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Triumph Torque    Cars    Herald/Vitesse  ›  High torque or power lite starter motors
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High torque or power lite starter motors Print
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scotty71
April 9, 2017, 6:45pm Report to Moderator

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Hi Gents,

The car let its self down today, my starter motor is the standard type. When hot it struggle to get the engine started.
So the question is, which starter motor is a good one to get?
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glang
April 9, 2017, 6:59pm Report to Moderator

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Are you sure the problem is down to the starter motor? My Vitesse spins up fine when hot on a standard starter motor but doesnt like to start probably because of low cylinder compression and/or fuel vaporisation. Starter motors usually struggle most when the motors cold as the compression is higher, oil thicker and battery voltage low....
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Dannyb
April 9, 2017, 7:00pm Report to Moderator

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Standard engine only needs a standard starter. Unless the engine is modified fast cam high compression do you need high torque.
The high torque does put less load on the battery but then you have to pay the extra.


Danny Baker
Langdon Hills, Essex.
RBRR Finisher 2012  2014  2016
My first car in 1970 was a 1965 Spitfire4 with 8 port head stage 2 conversion
Now drive 1980 Spitfire 1500
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scotty71
April 9, 2017, 9:40pm Report to Moderator

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Fuel has been a problem in the past. But I have made a cover, doses work. So fuel is not the problem.
But I do need to bump it if it very hot day like today. This is why I asked about the starter motor.
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Richard B
April 9, 2017, 10:24pm Report to Moderator

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4-pot or 6-pot?

If a 6-pot I can see the advantage of a hi-torque. Do make sure all your battery cables are good (power and earth inc the starter one). See if any are hot to the touch after trying to crank.

I've fitted them to all the PI's and the Stag. definitely makes starting easier.


Surrey AO and Triumph Hoover, Location: Guildford - Surrey,
Spitfire 2.5PI - 1967 having surgery, PI Saloon - 1969 RBRR x 3, PI Estate - 1969 (to restore), Stag - 1971 RBRR x 2,
PI Saloon MkII - 1971(stalled project), Sold some cars!  

Daughters own: Herald 1500 1961, Herald 1500 Coupe 1962, Dolomite 1300 1976, Herald 13/60 Estate 1970
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nang
April 10, 2017, 3:59am Report to Moderator

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I don't know, I've always had Joe Lucas's starter motors on all my sixes. No problems, they always turn over quickly for me. I they don't, remember how old they are and get them overhauled. Much cheaper than a modern Japo one.
Tony.


If all else fails-Read the Instructions! ��Wairoa
New Zealand

1976 2500TC (converted to S spec) owned since 1998.

1999 BMW 2800 cc Z3 Convertible.
 
2003 BMW 525i Touring.
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rustbuckit2011
April 10, 2017, 7:23am Report to Moderator


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If you decide you are in the market for a high torque starter- do look out for a standard isuzu trooper 2.6 (or equivalent), 9 tooth one. The oe triumph spacer plate will need about a 1/4 inch milled off it (do measure first- don't take my word for it) and it will fit right up with a couple of basic wiring mods.
I believe that is the motor they use on the high torque starter kits they sell. Should save you a couple of hundred if you get a good price.
I did it years ago as I had a bad run with the lucas ones and got a bit fed up. A second hand isuzu starter didn't cost much from the wreckers and I just cant see it ever failing. It's powerful enough to move the car about



1960 Herald Coupe Replica - mazda, datsun, and all over the garage floor
1964 Herald 1200 coupe - standard.

https://www.facebook.com/rust.buckit.94
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bxbodger
April 10, 2017, 9:10am Report to Moderator

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if ye olde Lucas is playing up, check the cables, if that's not the problem then a new set of brushes and a clean up of the Bendix normally sorts it. Failing that they're only about thirty or so quid exchange from any decent local spares shop. There's no need to go to the expense of a geared starter, you're not trying to turn over a cold diesel in the middle of winter.


'68 Mk1 Vitesse convertible boneshaker, and a somewhat more economical '89 998cc A series powered Metro.
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scotty71
April 10, 2017, 11:51am Report to Moderator

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13/60 so only a 4 pot. it is a rebuilt Lucas unit, which I has only done about 400miles. so it could be the brushes are soft, and loosing power that way.  I do have electronic ignition, could be pulling the voltage down on cranking.
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glang
April 10, 2017, 12:46pm Report to Moderator

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What is the problem exactly?
Spins over normal when cold and then slower when hot,
Spins over slow all the time but doesnt fire up when hot,
Spins over normal all the time but doesnt fire up when hot,
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bxbodger
April 10, 2017, 12:50pm Report to Moderator

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Try it with an extra earth- use a jump lead directly from one of the starter mounting bolts to the battery earth terminal. You could also try starting it by bypassing the solenoid and just using a jump lead connected to the battery positive, and touch the starter terminal with the other end. Watch out for sparks! Either test will show if there's issues with the wiring, but buying a geared starter is not the solution.


'68 Mk1 Vitesse convertible boneshaker, and a somewhat more economical '89 998cc A series powered Metro.
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scotty71
April 10, 2017, 4:54pm Report to Moderator

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when hot the starter motor seems a little slower. the car wants to fire, but it take a couple attempts to do so.
i did have a bit muck on the dizzy. but i had cleaned it off, and the time it took to start it was about the same.
it just needs to be a bit quicker on cranking over.
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glang
April 10, 2017, 6:45pm Report to Moderator

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Strange cos it should spin faster when hot for the reasons listed previously. I cant think of any electrical problem which will cause the starter to turn slower only when hot so still think you should work through other possibilities (cylinder compression, tappet clearances, carb function and all of the LT/HT ignition system)
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Bitumen Boy
April 10, 2017, 7:13pm Report to Moderator
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I have a vague memory of a car that had a similar problem, it turned out to be a bad electrical connection in, I think, the starter itself, though I'm really not sure now. Check all your earthing straps - not just visually, have them off and fiddle a bit - and if you have no luck there take the starter off. Open it up if you're confident with these things or have it overhauled if not. There's definitely a fault somewhere and finding and curing it will cost you a lot less than a fancy new starter.
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Mark Hammond
April 10, 2017, 9:56pm Report to Moderator

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Broken/damaged engine earth strap?

M.


Herald 1200 Saloon, owned (in the family) from new, Royal Blue/Black trim
[color=purple]MX-5 Z-Sport (Tweaked to 200bhp)2007,
Suzuki Vitara S Auto, Cosmic Black, 2017.
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