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  1. Tekton

    Rim design upper limit (steel)

    When working in Ghana during the 70's I was initially surprised that our fleet of 6 Peugeot 504's often returned to base with wheel rims sufficiently buckled they would have lost air if not shod with tubed radials Careful examination of the suspension showed no ill affects whatsoever other than...
  2. Tekton

    Increasing exhaust valve size 8v turbo engine

    Regardless of substituted turbo, manifolding, valve sizes, and ecu settings, inferior drivibility and excessive emissions are risked if the combustion chamber and piston crown contours are not complementary, as originally manufactured OEM's invest multiple millions creating optimal swirl...
  3. Tekton

    Downsized charged engines, peak cylinder pressures?

    Decipha, were the economy figures you quote calculated by filling the gas tank with known volumes of fuel, which were then divided into known distance covered - - or from dash guage readouts? Tekton
  4. Tekton

    Tuning gasoline engine running diesel

    A short story regarding a gasoline engine which happily ran on diesel - - for a while A decade ago an acquaintance was driving a 1987 VW Golf 4 door, GF engine code, 1781 cc, 8.4 : 1 compression, Bosch K Jetronic injection - - in decent mechanical condition Departing from Vancouver BC in...
  5. Tekton

    Downsized charged engines, peak cylinder pressures?

    If the vehicle in question is tested under near identical part load conditions, the N.A. and Turboed cylinder pressures will likewise be near identical Since operating the turbo creates a net loss of energy through heat dissipation and the exhaust pressure required to rotate the turbo, yet...
  6. Tekton

    Is turbocohen still onthis Forum?

    In recent years there has been talk of inferior quality LP-Gas being substituted, with subsequent performance and durability losses to auto engines Presumably however it still falls within established API automobile standards - - ? What brands if any retain the original specifications? Is...
  7. Tekton

    metal compatibility roller rocker conversion

    Turbo and Tmoose, thanks for your suggestions and links, which I shall investigate carefully Our application differs from the OP's in that we intend swaging 5mm od hollow pins into either end of the rocker arms, one to support an approximately 15mm od roller acting on the camshaft lobe, the...
  8. Tekton

    metal compatibility roller rocker conversion

    Turbo, since commissioning a few dozen one off specials is prohibitively expensive, can you suggest any production applications where one might purchase L25 or L-605 pins and/or bushings which, if they cannot be directly substituted or incorporated in the experimental valve train, hopefully...
  9. Tekton

    Starter fuels for a diesel engine

    As IMike has asked, what is the vehicle application - - furthermore, what are it's operating conditions and the source & composition of this "heavy oil"? If discarded cooking oil for instance - - reduced fuel costs will be more than offset by inferior engine durability due to premature...
  10. Tekton

    metal compatibility roller rocker conversion

    Fascinating, Tm - - can you think of any standard applications for these two components - - presumably a leaded bronze bush and centerless ground hardened pin would be the better match - - I imagine there's a decent choice of, for instance, "needle" bearing rollers for pins, but what std...
  11. Tekton

    How to measure fuel consumption (flow) with a small carburetor 2-stroke engine

    "Solo Wings" microlights utilise Rotax twin cylinder gravity feed carburetted two stroke engines with a very accurate electronic real time fuel consumption readout - - can't recall the manufacturer's name but they must be commercially available Tekton
  12. Tekton

    Diesel fuel possibilities

    Apologies for the above link, being a prece of the Uniservices Report released for Engine Reconditioners - - and Here's the link I meant to post: Tektonhttp://files.engineering.com/getfile.aspx?folder=d24cb7c7-c7a7-4f22-988a-91fb8786452c&file=2_Smoking_Diesel.pdf
  13. Tekton

    Diesel fuel possibilities

    Fahlin, thank you for graciously accepting my somewhat diversionary posts Mr Lada, with the hundreds of thousands of Asian IDI engines manufactured, the total lack of oe technical data to permit ready identification of sibling components and, shall we say "misinformation" provided by...
  14. Tekton

    Diesel fuel possibilities

    Hemi, I wish I could expound, as the finer points of combustion technology have fascinated me for decades I became acquainted with IDI components and combustion technology during general study a generation ago, then intimately in the late 90's when developing a range of pre combustion cups and...
  15. Tekton

    Diesel fuel possibilities

    This report provides dramatic proof of how severely engine performance and emissions are affected when the uninformed and/or ignorant alter an IDI engine's oe specifications Indirect Diesel Injection engines, though rapidly being superseded by the direct injection designs permitted by superior...
  16. Tekton

    Diesel fuel possibilities

    This doesn't sound correct IDI engine technology requires a pre combustion chamber to ensure the atomised fuel vapourises and initiates combustion within the comparitively oxygen rare confines of the chamber before emerging through the pre combustion chamber port, ricocheting off the specially...
  17. Tekton

    Detroit 453

    Detroit Diesel 2 stroke engines incorporate a moveable flap between the air cleaner and blower When closed they starve the engine of air, which will then exhibit the exact symptoms you describe Their purpose is to prevent engine damage caused by overspeeding, which can occur if oil or other...

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