Hot Start problem
Discussion
Hello everybody and tvr's fans !
I got a problem with my T350 : it doesn't fire up when the engine is hot, knowing that the starter is a new one.
I have to wait nearly one hour to start it again.
I read several threads that are saying :
- "temperature protection" of the starter (what is it ? where to find it ?)
- Big fuse problem (I changed it less than on year ago)
- Coils
So it will help me a lot to get your opinions in order for me to solve this problem quite easily and fast !
Many thanks in advance,
Jerôme
I got a problem with my T350 : it doesn't fire up when the engine is hot, knowing that the starter is a new one.
I have to wait nearly one hour to start it again.
I read several threads that are saying :
- "temperature protection" of the starter (what is it ? where to find it ?)
- Big fuse problem (I changed it less than on year ago)
- Coils
So it will help me a lot to get your opinions in order for me to solve this problem quite easily and fast !
Many thanks in advance,
Jerôme
Thanks for all your replies
in fact, as you say, when cold, the new starter is a riot gun : less than two seconds, ant the engine fires up.
But when it's hot (engine hot), it looks like the starter is old, without strength, hesitating to turn and to launch itself, needing to get "fresh air"...
I was thinking about two points on my side :
- coil maybe tired (20 years old)
- a temperature sender (air, fuel ?)
That's why i ask the forum as I'm quite sure that this problem was existing before my experience
in fact, as you say, when cold, the new starter is a riot gun : less than two seconds, ant the engine fires up.
But when it's hot (engine hot), it looks like the starter is old, without strength, hesitating to turn and to launch itself, needing to get "fresh air"...
I was thinking about two points on my side :
- coil maybe tired (20 years old)
- a temperature sender (air, fuel ?)
That's why i ask the forum as I'm quite sure that this problem was existing before my experience
sixor8 said:
What alarm and / or immobiliser system is fitted? This problem is extremely well know on Chimaera and Griffs with the Meta system being wired in incorrectly by TVR.
I think it's the same on later cars with the immobiliser circuits being the wrong way round, load vs rating.nawarne said:
Hi Jerome,
Check 'easy' things first! - Battery - earths
If starter is fairly new then my prime culprit is the heavy gauge wire from the battery to the starter/100A fuse holder.
They degrade over time in the engine bay heat.
Nick
This. If the starter turns over fine when cold but too slowly when hot, then first checks are the power supply / wiring cables and connections. The fuel pumps and coil may well be defective AS WELL but they wouldn't make the starter turn slowly.Check 'easy' things first! - Battery - earths
If starter is fairly new then my prime culprit is the heavy gauge wire from the battery to the starter/100A fuse holder.
They degrade over time in the engine bay heat.
Nick
TVR undersized their starter and battery cables on all their cars. On the T cars they made a special effort to wire it up badly and run cables via all the hot spots. My Tamora had 16mm cables to the starter and the alternator. All were almost solid / really stiff when I changed them out last year. I fitted 25mm cables and made sure the new connectors were solidly done too. Relocated the alternator fuse (as well as swapping to a ceramic / midi type so you can reach it without having to take the airbox out at the same time.
Do the same for the earth cables too. No point only doing one side of the circuit.
jaydom said:
Great !
Thanks for all your answers.
I will check electric cables first (earth and power) and, if it's not the problem, il will check after all the coil.
Regards to all and everyone
Jerome
Could it be heat soak into the starter motor? Has this only started happening with the new motor, or was it there before? My T350 started badly when hot or cold with the original 1.4kW motor, but fitting a high power motor is the best improvement I have made to the car.Thanks for all your answers.
I will check electric cables first (earth and power) and, if it's not the problem, il will check after all the coil.
Regards to all and everyone
Jerome
As others have said, if the starter motor is not turning over there is no point looking at the coil.
nawarne said:
Hi Jerome,
Check 'easy' things first! - Battery - earths
If starter is fairly new then my prime culprit is the heavy gauge wire from the battery to the starter/100A fuse holder.
They degrade over time in the engine bay heat.
Nick
My money is in what Nick said, the battery to starter cable sounds very much like its breaking down, a cables resistance goes up when its hot too and copper adsorbs heat well. a visual inspection won't always show anything up but if the heat shroud around the cable is missing or torn in places that won't help. i would get a heavier duty cable made up and replace it to be sure, slide it in thermal sleeve to keep the heat away from the cable as much as possible, this also acts as an extra layer of protection against rubbing on the chassis too. Check 'easy' things first! - Battery - earths
If starter is fairly new then my prime culprit is the heavy gauge wire from the battery to the starter/100A fuse holder.
They degrade over time in the engine bay heat.
Nick
Another hint: I had hot start problems too, a long time back. At the time it was a faulty water temparature sensor. I know there are two, but my procedure was unplugging the one under the air filter box:
- Remove the air filter housing top to access to temperature sensor
- Unplug the sensor
- Start the engine
- Put everything back together
- Off you go...
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