Jason C
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Hi @glang! Apologies for my tardy reply, this is really helpful. I’ll do some investigation on specialists locally that could make a new prop shaft. The postage to NZ would perhaps be prohibitive for the size and weight. Do you think the best course of action would be to remove the prop shaft from the car and take to a specialist to build one from new? Also, I have now received a nice new OD speedo cable, another part ready in the kit. 🙂 Thank you
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Thanks @glang this is a great help! Is the 43.5inch measurement from end to end? If I reuse the existing prop-shaft, I would need to find an expert to cut down the prop shaft itself, to make the 43.5inch total length? Do people typically rebuild the prop shaft, replace UJ etc while it‘s removed? Thank you
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Hi @glang nice one, yup I have sourced a Stanpart overdrive adaptor plate. Also have the mount bracket and rubber mount. 🙂 Current item to ponder is the prop shaft, namely how long it should be. And the cleanest method to cut the gearbox tunnel and make a cover.
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Hi @glang yup, have the correct main shaft for the unit. Thanks for cross checking, most appreciated. Always best to have the correct parts to help reduce frustrations when it’s open on the bench. Appreciate all the help guys!
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Great info, thanks @RobPearce by the sounds the standard Smiths OD cable length should be perfect. My current non-OD cable has a nice flowing curve, seems plenty. @Martins Stag Good idea! Would you believe I still have the original cardboard material, but should be able to add a port, maybe with a simple large rubber bung. Hi there @glang, looking to rebuild the original box (needs rebuilding in any case), and fit the Overdrive at the same time. Have most of the major parts, need to rebuild gearbox and overdrive. Its been a very slow burn as have other items to fix... 🙂
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Interestingly, a Smiths Speedometer flexible drive catalogue from 1968 lists the Vitesse, 2 Litre OD with a 1525mm length cable. Although, the Vitesse would have originally been fitted with a D-type OD. Anyone know if the D-type is a similar dimension to that of the J-type unit?
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Hi @Martins Stag thanks for the pointers, will aim for a nice smooth arc. Thanks @RobPearce very useful info! Perhaps I will try the original cable on for size once the OD unit is in the car. By the way, did your Vitesse have a bracket to secure to Speedo cable within the engine bay? Thank you @thescrapman good tip, just checked my angle drive. Connects perfectly to the drive, I managed to find an original Smiths one. Thank you all, most appreciated.
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Hi folks, Slowly working through items to purchase for my overdrive conversion. Good things take time, so people tell me. 🙂 I am installing a J-Type Overdrive unit to my Triumph Vitesse, 2 Litre, 1968. Does anyone know what the length of Speedo Cable should be to accommodate the overdrive unit? My non-overdrive speedo cable measures 1400mm long from end to end of the inner cable. Would 1600mm be correct? Enough cable to be safe...? Thank you
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Thanks @glang will scout out beneath the car and make a bracket. 🙂
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Sounds great @JohnD are any sealant types/brands preferable? Guessing only a small amount on the gasket? Are there any flexible sealants that scrap off easy later on... My thoughts exactly @glang ! This bracket should reduce some of the strain. Attached a picture from the manual - referring to bracket 'B'. Thanks chaps
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Thanks all for your help with my manifold questions! Another couple of things I’m pondering; - My current extractors are connected to the exhaust pipe with a 'slip joint' and a U bolt clamp. Is it preferable to use sealant on exhaust slip joints, (in this case steel pipes) or best to simply connect without any sealant? The old sealant just broke away like brittle dust. - Best to use the exhaust gasket only, without any sealant? The cylinder head exhaust surface area is nice and flat. When removing the gasket was broken by one port, not sure if due to the homemade extractors not being true. - It appears the original exhaust had a curved mount bolted to the bottom of the engine to support the exhaust pipe here, are these still available? Thank you
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Has a sweet sound to it, “gentleman's carriage” until you push your foot on the pedal. 🙂
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Most interesting @glang any idea of the difference of diameter pipe between the two? I’ve found the Mk1 version of the exhaust harder to track down to purchase, maybe because its less popular. @RobPearce Love this phrase! And perhaps the Mk2 was one of the very first "hot saloons"? Before the format become popular.
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@RobPearce Interesting that the Mk1 had the additional silencer at the front, and removed for a straight through pipe on the Mk2 – do you think to improve performance? Thanks @drofgum this is a really interesting design note! I noticed the exhaust manifold has almost like a little shelf, perhaps as you mention to aid in heat transfer.
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Thanks @RobPearce I like the sound of the engine being quieter, not that it is noisy. On a different path, I noticed Triumph originally had sound deadening material on the timing cover, so they must have been interested in keeping sound levels down. By chance do you know which stainless steel exhaust closely matches the original design? Looking for a standard exhaust, non sports, baffled muffler... Most appreciated @glang it would be cool to coat in a similar colour to the original appearance. The few I have seen off a car have been rusty, I wonder if theres a method to return back to how they may have left the factory – but perhaps they change colour over time anyway.
