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 Post subject: TT/F1 (1984-1986) for 2021
PostPosted: Mon Jan 04, 2021 11:59 am 
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Joined: Thu Oct 14, 2010 11:23 am
Posts: 1811
Well, here is my project for 2021. A reasonable copy of one of these. There were a lot of mechanical and cosmetic differences in all of them from 1984-1987, depending on changing technology and whether they were used for endurance or sprint races. And, I will have to make do with what can be found today. MikeV

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The "mystery" engine is destined for this pile of parts. I must have started collecting what was needed five or more (eight) years ago, and cannot really remember. Finally found the NOS Brembo QR calipers for 300mm discs last year. Some work has been completed over the last two or so years.

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The frame kit was from RED FOX (Jan de Vos), and it included the complete swingarm, hoop, shock pivot, the front fairing bracket, and an aluminum oil vapor tank. I also bought the tail section from him since it seems to best match the original. I cannot say with certainty, but some complaint from Jan suggested the frame was built in Italy --- I do not by whom. Like any frame kit, it is [mostly] all there but some things just don't seem to be "right" or fit correctly and have to be modified. It is now primed, and I am waiting for better weather to paint it.

The fairing and belly pan are from a 400cc F3 from a bike from Thailand! They are like the F1 Laguna Seca, with a different cooler opening and 5/8th-inch wider windscreen. I have now cut it and modified it to have the smaller opening and flattened look this TT/F1 had. The front fender is from Glen at the new Sports in NZ. It is a really good copy of the original. Back to the seat/tail, I have also changed that profile to make it look closer. The tank is from Europlast in Italy; the profile and fit is good, but I wish it did not have that seam around the lower edge; it presents a problem trying to keep the clear vertical strip to view the gasoline content. At this point I only need to paint the fairing top and the tank.

I have had the M1Rs for some time, and had them on my F1 for about a year. I will strip the paint off to bare aluminum and do whatever maintenance they need, but they are good. I am glad I bought one of Gary Patton's CNCd and anodized top triple clamps to fit on the Paso lower. The Paso has the correct specs and the short stem that fits most TT frames; the stem is 1mm smaller, but there is a correct bearing. The Brembo QR calipers kit was perfect once I figured out which way the adapters bolt on! 300mm discs will be used.

The engine will be completed once the cylinders and pistons are back from Millennium Tech to be bored to 94mm, re-plated, and honed. They actually asked if I want .0025" or .003" clearance --- depending on how it was to be used. Good grief. I am like Paul, I can hardly tell the difference in wheel diameters on the track. This will be a 916cc, with a 94 x 66mm bore and stroke. I want to get some more RPMs out of a 900cc engine, rather than more torque. More on the engine later.

Anyway, this is enough for today. MikeV


Last edited by 618F1 on Thu Jan 07, 2021 1:31 am, edited 2 times in total.

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 Post subject: Re: TT/F1 (1984-1986) for 2021
PostPosted: Mon Jan 04, 2021 9:38 pm 
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Joined: Mon Jul 11, 2016 8:44 pm
Posts: 94
Location: Atlanta
Huzzah for project bikes!

This looks as though it will be very nice when complete!


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 Post subject: Re: TT/F1 (1984-1986) for 2021
PostPosted: Tue Jan 05, 2021 10:14 am 
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Joined: Sat Oct 29, 2011 3:38 pm
Posts: 798
Mike, another great project by you!
I look forward to your progress... now get too it!
Paul


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 Post subject: Re: TT/F1 (1984-1986) for 2021
PostPosted: Tue Jan 05, 2021 11:26 am 
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Joined: Sat Feb 25, 2017 11:51 am
Posts: 588
I already like it!!!
Clay


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 Post subject: Re: TT/F1 (1984-1986) for 2021
PostPosted: Tue Jan 05, 2021 2:01 pm 
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Joined: Thu Oct 28, 2010 4:44 am
Posts: 1786
Images: 7
618F1 wrote:
Well, here is my project for 2021. A reasonable copy of one of these. There were a lot of mechanical and cosmetic differences in all of them from 1984-1986, depending on changing technology and whether they were used for endurance or sprint races. And, I will have to make do with what can be found today. MikeV

Attachment:
a4_ducati_tt_s86.jpg


Attachment:
beyreuther_217.jpg


The "mystery" engine is destined for this pile of parts. I must have started collecting what was needed five or more (eight) years ago, and cannot really remember. Finally found the NOS Brembo QR calipers for 300mm discs last year. Some work has been completed over the last two or so years.

Attachment:
IM007772.JPG


Attachment:
IM007776.JPG


Attachment:
IMG_1035.JPG


Attachment:
IMG_1036.JPG


Attachment:
IMG_2198.JPG


Attachment:
IMG_2196.JPG


The frame kit was from RED FOX (Jan de Vos), and it included the complete swingarm, hoop, shock pivot, the front fairing bracket, and an aluminum oil vapor tank. I also bought the tail section from him since it seems to best match the original. I cannot say with certainty, but some complaint from Jan suggested the frame was built in Italy --- I do not by whom. Like any frame kit, it is [mostly] all there but some things just don't seem to be "right" or fit correctly and have to be modified. It is now primed, and I am waiting for better weather to paint it.

The fairing and belly pan are from a 400cc F3 from a bike from Thailand! They are like the F1 Laguna Seca, with a different cooler opening and 5/8th-inch wider windscreen. I have now cut it and modified it to have the smaller opening and flattened look this TT/F1 had. The front fender is from Glen at the new Sports in NZ. It is a really good copy of the original. Back to the seat/tail, I have also changed that profile to make it look closer. The tank is from Europlast in Italy; the profile and fit is good, but I wish it did not have that seam around the lower edge. At this point I only need to paint the fairing top and the tank.

I have had the M1Rs for some time, and had them on my F1 for about a year. I will strip the paint off to bare aluminum and do whatever maintenance they need, but they are good. I am glad I bought one of Gary Patton's CNCd and anodized top triple clamps to fit on the Paso lower. The Paso has the correct specs and the short stem that fits most TT frames; the stem is 1mm smaller, but there is a correct bearing. The Brembo QR calipers kit was perfect once I figured out which way the adapters bolt on! 300mm discs will be used.

The engine will be completed once the cylinders and pistons are back from Millennium Tech to be bored to 94mm, re-plated, and honed. They actually asked if I want .0025" or .003" clearance ---depending on how it was to be used. Good grief. I am like Paul, I can hardly tell the difference in wheel diameters on the track. This will be a 916cc, with a 94 x 66mm bore and stroke. I want to get some more RPMs out of a 900cc engine, rather than more torque. More on the engine later.

Anyway, this is enough for today. MikeV


what do you want in exchange for brembo cnc calipers? :cry: :cry:


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 Post subject: Re: TT/F1 (1984-1986) for 2021
PostPosted: Tue Jan 05, 2021 9:22 pm 
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Joined: Thu Oct 14, 2010 11:23 am
Posts: 1811
I think mine are forged, or cast. But how about for a Moretti TT? MikeV


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 Post subject: Re: TT/F1 (1984-1986) for 2021
PostPosted: Thu Jan 07, 2021 4:12 am 
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Joined: Sun May 08, 2011 12:17 pm
Posts: 407
Location: Europe
What ability to achieve interesting things....


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 Post subject: Re: TT/F1 (1984-1986) for 2021
PostPosted: Sat Jan 09, 2021 2:12 pm 
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Joined: Thu Oct 14, 2010 11:23 am
Posts: 1811
I believe the pistons and cylinders will be here next week and I can go back to finish the engine.

One of the most time-consuming tasks has been making the F3 fairing, tank, and tail section fit and look compatible. A lot of cutting and reinforcing was needed on the fairing upper. Unfortunately the clear strip on the tank is not possible because of a high seam around the entire bottom that required even more Bondo to make the sides flat. I cut a slice out of the sides of the tail to lower it in back. I think the overall profile of all three will look good once painted and assembled. I am very satisfied with the fit now, and just finished installing or setting up the Dzus fasteners. MikeV

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Last edited by 618F1 on Sat Jan 09, 2021 10:32 pm, edited 1 time in total.

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 Post subject: Re: TT/F1 (1984-1986) for 2021
PostPosted: Sat Jan 09, 2021 8:34 pm 
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Joined: Tue Mar 18, 2014 10:03 am
Posts: 362
When I first saw the production fairing it made me wonder why you would use that. Now I see your method to your madness. I think you nailed the "look". Impressive, nice job.
Flattop.


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 Post subject: Re: TT/F1 (1984-1986) for 2021
PostPosted: Sat Jan 09, 2021 10:21 pm 
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Joined: Thu Oct 14, 2010 11:23 am
Posts: 1811
Thank you flattop. Yes, there is some madness to this. Not everything is technical perfection; some of this is “art”. Simply using the F1 fairing does not really work. And I do not mean to criticize those who have done that, but this is my effort. MikeV


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