iana Posted May 1, 2021 Report Share Posted May 1, 2021 Its time to start to use the vitesse again, its been stood since lockdown last year, started very ocassionally but battery on trickle charge. Over the last few weeks Ive been tinkering but the car is an absolute pig to start. Once started it runs fine at tickover, but if left for a few hours it doesnt want to start. The starter spins quite slowly (checked its not a bad earth or the like with a jump lead to the earth post on battery) the fuel is getting to the carbs (after a few turns) the plugs are relatively new (from club shop). Once engine initially started the starter spins the engine and it starts fine. Im at a loss where to start - ideas and pointers please. (I have a feeling the valve timing maybe incorrect as it is set to 10 thou and in the box of invoices there is a receipt for a piper cam that states inlet 12 outlet 14 (Piper Cam)) I have been trying to find out what the symptoms of incorrectly set valves woud be. Link to comment Share on other sites More sharing options...
trigolf Posted May 1, 2021 Report Share Posted May 1, 2021 I wonder if your battery is dying and doesn't like the extra load when trying to crank over a cold engine with thick oil etc. Link to comment Share on other sites More sharing options...
JohnD Posted May 1, 2021 Report Share Posted May 1, 2021 A test with some KwikStart spray, aka 'Start ya Barstard' could show if fuelling is a problem. https://www.google.com/search?q=start+ya+bastard+video&oq=start+ya+v&aqs=chrome.2.69i57j0i10i22i30j0i22i30l2.6462j0j7&client=ms-android-vf-gb-revc&sourceid=chrome-mobile&ie=UTF-8#fpstate=ive&vld=cid:c4a1cdbc,vid:PGMUGjlV5HU,st:0 Many cars drain back the fuel on standing, and take some time for the mechanical pump to bring it back to the carbs. If you get even a quick firing with spray, that conforms that fuel is taking time to get to the carbs. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted May 1, 2021 Report Share Posted May 1, 2021 1 hour ago, iana said: if left for a few hours it doesnt want to start. The starter spins quite slowly That sort of thing always points me to a fuel pump that's allowing fuel to drain back. If there's a priming lever under the pump try that for a good few pumps before cranking the starter; dont forget the starter has to do this by itself when cranking the engine so if the battery is in any way weak, as Gav says, it's not getting the fuel up to the carbs. Charge the battery or try a new one. LOL John just beat me to it! Link to comment Share on other sites More sharing options...
Mathew Posted May 1, 2021 Report Share Posted May 1, 2021 (edited) Assume nothing! Sluggish starter, check battery voltage off charge, then an hour after, a dropping voltage could indicate a poor battery. Full lights on, then try and start, if worse then battery. Edited May 2, 2021 by Mathew I am now a believer in evaporation and not drain back as previously though. Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 1, 2021 Report Share Posted May 1, 2021 its sounds more like battery or starter field winding has failed ,so a cold engine itdoesnt have the toqure to fire it up Pete Link to comment Share on other sites More sharing options...
Paul H Posted May 1, 2021 Report Share Posted May 1, 2021 If budget allows upgrade to a Hi Torque Starter . Worked for me for my Vitesse and the difference was very noticeable and never looked back . Available from the Club Shop Paul Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 1, 2021 Report Share Posted May 1, 2021 some hate them but its the best thing I put on my Vit6 they are far more furious even with a poor battery Pete Link to comment Share on other sites More sharing options...
iana Posted May 1, 2021 Author Report Share Posted May 1, 2021 Thanks a few things to work on over the next few days, can i fit a non return valve just after the fuel pump to stop the drain back? Ill get the battery tested, its a bosch and about 3 years old (fitted by previous owner). if its a bit suspect Ill source a new battery. Whats the downside to the hi torque starter apart from cost Link to comment Share on other sites More sharing options...
Paul H Posted May 1, 2021 Report Share Posted May 1, 2021 7 minutes ago, iana said: Thanks a few things to work on over the next few days, can i fit a non return valve just after the fuel pump to stop the drain back? Ill get the battery tested, its a bosch and about 3 years old (fitted by previous owner). if its a bit suspect Ill source a new battery. Whats the downside to the hi torque starter apart from cost I don’t know any downsides apart from originality . Upgrades which improve reliability are ok in my book . I still have the bendix starter and will keep it . Paul Link to comment Share on other sites More sharing options...
Andrew Posted May 1, 2021 Report Share Posted May 1, 2021 Another positive vote regarding a hi torque starter motor. Bought mine from club shop and the starting performance is beyond believe how good it is. Link to comment Share on other sites More sharing options...
Nick Jones Posted May 1, 2021 Report Share Posted May 1, 2021 4 hours ago, Mathew said: Fuel does drain back, usually over days. How? It can’t flow uphill and it can’t siphon out of a vented float chamber? Also, with a Vitesse (or Spitty or big saloon), the tank position means that even with even half a tank, the fuel level in the tank isn’t much below the carbs anyway.... The fuel in the float chamber may go stale/evaporate in days/weeks, but I don’t believe it drains back. My money on a duff starter or weak battery pulling the voltage at the coil down and causing a weak spark. Nick Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 2, 2021 Report Share Posted May 2, 2021 I dont believe in drain back whilst the vitesse fuel feed does come from the top of the tank so the dip tube could start some syphon , it has to overcome the pump valves to do that ,and if floats are full when you stop the float needle seals any air ingress from the float side , evaporation is the key and if youre worried about fueling then with luck you have a pump you can hand prime a couple of strokes to refill the floats but do get the cam on its back or the hand prime wont do much as the cam holds the diaphragm fully down. Hi Torque ...you get the feeling it would whiz over on a torch battery the crank speed and lower current is the best you can get if you have a tubular exhaust manifold it can get a bit tight and hot on a 6 cyl. a cheaper option for better is a pre engaged motor as the pinion is supported and only fires up when engaged they use pretty similar current as the bendix but more efficient as less gnashing of teeth Pete Link to comment Share on other sites More sharing options...
mark powell Posted May 2, 2021 Report Share Posted May 2, 2021 A new starter motor cured the same problem on my Herald pick-up, aka The Heep. Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 2, 2021 Report Share Posted May 2, 2021 a starter with a failed field coil gives a slow start crank and sort of builds a bit as you crank very similar to a poor battery state as in better when its hot than when its cold Pete Link to comment Share on other sites More sharing options...
Peter Truman Posted May 2, 2021 Report Share Posted May 2, 2021 I converted my Mk2 Vitesse using the Teglerizer (Isuzu Trooper) method with an Oz Isuzu Rodeo HT Starter picked up new for under $150 vs over $400 for a bespoke Vitesse supplied one. Haven't done the daughters Spitfire as I think things might be a little tighter ie passengers side starter has to be mounted through 180 degrees. The Vitesse location is easier and easily cleared the steering column, but I had to machine down the alloy spacer fortunately I have access to a machine shop (that's why I've got 7 stitch's in the back of my right hand at the moment, Blonde Moment!!) . 1 Link to comment Share on other sites More sharing options...
Colin Lindsay Posted May 2, 2021 Report Share Posted May 2, 2021 1 hour ago, Pete Lewis said: I dont believe in drain back Obviously Triumph did or they wouldn't have included a priming lever on the pump... why would you need to prime fuel if it's always there? If you park a hot engine then the fuel will be warmed and will evaporate from the float chambers and even pipes, so call it evaporation or drain back through poor valves in the pump it still needs to be overcome before the carbs get fuel. In most of our cars the carb is higher than the tank so unless the fuel level is very full in the tank the both ends of the system will settle to a common level; usually prevented by pump valves but if they're weak then fuel does indeed drain back. Link to comment Share on other sites More sharing options...
Chris A Posted May 2, 2021 Report Share Posted May 2, 2021 I don't mind the fact that petrol evaporates/drains back as it allows the engine to spin over and pump oil before firing up, reducing the infamous 'death rattle'. Not using the choke initially so the engine doesn't fire up also helps eliminate the death rattle. Link to comment Share on other sites More sharing options...
Steve P Posted May 2, 2021 Report Share Posted May 2, 2021 Fuel can`t drain back IF the lines are 100% airtight,which i doubt any 50 year old Triumph are,even with modernish rubber lines,mine degraded after a short time and let air in causing delays in firing up and loss of power.I found a 3 inch pipe under the car joining 2 copper lines was the problem. Steve Link to comment Share on other sites More sharing options...
PeteH Posted May 2, 2021 Report Share Posted May 2, 2021 14 minutes ago, Steve P said: I found a 3 inch pipe under the car joining 2 copper lines was the problem. Yes, I had doubts about that, so as I had the body off. I ran the new copper pipe full length. Pete Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 2, 2021 Report Share Posted May 2, 2021 biggest culprit on H and V is the short hose on the top of the tank,reserve lever /dip tube hidden up in the boot it goes hard and sucks air , but being above fuel level rarely shows as any leak Pete Link to comment Share on other sites More sharing options...
iana Posted May 2, 2021 Author Report Share Posted May 2, 2021 Is there a simple way to test a starter motor, I can get the battery tested on Tuesday. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted May 2, 2021 Report Share Posted May 2, 2021 Attach a well-charged battery via heavy duty cables to the positive terminal then earth the other lead to the starter motor casing; that will spin it. Be prepared for a lot of sparks but you'll know then if it's poor cables that are the problem. I tested two earlier in the week, both off the car, but they jumped about the floor under the force of the spin, so seem to be okay. Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 2, 2021 Report Share Posted May 2, 2021 well we had a heavy machine actually called Octopus which by means of a disc brake . load cell and voltmeter/ ammeter etc you could check the stalling load on a starter , just spinning it up loose is as Colin found a bit dangerous and dosent prove the ability to apply sufficient torque as with any starter problems its best to start with all the earths and battery posts, for clean contact wont be the first to only use the choke and speedo cables which can get really hot most battery retailers can do a comprehensive test on the battery its not just a drop test these days ( but some may be programmed to always sell you one ) a bench test of a loose motor wont prove any more than you already know its does turn ..just not enough a new starter is probably cheaper than a new battery ...trouble is both need to be up for the job Pete Link to comment Share on other sites More sharing options...
iana Posted May 6, 2021 Author Report Share Posted May 6, 2021 Given the starting issues and this months club shop offer I have just ordered a hi torque starter. I’m hoping this fixes the issue and will report back once fitted. Link to comment Share on other sites More sharing options...
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