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cb750

RHOCaR Member
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Posts posted by cb750

  1. Haven't done a car but I used a variable temperature heat gun on my wrap so that I could adjust to the temperature I needed without melting the wrap! I needed another pair of hands as well. Someone told me to use a hairdrier but I found that was useless. I found that the wrap will creep back where you have had to stretch it when it gets warm again. Just take your time and you should do it!

  2. Have you checked how far the fuel take off pipe goes into the tank? When I checked mine it was about 50 mm off the tank base so I was not getting roughly 20% of the available fuel. Does need to be off the bottom to stop picking up crap!

  3. hi Blue, photo taken as best as I can. Yes its only bolted through the stainless sheet but this has lasted for 15-20,000 miles without problems but I have now improved it as I said by bolting through both verticals and clamping the 2 sides together, 60mm diameter thick washers have been fitted under the bolt head and nut to spread the load. I have put up other photos showing the parts I used for my mod, also showing the reinforcing I have done to the lower shock mounts as I was told that this bottom folded channel has been know to bend (I think it happened when using the original high poundage spring rates which put a shock load down on to it)

     

    Rob

     

    image_zpsffc49bbd.jpg

     

    IMG_5069_zps3f23fd27.jpg

     

    image_zps7e098756.jpg

  4. Forgot to add re the rear bang, check the shock absorber mounting method at the top. Mine had weak angle mounts that had started to come loose and cracked the mounting points on the monocoque. I replaced mine with box section and side plates bolted through reinforcing plates on the boot side, welded up the cracks and added reinforcing plates there. Jobs a "good un"

  5. The top angles hold the nosecone in place on mine, they are bolted through the front member and top of the monocoque sides. I used reinforcing plates underneath. I have had to use a photobucket account to put my photos up as the file sizes were too large like yours.

    Hope you get it sorted

    Rob

  6. Blue, does your front end look similar to mine? This is a 3A. As mentioned before I changed the pivot rod for a long M16 HT bolt ,machined spacers and flanged nylon bushes so that I could clamp both sides of the cross member securely but allow the wishbone to pivot.

     

    image_zps5e9e40a1.jpg

  7. Blue, Just looked at your photo. My cracks were nothing like that! They were only fine stress cracks which were easily welded up. If that is your front suspension pivot rod has it seized in the top wishbone and then twisted in the chassis to cause the tear?

  8. Forgot about that one! Mine hadn't cracked but the pivot rod had rotated and elongated it's mounting hole. I altered the complete rod system by drilling out the holes and replacing the rod with an m16 HT bolt and flanged nylon bushes plus spacer tubes so that the bolt can be tightened fully but the wishbone was free to rotate. The shim system was kept so that geometry can be adjusted. Grease nipple also added

  9. Around the engine mount towers (support trays crack)

     

    At the rear of the tower support trays near bulkhead

     

    Rear of the monocoque where the shock absorber angles or support tubes mount (tubes/angles flex and crack the body)

     

    Top of the scuttle cracked on mine where the previous owner had cut a lot of dash area away to mount the sierra instruments

     

    Area underneath pedal box front if the box hasn't been strengthened. It twists back and forth when the brake/clutch is pressed

     

    Top of bulkhead to monocoque side rails weld has been known to crack

     

    Plus those at the front!!

     

    My gearbox support angle also had the start of cracking around its mounting holes, I replaced this with box section.

     

    All mine were reinforced and professionally welded up

  10. I've done something similar to snapperpaul at the rear of my 3A. I used 3mm steel plates inside and out of the boot sides that go the full length of the boot. The rollbar sits on plates welded to the bottom of these and are triangulated for strength. The rollbar is adapted to bolt down through these plates and I have used high tensile U bolts instead of the standard ones that were in the kit.

     

    To improve the shock mounts and to take some of the load off the side of the monocoque, 50mm square tube with top and bottom extensions is bolted through these plates as well as bolting through reinforcing plates that sit inside the monocoque side "tubes" at the original mounting points. The shocks locate on these 50mm tubes. These don't twist or deflect like the original angle iron mounts that were supplied

     

    I can't post a photo as all my pics are too large and I can't get them down small enough. If you want any pics please PM me with your email address.

    Rob

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