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JohnD

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Posts posted by JohnD

  1. The original engine is not "interference".    But as johnny said, a high-lift cam and big skim can make it so.

    Thank you Colin for the namecheck on loss of true TDC.   Roger, as suggested above, it may be that the damper on your crank pulley has shifted.    Triumph added a crank damper to the sixes, when nine of their fours had one, because the longer crank shaft would bring the frequencies at which torsional vibration  will occur down into the rev range, when in the fours they are above.     The damper is a heavy steel ring, the "inertia ring", bonded by a rubber ring to the hub of the pulley.      After more than  fifty years in the heat and oil of the engine compartment, there is no wonder that the rubber has perished, many dampers are no longer effective, some have lost adhesion so that the inertia ring has turned, taking the TDC markings away from their proper place, and a few have become completely detached!     I have published a detailed account of Torsional Vibration, in TRaction and the Courier.    See “Crankshaft Torsional Vibration”, Traction March/April 2020, pp41-43

    Detatchedseismicringfrom2LVitesse.thumb.JPG.d0a1fb0198138ec6fef1cb728eb9d254.JPG

    I am, I think, the only person in the World who can test crank dampers on my engine rig!    I would gladly do that for you, Roger, postage from Sweden might not be cheap, but I have provided this service for people in Germany and France.   But a quick test will show you if the inertia ring has shifted: determine TDC by another method, a piston stop is best.   When you know true TDC, is that the same as your crank pulley indicates?    If not, the ring has shifted and the damper is useless.

    John 

     

     

    • Like 1
    • Thanks 1
  2. Mea Culpa!   

    But those are what the trade call "Paid Advertising Copy"!    I always hope to find in the Courier interesting articles, so I look in the Contents page, and in this case the "Events" page, which although it includes Area events as far ahead as August, makes no mention of Malvern.  The TSSC website "Events" page has miraculously been populated in the last 24 hours, and does mention the Inter-Club International at Malvern, but along with nine other parochial Area events!   And when you click on that entry the details are, inexplicably, projected on a background of the pits at the old Rheims-Gueux circuit in France!
     

    Why isn't the TSSC making more of the biggest Triumph AND other classics show of the year?

    John

    PS I'm nothing to do with the event organisers, who for historical reasons probably wouldn't want me anyway.

    PPS The Three Counties Showground at Malvern, has an excellent camp site attached!    I recommend it for  anyone who likes to camp or camper van!  https://www.threecounties.co.uk/news/three-counties-campsite-opens-26-april-2021/

  3. 2 hours ago, Steve P said:

    The ones Canley do are re-manufactured and have three mounting holes for the wishbone , top middle and bottom.

    I have them on my converted Vitesse, I think it is to allow for adjustment of camber, I have mine on the middle setting and the wheel sits vertical at rest. I do have a TriumphTune de-cambered spring from back in the day which makes it more negative than standard. It handles like a go cart.

    I think the originals were one mounting hole.

    Steve

    Three mounting holes!   Wow!  I did that in about 1996, when I was re-building Old Blue Vitesse.     An article from long, long ago when the Courier was called "Turning Circle" described in engineering detail the nature of the Rotaflex suspension, and how it might be improved.   The author ( C.K.Eikhoff - his article was "Rear Suspension Talk" Turning Circle No.14, Feb '89, pp. 9-15) found that lowering the wishbone pivot point by 60mm (2.4"!) would minimise camber change and reduce Rotaflex plunge, while a lesser drop of 44mm (1.7") would abolish plunge. 
     

    As I was fitting Rotaflex to a previously swing-axled car, I made three sets of wishbone brackets, to match the OE dimensions, those of Eickhoff's 60mm drop (Eikhoff 'B') and another set, used by other racers which dropped the eye only 1" but also pushed it out by 5mm:

    Bolt-onwishbonebrackets2.jpg.17ca95e5ebe35373b97f1f5cd488c6ba.jpg
     

    As you will note, they were designed to be BOLTED, not welded to the chassis rail so that I might compare and contrast each set.   I regret, for my scientific reputation that I tried out the "Racing" brackets and was so impressed that I never tried Eickhoffs!

    Has anyone used the triply drilled Canley brackets?      What are the dimensions of the three holes locations?      If only I'd patented my designs, I could sue Canleys!!
     

    And, has anyone heard of Eickhoff ever since?

    JOhn

     

    • Like 1
  4. WoW! Yes it is!  Thank you, Pete!

    So, why wasn't there a proper link in Facebook, or a mention in the Courier?   A simple (!?) https://www.tssc.org.uk/tssc/uploaded_files/A4 TSSC Tax Disc 2024.pdf  would have been much more useful!

    But, Pete, if the TSSC had really "spent years getting rid  of road tax" then your reply might make sense.  These are "classic" cars from the "Classic" car age, when we all had to display something, even if it was Guinness bottle label.   Surely the originality people will love having a original looking disc on their windscreen.    The alternative as a small rectangular sticker is neither original nor imaginative!

    John
     

     

  5. I posted the above two months ago, when the TRR announced that the International 2024, would be "Inter-Cub", to which all UK classic car clubs are invited, and already many clubs have shown their interest in such a forward-thinking and cooperative event.   It will be at the gorgeous Malvern Show Ground on June 28th to the 30th.    Note that date in your diaries!

    I looked forward to seeing a notice, here on the TSSC website or in the Courier, but December went by, my January copy arrived today and there is no mention of an "Inter-Club International" .   Surely all Triumpheroes will want be there, so that TSSC members will be disappointed if they aren't?  I have no idea why the TSSC seems to reluctant to publicise it  - please TSSC, tell all your members!   Or tell us why not.

    John

  6. AidanT,

    If you possibly can engine and gearbox together.  Yu need a "Load Leveller" on your hoist and a high enough lifting point.  Here's how, on my Vitesse.   Note contrary to the WSM advice you do NOT need to take off the bonnet!

    Engineoutsequence.thumb.jpg.9dce15a32ef72f2639d3f8d8252401ac.jpg

    • Like 1
  7. Thank you Roger!

    A most ingenious method!   I will retain that in long term memory, just in case!

    John

    PS. I notice several welding spatter marks in the number 2 & 3 bores, but you will be doing a hone, if not a rebore, so no matter.    But worth covering the block face when doing this job?  J.

  8. I don't think you need a 'remote' camera.    On the TRansit, my rear view cameras are mounted on the back of the van, one pointing down, one back.   The latter provides the 'rear view mirror'  and simplifies backing.     Yes, I suppose that like a reversing sensor, one on the trailer could ward against hitting the wall behind, but keeping the trailer straight when going backwards is a bigger task!

    image.thumb.png.d9b8cfd4fde0d3b0242da815e22481d6.png

  9. Talk to Rimmers.    OR Mark Field, I think he has some, also for either end of the main oil gallery. 

    That deserves being opened and then drilled out, but you need to press out the oil pump drive Bush to do that, and buy a really long drill, with parabolic flutes.   I don't know how Triumph produced that, it's full of little projections as if it was CAST rather than drilled!

    Block dip - good idea! But once comes out of the final wash it will be so clean that it could flash rust.  Get it home ASAP and give it the WD40 treatment

    John

    • Thanks 1
  10. 1 hour ago, rlubikey said:

    I was going to say, the problem is it might have been programmed by the same people who did the Post Office accounting system. :lol:

    But then I went on to read Pete's post:-

    ... and realised the hackers/malware/"Nasty Nations" don't even have to hack, they simply put the malicious information out there on the web to "steer" the AI (as it learns) to give the answers they want.

    Now I'm really depressed. In fact I've got a pain in all the diodes down my left side.

    I think I'll drink my self into oblivion.

    Cheers, hic! Richard

    Now THERE is a very good point (steering AIs).    But who has hold of the tiller?  Humans!   Even in  America (don't know about UK)  face recognition is biased towards white faces, because it's those that appear on the 'Net.    Bias perpetuates bias.

  11. 17 minutes ago, DVD3500 said:

    With regard to guns: They have a very limited range of household uses when compared to say... x-rays...?

    Early TV sets had a thick cover over the front of the CRT that was lead glass - they emitted X-rays!

    But what's your quibble?   Household use of guns?  In the US, there are 1.2 guns in legal ownership for every American.  So they are certainly, in some societies, a household factor.  The criminal.use of guns is a different matter, in every country.

  12. Steve,

    Dismantle and rough/clean the surfaces, as before.    Then grease them where they contact each other with a "conductive grease" ( https://www.amazon.co.uk/s?k=conductive+grease&adgrpid=52839051826&hvadid=259032990207&hvdev=c&hvlocphy=1006854&hvnetw=g&hvqmt=e&hvrand=13151397456398697064&hvtargid=kwd-306759865908&hydadcr=4398_1795150&tag=googhydr-21&ref=pd_sl_89mdcd6149_e ) Other suppliers are available.

    Reassemble, and then grease over them with Vaseline.  Include the battery terminal.   That should provide the best protection and conduction that you can.

     

    BUT!   That you need to do this repeatedly makes me wonder (I don't know the Astra) if the junction box is getting a lot of road spray.  Work out where it's coming from, and make up some sort of under bonnet deflector, to keep it away.   You might ask on an Astra Owners website if anyone else has this problem:  https://www.astraownersnetwork.co.uk/

    John

     

     

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