johny
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Everything posted by johny
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What convinces you it's not a pinhole leak in the tank? Very difficult to find as the fuel evaporates immediately and most likely at the bottom where water would have accumulated....
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The PRV spring only changes the maximum pressure reached not the minimum. 50 is fine so enjoy😊
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Dolly 1850 single rail gearbox in to mk3 GT6
johny replied to Graham C's topic in Gearbox & Overdrive
That's the title of the thread😂 -
Yes I'm sure sooner or later it's going to get nasty with a civil lawsuit against a driver or even the law makers because an insurance company refuses to pay out. In fact I can't believe how suspiciously quiet the insurers have been.....
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I think the sliding joint bottoms out on the prop before the tip of the spline shaft. Certainly doesn't look like you'd get 15 mm without taking some off the outer slider as well and the you'd have to retap some thread but suppose that's easier than prop shortening.....
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Canleys only list one flange for J types fitted to MK4 and 1500 Spitfires and it's 160286 same as sellers listing on eBay....
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Don't fancy that coupling on eBay then Joe? It definitely looks shorter than yours but I don't know by how much.....
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This is a Spitfire J type OD and the output seems to protrude more than Joe's so presumably the coupling is shorter?
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Have a look on eBay for 160286 flange. This is the part number for j type OD item but you would need to check with vendor that is actually shorter than what you already have.....
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Thinking about it you could be right about the prop because presumably this box is as it came from a US GT6 so they must have used a shorter prop there. Also I assumed the flanges were interchangeable but with Triumph you can't assume anything so it sounds like you need quite a specific item. I still think there must be one somewhere though....
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Havent got flange off original gearbox? Pity to shorten prop as it will be even more difficult to access the coupling bolts and short flanges are quite plentiful here. The number is from a US GT6 so looks good.....
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Yes you're looking for a KF or WH followed by numbers but it could be over stamped with something else if its been reconditioned....
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It should be a good gearbox as it incorporates almost all the improvements that Triumph made during the production of these cars👍
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Please let us know if it works as these things are good to know🤓
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No Joe, as Scrapman says you just need the shorter rear coupling flange to get a standard OD propshaft to fit. In fact you should be able to use the one off your non OD gearbox and it's an easy job which should make your new box 1" shorter.....
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Sorry just reread your previous post and see that this box is 10cm longer than original non OD box which of course is perfectly possible. So yes that gearbox looks like it's going to be the same length as a standard Vitesse OD one....
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Yes that's a J type OD but I can't understand why it's so much longer than the original box when normally you would expect no more than 1" difference compared to the standard D type gearbox. The serial number stamped on the top RH side of the cast iron gear case would be useful to know as well....
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Definitely not a D type overdrive but pics of the box and prop would be useful
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Ive wondered about using one of those old triumph floor mounted switches you see so much on ebay to operate the overdrive. Would be pretty convenient if theres room next to the clutch pedal.....
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Hi Graham, as an aside, I take it this is a single rail box you're fitting and wondered how you've adapted the GT6 bell housing to fit it?
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Think you might have more luck with a rubber washer but of course there's not much 'land' for sealing is there.....
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Thanks it's just I'm too tight to pay out when my originals are still perfect🤑
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I think you got the explanation there right because a rise in ambient temp can't produce enough pressure to lift the cap otherwise the system could be sitting there with 13psi in it which would make opening the cap difficult. Also don't forget the hoses expand slightly. I think I calculated my system produces an expansion of about 250cc from 0 to 100c....
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I think on the 4A, unlike the Vit, the heater isn't the highest point so if coolant level is a bit below the cap it's no problem while on the Vit your heater stops working😩
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Hmmm sounds like new rad should be on the shopping list and if the budget is tight I really recommend an ally chinese Honda Civic one even though it does require a bit of fettling. Also is your controller powered up all the time to allow the fan to run on?
