from Bimota Classic Parts on Facebook of how he fixed his seat:-

https://www.facebook.com/groups/1573525059530286/permalink/1994241850791936/
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Gavca



Joined: 01 Jan 2019
Posts: 15
Location: Rio de Janeiro

PostPosted: Fri Jan 04, 2019 3:24 am    Post subject: Reply with quote

Thank you, 2bims. Its a closed group. I’ve just requested approval to join.
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quikduk



Joined: 13 Aug 2016
Posts: 205
Location: Southern California, USA

PostPosted: Fri Jan 04, 2019 11:34 pm    Post subject: Reply with quote

2bims,

That heat shield is on my to-do list as I put my DB6 back together. Re: the BCP tail clip modification, I toyed with their idea...maybe before they posted their mod and decided to glue and rivet mine to the plastic pan. So far so good. Now I just need to get some two-part epoxy and fix my pillion seat pan like you did.

Happy New Years
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quikduk



Joined: 13 Aug 2016
Posts: 205
Location: Southern California, USA

PostPosted: Tue Jan 15, 2019 10:44 pm    Post subject: Reply with quote

2bims,

I just epoxied my pillion seat bumper mounts. I built up a nice 3mm layer and had to sand it down about half way as the pillion became too hard to latch the centering pin. After a bit of work and repainting, it went together fine.

I still need to do the heat shield but later.
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2bims



Joined: 03 Apr 2010
Posts: 5576

PostPosted: Wed Jan 16, 2019 9:28 am    Post subject: Reply with quote

Good on ya QuikDuc…..its a bit of a faff...but as they say "a stich in time saves nine".....so better to do early as the cracking only gets worse...and on my spare seat pad it was so bad the vinyl had started to tear visibly on the front face up from the base.....2-pack epoxy seems to do the job...you just cant lay it on too thick or else it "skins" over but is still motile underneath...so layer by layer....
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