Restoration of 128/4430
Re: Restoration of 128/4430
I've now managed to cover my first 1000 miles with the car and all must have been going too well because I broke down on the top of Saddleworth Moor this afternoon
After taking advantage of a good weather report it was decided to sneak off work and head for a nice pub lunch in the countryside. All was going well until the ignition cut out in the middle of nowhere on the journey home, luckily I managed to Coast to a stop in a small lay by and quickly diagnosed an ignition failure and with the help of my trusty multimeter packed in the boot to ward off any surprises from Mr Lucas I found that there was a bad connection from the ignition switch.
So with a bit of fiddling behind the dash I managed to get the car going again to hopefully get me back home where a more permanent repair could be made, I did have a further problem on the M60 nearer to home but as I now knew where to look we were soon home.
Overall it's good news sadly let down by one small connection as the car is running really well. I have kept the car almost standard with regards to cooling system, alternator and other common modifications and so far I am happy with the original systems but the one change I will be making over the winter will be to fit an electric fuel pump to prime the engine as once the engine is hot the fuel evaporation means that a lot of cranking is required to get fuel back to the carb.
I've got a busy time planned for the car over the coming weeks so let's hope for plenty more trouble free miles.
After taking advantage of a good weather report it was decided to sneak off work and head for a nice pub lunch in the countryside. All was going well until the ignition cut out in the middle of nowhere on the journey home, luckily I managed to Coast to a stop in a small lay by and quickly diagnosed an ignition failure and with the help of my trusty multimeter packed in the boot to ward off any surprises from Mr Lucas I found that there was a bad connection from the ignition switch.
So with a bit of fiddling behind the dash I managed to get the car going again to hopefully get me back home where a more permanent repair could be made, I did have a further problem on the M60 nearer to home but as I now knew where to look we were soon home.
Overall it's good news sadly let down by one small connection as the car is running really well. I have kept the car almost standard with regards to cooling system, alternator and other common modifications and so far I am happy with the original systems but the one change I will be making over the winter will be to fit an electric fuel pump to prime the engine as once the engine is hot the fuel evaporation means that a lot of cranking is required to get fuel back to the carb.
I've got a busy time planned for the car over the coming weeks so let's hope for plenty more trouble free miles.
Dave Pearce
Oily Rag Classics
Jensen FF 119/133
Jensen FF 119/182
Jensen Interceptor III 128/4430
Oily Rag Classics
Jensen FF 119/133
Jensen FF 119/182
Jensen Interceptor III 128/4430
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Re: Restoration of 128/4430
DaveDPP wrote: one change I will be making over the winter will be to fit an electric fuel pump to prime the engine as once the engine is hot the fuel evaporation means that a lot of cranking is required to get fuel back to the carb.
Many people have done this but In the hand book it say, 'The engine should crank 8 time before starting when hot', Before I had the fast starter fitted as the old one fell to bits, so no choice, this is how mine started, so if this is the case with yours, then leave alone
Only working half a day now.
http://www.jensensontour.co.uk
http://www.jensensontour.co.uk
Re: Restoration of 128/4430
What does 'crank 8 time' mean?
It doesn't mean 8 attempts to start, does it?
If so, that's just not acceptable.
It doesn't mean 8 attempts to start, does it?
If so, that's just not acceptable.
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Re: Restoration of 128/4430
OK.. 'Crank' means that the 'Engine turns over' meaning 8 revolutionsAH1951 wrote:What does 'crank 8 time' mean?
It doesn't mean 8 attempts to start, does it?
If so, that's just not acceptable.
Only working half a day now.
http://www.jensensontour.co.uk
http://www.jensensontour.co.uk
Re: Restoration of 128/4430
Well the problem turned out to be a poorly riveted terminal on the ignition switch which could be peened over when the switch was stripped down. I would advise anybody to carry out a full inspection and test of any new switch before fitting it as these parts seem to be very badly manufactured and I have had 2 other switches not work from new causing me extra work when putting the car back together. This last one nearly cost me a ride home in a recovery truck and it was scary coming home in rush hour traffic with an ignition problem as its very busy where I live and you have to constantly avoid accidents with other drivers so stalling the car would have been risky.
Colin thanks for the advise but I think I am cranking more than 8 times, if the engine is hot and been stood for an hour or so it cranks that long that everybody looks over thinking the car will not start and this much cranking cant be good for the starter motor. I have just fitted a thick carb base gasket and although this may improve things I don't think it will be the answer.
A fast wind starter may be a big help though and not require any modifications like an electric fuel pump, does anybody know how much faster they crank than a standard starter.
Colin thanks for the advise but I think I am cranking more than 8 times, if the engine is hot and been stood for an hour or so it cranks that long that everybody looks over thinking the car will not start and this much cranking cant be good for the starter motor. I have just fitted a thick carb base gasket and although this may improve things I don't think it will be the answer.
A fast wind starter may be a big help though and not require any modifications like an electric fuel pump, does anybody know how much faster they crank than a standard starter.
Dave Pearce
Oily Rag Classics
Jensen FF 119/133
Jensen FF 119/182
Jensen Interceptor III 128/4430
Oily Rag Classics
Jensen FF 119/133
Jensen FF 119/182
Jensen Interceptor III 128/4430
- Chris_R
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Re: Restoration of 128/4430
Yeah, but you know it will and when it does, you can just smile.DPP wrote:if the engine is hot and been stood for an hour or so it cranks that long that everybody looks over thinking the car will not start
Probably doesn't much harmDPP wrote: this much cranking cant be good for the starter motor.
Chris
JOC Member 6116
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JOC Member 6116
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- Trevithick
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- Location: Wild West Cornwall
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Re: Restoration of 128/4430
I've had to crimp the fuse box rivets a bit harder due to poor quality modern manufacture.
As for cranking I suspect the book advice is to do with oil circulation and the position of the oil filter (drain back etc), with an oil cooler fitted there is still enough primed in the system for the pressure to raise on the first revolution. Mine has an electric pump and it is the best starting Jensen I've ever owned, hot or cold. Unfortunately the SP has 3 carbs worth of fuel to evaporate
As for cranking I suspect the book advice is to do with oil circulation and the position of the oil filter (drain back etc), with an oil cooler fitted there is still enough primed in the system for the pressure to raise on the first revolution. Mine has an electric pump and it is the best starting Jensen I've ever owned, hot or cold. Unfortunately the SP has 3 carbs worth of fuel to evaporate
SP 131/4980.
Back soon.
Back soon.
Re: Restoration of 128/4430
The car has been running great since its ignition switch problem and I have managed to get out and about in it as often as possible with 2500 miles on the rebuilt car.
We had a great weekend through some lovely deserted roads in Cumbria after booking a last minute break.
We had a great weekend through some lovely deserted roads in Cumbria after booking a last minute break.
Dave Pearce
Oily Rag Classics
Jensen FF 119/133
Jensen FF 119/182
Jensen Interceptor III 128/4430
Oily Rag Classics
Jensen FF 119/133
Jensen FF 119/182
Jensen Interceptor III 128/4430
- Trevithick
- Posts: 1963
- Joined: Thu Jun 09, 2011 6:47 pm
- Location: Wild West Cornwall
- Contact:
- Chris_R
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- Joined: Sun Feb 10, 2008 9:19 am
- Location: South West London
Re: Restoration of 128/4430
Surely that first picture is with the Ribblehead Viaduct and Whernside in the background? Is that in Cumbria?
Still very spectacular though, both the background and the foreground.
For steam train enthusiasts Ribblehead Station just before the viaduct is one of the best places to see steam engines working hard. The gradient is quite steep (for a train) and the engines have to really work hard to climb it.
Still very spectacular though, both the background and the foreground.
For steam train enthusiasts Ribblehead Station just before the viaduct is one of the best places to see steam engines working hard. The gradient is quite steep (for a train) and the engines have to really work hard to climb it.
Chris
JOC Member 6116
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JOC Member 6116
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Re: Restoration of 128/4430
You're right Chris the 1st photo was taken on the way up to Cumbria but was too good a shot to miss, I think I need some advice on camera angles from Trevithick thoughChris_R wrote:Surely that first picture is with the Ribblehead Viaduct and Whernside in the background? Is that in Cumbria?
Dave Pearce
Oily Rag Classics
Jensen FF 119/133
Jensen FF 119/182
Jensen Interceptor III 128/4430
Oily Rag Classics
Jensen FF 119/133
Jensen FF 119/182
Jensen Interceptor III 128/4430
- Trevithick
- Posts: 1963
- Joined: Thu Jun 09, 2011 6:47 pm
- Location: Wild West Cornwall
- Contact:
Re: Restoration of 128/4430
Show girl.
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SP 131/4980.
Back soon.
Back soon.
Re: Restoration of 128/4430
Great angle 'Trevithick' Keith will be so proud
Previous Jensen Owner 2010-2022 (128/4451)
Understeer - Hitting the fence with the front of the car
Oversteer - Hitting the fence with the rear of the car
Horsepower -How fast you hit the fence
Torque - How far you take the fence with you
Understeer - Hitting the fence with the front of the car
Oversteer - Hitting the fence with the rear of the car
Horsepower -How fast you hit the fence
Torque - How far you take the fence with you
Re: Restoration of 128/4430
Great shot Mark definatly your trademark angle I look forward to seeing the others.
I'm glad all the screws were lined up in true OCD sparkys style
I'm glad all the screws were lined up in true OCD sparkys style
Dave Pearce
Oily Rag Classics
Jensen FF 119/133
Jensen FF 119/182
Jensen Interceptor III 128/4430
Oily Rag Classics
Jensen FF 119/133
Jensen FF 119/182
Jensen Interceptor III 128/4430
Re: Restoration of 128/4430
DPP wrote: I'm glad all the screws were lined up in true OCD sparkys style
I think that should be CDO. That's the correct order