glang
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Everything posted by glang
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Yes the dynamos are pretty bomb proof, the brushes seem to last for ages and of course the commutator even longer. However the front bearing might be the weakest spot especially if the belt is over tightened as it cant be lubed and is quite exposed to the elements...
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Hey glad it worked! Hopefully regular use will keep the contact clean but if the ignition light does come up again you'll know the first place to look👍
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I would like to see practically zero ohms so have you cleaned all dust etc off? If so give it a try and you should certainly get some output from the dynamo now🤞
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yes you could try just sliding paper between the contacts on maybe clean them with alcohol but as I say Ive had problems before and although you can adjust the contact pressure that might then change the voltage setting of the regulator😯
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If you put a bit of pressure on its lower contact plate to make better contact the reading should go to zero....
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there should one contact closed all the time (voltage control) and the other open all the time (cut out contact). The voltage control is the first and its the coil on the left when the terminals are facing you - its resistance reading should be zero...
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no when the contact is closed, as it should be all the time until theres too much voltage, the resistance will be zero but when it opens the reading wont go to infinity because of the resistor as you have measured. By hand you can try holding the contacts together better and I think the resistance reading of D to F will go to zero....
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This is the problem because current isnt getting to the field winding of the dynamo so it cant increase its output (the 65ohms is the resistor across the contact to reduce sparking). Here is the diagram and as you can see from D to F is a direct connection through contact 4 which should always be closed until the dynamo volts get too high. Im guessing that even though youve cleaned the contact it still has a high resistance and Ive struggled with this before because for some reason they refuse to stay clean. I wonder if they have a coating that wears off (the manual says cleaning them must be very gentle) with use and then the under metal oxidises easily so that the problem returns...
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Ok yes the same measurement is valid but you'll be measuring just the voltage control contact resistance as your regulator doesnt have a current control facility...
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I assume youve got the same RB340 regulator as fitted to the Vitesse (3 coils in a row inside the black case)? With the ignition off and wires D and F disconnected at the regulator measure resistance across these two terminals. You are measuring across the voltage and current control contacts both of which are closed so resistance should be zero. These contacts supply power from dynamo D to its field F the same as when you did the short test earlier so if not closed will result in insufficient dynamo output....
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It seems its for a very specific model and this comes up on Eurocarparts for a 1985 Sierra 1.6 as one of the two size options available. Now got to track down just the friction plate....
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- type9
- spitfire mk2 convertible
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Does look hopeful but I wonder how long it takes to get hold of☹️
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No chance the problem has already been fixed by the dynamo overhaul?
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A job worth doing!
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Good, yes I think the revs is an error so as long as the voltage came up quickly and was steady, its working. However have you still got a problem? If so its either the wiring or the regulator... Im using the Vitesse/GT6 manual (has a really good section on the generator and regulator) and think it must also be in the Herald one somewhere but there might be some differences....
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Heres the instructions from the Triumph manual: It also says the brushes should be replaced when under approximately 8mm in length so yours are good. Does the commutator and the coils all look in good condition, no over heating etc? The field winding resistance (connection F) to earth should be around 6 ohms....
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If in the short circuit test you mention your dynamo doesnt easily get to 16+v as you gradually increase the revs theres something wrong with it. The first port of call is its brushes especially because the ignition light coming on has got progressively worse as this is typical of the brushes being worn and their contact pressure getting less and less...
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This one for a mk2 1600 Sierra has 23 but the diameter is bigger so you would have check with Canley... 300 230 TOPRAN 300230001 Clutch Disc 215mm, Teeth Quant.: 23 300230001 ❱❱❱ price and experience (buycarparts.co.uk)
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The Triumph single rail gearbox has 20 splines so as Canleys say in the article above the Ford Sierra 1600 friction plate is needed to match the 23 splines of the type 9 box but clamped using a Spitfire 1500 flywheel and matching clutch cover. You'll have to get this friction plate from a Ford stockist as Canleys will no longer keep it as demand for this mod will now be very low....
- 28 replies
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- type9
- spitfire mk2 convertible
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Ah yes that makes a difference! Even so clutch plates can be rebuilt and with a custom item like yours that might be worth doing... However can you put up a picture of the thrust bearing because something is wrong and it might explain why the springs failed so early in the life of the plate?
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Yes I wonder if that clutch could even go again if the operation of the thrust bearing could be corrected? Alright as Clive says the friction plate has only got 4 out of 6 torque springs but I think it must have been custom made like that and maybe isnt a problem - it would certainly save a lot of expense and/or work if reusable....
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Wow standard 80% aspect 175 tyres would be large on diameter and put the speedo reading out by quite a lot! I think David has already got 175/70 on those 5.5J but is trying to decide what to use on the standard 4.5J where 175 would be too wide... The manual indicates both radials and crossplies for the Vitesse but doesnt specify if there was a changeover date? And yes the trims/hub caps in Davids post look correct and although reproductions would be very hard to distinguish....
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The original wheels would have been white but with only the edge exposed because they had a chrome trim around the periphery (different types depending on year and model) as well as a smooth chrome hub cap...
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Hi, same year and colour as mine although I have a saloon. I believe with the wheels you have to measure across its inner lip ie the two surfaces where the tyre seals not the actual full width. Also the sizes should be stamped on the wheel somewhere and the originals would be 4.5J. The correct tyre size is 155 80 x 13 as indicated in the Triumph workshop manual which is available for free download at vitessesteve.co.uk and is essential....
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J type O/D gearbox input shaft - acceptable play?
glang replied to sparky_spit's topic in Drivetrain
The good news is that its very easy to get access to inspect and even replace the input tip bearing. At the same time, if it has one, you can also replace the input oil seal - something which, along with the output seal, is always worth doing as a minimum before installing an unknown gearbox...
