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1967 Moto Guzzi V700 Corsa-Record

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  • neilb
    replied
    progress is progress no matter how small

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  • cliffrod
    replied
    The last several weeks have been busy in studio, but shipped that job a week ago so I had a little time & $$$ to do bike stuff before the next stone arrives.

    I want to use Italian parts when I can. If not, I want to make parts that look Italian. I've had a crashed Ceriani 35mm top clamp or triple tree in the too-good-to-throw-away pile for years. I had plans to use the clamp portions from it as basis for headlight ears but decided on another path.

    Using card stock, I made a simple pattern for the ear.







    I transferred patterns to .125 thick 5000 series aluminum and cut them a little oversized, did some bending, welding, filing, sanding, etc and made a practice ear. This pic shows them bead blasted as I was trying to decide on the surface I wanted. In the end, I polished them.





    To attach these to the fork tubes and after studying some more, I settled upon the making clamps to mimic Dellorto carb clamps. Earlier ones, like on SS1 carbs, were aluminum and solid. Later ones, apparently around the time of the V7 Sport, are a folded piece of steel. I decided the folded design would be the best choice to weld to the ear. NOS Dellorto bolts & nuts were ordered. A pattern was made. Using a 35mm knockout punch, I punched two holes and drilled a third smaller hole between these holes. Folding them accurately is not too hard but I'm still working on doing it better to avoid stressing the bend. After everything was bent and trimmed for the nut & bolt, a slot was cut to make the clamp functional.

    love a knockout punch-



    The hole fits the hammered sportster fork tube perfectly- very cool.



    Now making the clamps-











    Not knowing how the welding would go, I made one clamp slightly wider than the other one.



    Today I went to town to restock welding supplies. Back at the shop, I decided to try welding everything together. Didn't get pics of the TIG welding and grinding, but my welding is getting better. I used a scrap 35mm sportster tube to align the clamps. Lots of trimming, then welding and more filing, grinding & polishing and I have a practice headlight ear.











    I still need to install this on my bike, mark & drill the hole to mount the headlight. I'm using the long headlight on this bike to help house any electrical components are needed. Need to make a few adjustments, but this ear will work well to develop a proper pattern.

    Between pending projects and the holidays, it will probably be awhile before much gets done. No matter- it feels good to make some progress.

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  • cliffrod
    replied
    Full update copy & paste from WIldGuzzi thread,,with a little repeat stuff because y'all get preview updates along the way..

    At this point, I've decided I will be making a new seat and rear fender after using the ones in hand for all fitment and experimentation. My welding is improving and there's no reason to try to make these pieces perfect. It will be faster to make good ones and hang these up as souvenirs.


    Saying I've wanted to build a bike around one of these CEV taillights for years isn't far from the truth. Among others, these lights came on Ducati 175 & 200 Elite models in the late 50's and very early 60's. imho, it's a perfect fit to incoprporate into a typical cafe racer seat. I had already trimmed off the back of my first seat, so now it was time to weld in a basic mounting platform.

    This lamp assembly uses two ancient 6v bullet-ended bulbs. I'm still sorting out the details about the lamp upgrade. Saw some similar sized LED bullet ended builds that might work or may just use a regular or LED 1157. Until I get all in place with fender, I'm waiting on developing the lamp interior.

    So I made a pattern to fit the hump, turned a simple flange to facilitate welding and welded it in place. Only blew one hole this time and then quickly fixed it.





    Looks ok on the bike. Should be able to center the next one even better.



    After the taillight was mounted, I started working on mounting and initial trimming of the rear fender. After studying enough pics, I understood the front mount was a pair of small L brackets that rivet to the fender. Before making them, I added a lateral bead across the leading end to both clear the frame cross member below the battery tray and to stiffen the fender. Not sure that it's necessary to have the fender this long, but it's easier to cut it off later than to add it...



    After bead was added (with simple hammer & stump/dolly work), the fender was marked and trimmed to length.





    The L brackets were pretty simple to make from 16g crs. After a pair were bent, I had to mark & drill holes to attach these via the two bolts at the rear of the battery tray.





    Transferring holes can be done with a cross made from two pieces of tape. At the intersection, the sticky sides face each other. Use one layer of tape to tape it to the piece with the hole. Mark the hole as you like. Place the part to receive the pattern in place. Use the other sticky face to attach the pattern to the receiving part & remove the tape from the original part. Make your hole.





    After that, I marked holes for the fender rivets before drilling the bracket & then the fender. For now, I'll use small bolts instead of rivets. Not sure if I'll make new brackets for the new fender.later or reuse these.



    With the front mounts done, I moved to the rear of the fender. Before trimming it to initial length, I wanted to add a narrow bead across the end. This will stiffen the fender and is similar to the bead found on the trailing edge of a V7 Sport fender. For this one, I simply freehand end a bead with a cross pein hammer using another cross pein hammer held in the vise as a dolly. It isn't perfect, but wasn't meant to be. It was fast & easy and looks good.





    After the bead was done, I marked the fender and trimmed it to length. I thought it looked good but Tip wasn't impressed.



    Test mounting the fender and seat on bike looked good, even with the frame loop intact.





    I left the fender slightly longer than the height of a handy license plate. The angle isn't very vertical, but should be manageable. Cannot really deal with this until the frame is cut because the frame is in the way.





    Now was time to add a vertical loop for mounting the seat & rear fender and to tie the frame together after the rear loop was cut. No handy channel in my scrap inventory. so I welded two equal lengths of 1/2" angle into a channel, made a pair of pie cuts at the bends & welded it up, fish-mouthed the ends to fit the frame, ground everything clean and welded it to the frame.



    Then made a couple of cuts and removed the rear frame loop.



    Now the seat and fender look much better-









    I did make it to both shows, including the nearby Tryon (NC) Rolling Art car, truck and bike show. I first displayed the bike here last year, so wanted to have some progress to show. Saw several old friends, made some new ones and had a great time.



    Yesterday and today, I had time to resolve the fork brace. The original Record bikes simply utilized a lower or rear font fender brace turned vertical and attached at the upper fender mounts via two small tab brackets. Very simple, probably not incredibly effective but that's what they did so that's what I'm doing. First I had to relieve the stamped end to clear the weld at the bottom of the fork slider.



    After removing two broken fender mounting bolts from the fork lowers, I made a quick pattern from card stock and transferred it to some handy 14? gauge crs. Ganged the pieces together to sand them to even shape, then drilled and countersunk holes.







    Some simple bending to match parts was followed by lots of trial fitting. Once all fit well, all was cleaned to prep for brazing. Brazed area was then cleaned, masked and spray painted black like the original Record bikes.





    Fits well and looks good- very cool...

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  • cliffrod
    replied
    Thanks for the likes and good comments. I'm pretty happy with the lines now. Still haven't fixed/finished the buck yet. I've been wide open on this stone -nearly finished, pics coming.

    I've decided that I'll make a new seat and fender. These have been great to have for practice, design and fitment resolution. My welding is improving. After the punishment these have endured, trying to perfect them now seems dumb. They'll look good on the wall.

    I've also continued studying pics of the original bikes. The rear fender has lots of Lancaster-style markings along the sides. The tanks are not particularly smooth like parts that have been wheeled, probably because Italian methods of the period would have been shaping by Maglio or hammer & stump and planishing over a surface plate. Close review of the pics seem to confirm this method. So I've surfaced a 9" X 12" X 2 1/4" thick steel that I've been saving for just such a purpose & will try to make the tank that way...

    Will try to get the build details updated in the next few days. Headed to show #1 now...

    Leave a comment:


  • neilb
    commented on 's reply
    i like the look of the shape of the tank cliffy

  • cliffrod
    replied
    My favorite new picture.. More to come.

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  • cliffrod
    commented on 's reply
    I knew I could count on you, Neil. maybe if I called my improved bad welds pudding (quote from WRay's reply to Chris) instead of bubble gum, I might sound more learned...?

    Too funny- tried to be funny but this iPad's autocorrect won't even let me type his name. it must be a sign.... Off to the shop,

  • neilb
    replied
    we are still watching what you are doing, practice makes better

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  • cliffrod
    replied
    While y'all were watching some damn video over & over again today, I worked on my seat instead. In a perfect world, I would like this to serve as an example of what you can do when you put the effort into practicing what you preach instead of preaching what you should practice..... Don't get distracted by the distractions that will ALWAYS be around you. Stay focused upon the right things.

    Got a basic support for the taillight developed. Turned a flange around it & then welded it in place with the same torch and slightly better amateur efficiency. Blew one dime size hole (big lump to right of top center....) and then fixed it. I still need to fine tune it all, build an actual lamp housing, resolve the fender brace-license plate bracket, etc but it's closer to built & should look better to display next Saturday & Sunday as planned.

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  • cliffrod
    replied
    Lately there's been no bike time, but made a little progress this afternoon. It was raining (after 50 days since rain..) and I didn't feel like juggling other projects around the wet stuff.

    The bike has been up here on the carport for a couple of weeks while I needed space for another project in my metal shop. The tank buck has been irritating me. Tried to get a good match of shape from various pics & the clay, decided it was good enough and then slammed it out to get it together for display at our late July bike rally. It still didn't look right, especially the interaction with the distributor, but I chalked that up to cutting approx 4" from the rear of the tank.

    Took a few minutes this afternoon and found the sans-fairing right side view picture I needed. Then I laid a straightedge along the bottom of the tank and pulled a string to match the location on the bike. The problem I had was that I had developed the tank clay & buck as orderly, specifically with the flat bottom of the tank being parallel to the lower frame rail. When the clay was shorter top to bottom while parallel, it didn't look right. When I fattened it up and made the wooden buck, it looked better but still not right. Finally realized the original basic utilitarian tank was not made & installed with a bottom parallel to lower frame rail. This was probably deliberate to make certain fuel tended to carry towards the petcocks near the back of the tank.

    The string clarified that I had the rear of the tank spot on correct and the bottom was flat. But the front needed approx 1 1/2" inches removed from the bottom. A little time on the bandsaw & big sander and it's looking much better.

    Side views of revised tank buck with string in place between top of rear shock and exposed fork spring-

    [img]https://i.ibb.co/R701s9h/image.jpg[/imp]



    I may replace some of the stations on the buck as I fair it, but happier with the overall shape and fit now. It's also easier to see the engine, which is always very cool...

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  • cliffrod
    commented on 's reply
    Great to hear there's another Guzzi man here. I was going to make similar parts to kit my V7 Sport before this loop showed up dirt cheap, just because I have it & figured it would make the purists howl. I'm expecting to make at least a seat for a friend's Tonti-frame cafe build as my fluency improves. No leads on rotors but will keep you in mind.

  • OldnEK
    replied
    Good job Clifford.
    I have a 850 LM3 and will be doing something very similar in the near future.
    Problem is trying to find cheap front rotors for mine first.

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  • cliffrod
    replied
    Since the last post, I have deepened the relief/indent across the front of the seat. That is closing the wedge gap between the rear portion of the seat and frame near the blue tape. I'll probably deepen it some more. Hopefully more it rests on the frame, the less likely it will be to bend. This is also kicking up the rear of the seat to benefit license plate mount & tire clearance, which is very cool. I'm not averse to making a new seat if needed after all the issues are sorted with this one. We'll see.

    A quick pic of the taillight in the trimmed seat. Not mounted yet beyond duct tape and I'm playing with mounting depth. I want the CEV stamp and part numbers on the chromed trim to be visible & not hidden, but not wanting a surface mount look. I need to develop the lamp assembly to replace the original one using two little 6v barrel or bullet-ended bulbs. I'm looking at similar dimensioned off-the-shelf lamps that could be easily modified, bulb orientation and mounting configuration within the seat.



    Just because I like the older square-style license plate holder doesn't mean it fits particularly well. For now, I used a spare CEV assembly (probably from a Sprint) as a pattern. An oversized blank for the license plate holder was cut from the same scrap aluminum, with additional material welded to accommodate the lamp area. The center will be trimmed away to allow a deeper lamp with regular 1157 bulb or LED equivalent.







    Still have a long way to go with my welding. I should be practicing on larger coupons, with all known materials, probably have more tip sizes,.. Still, I'm trying to develop an ability to work on a real part when it matters. I've done the same with my studio tools. Doesn't matter if I can make nice samples. If they don't work and cannot be trusted when it counts, they're junk and I can be in deep trouble. In the very near future, I'll have to weld mounts into the seat hump and would prefer not to burn giant holes or have to make a large repair section... Gotta be able to do it right the first time.

    Making the license plate holder with a fender mount that is strong enough may require a different configuration than this design, no matter what I add for beading and edge detail. I know where these types of taillight/plate mounts typically flex and break, especially on four stroke singles. There will be more room & things will change when I cut away the rear frame loop (diagonally, at the blue tape), but I don't plan to cut the frame until the seat-fender-taillight detail is 100% resolved. Losing that factory rear fender mount as a reference point will be significant.

    Time is short for this bike fun for the near future. I have a couple of events to do, a stone to finish and trying to get a wheeled dolly fabricated for my Gairu so that can be moved into my shop asap. I would like to have the current taillight & related shaping stuff sorted by Nov 1 and will post what I can along the way.

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  • cliffrod
    commented on 's reply
    Thanks, Will. Feels good to be making some progress. See you soon.

  • RockHillWill
    replied
    Nice work Clint!.

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