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The next engine woes
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- Jasonmpk
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- Joined: Thu Jun 11, 2020 3:50 pm
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Re: The next engine woes
A massive thank you to Matt who popped round this evening to sort the timing on my car, it appears that the car broke down after changing timing by about 90 degrees !!!!!
So it now runs very well again, I just need to sort a small water leak and paint a 'tell tale' line across the dizzy fixings just in case it moves again. The bike carbs also need a slight resetting across them to get a perfect purr from the engine for the first time i think
Once again,
THANKS MATT
Your a star
So it now runs very well again, I just need to sort a small water leak and paint a 'tell tale' line across the dizzy fixings just in case it moves again. The bike carbs also need a slight resetting across them to get a perfect purr from the engine for the first time i think
Once again,
THANKS MATT
Your a star
- DJ.
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Re: The next engine woes
Well done Matt
- locost220
- Posts: 4490
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Re: The next engine woes
Well done guys
Locost book chassis, Undergoing testing post rebuild
Robin Hood 2B, keeping me sane
Sylva Leader, stuck to the trailer
Robin Hood 2B, keeping me sane
Sylva Leader, stuck to the trailer
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Re: The next engine woes
Re the ignition, maybe a bit OT, but at every opportunity I’ll bang on about just how much of an improvement 3D mapped ignition is over clockwork. Back when we had a Xflow in the Westy, I had a spare Emerald ECU kicking about and decided to fit it to try and solve the perennial difficult-to-crank issue due to the 11:1 CR and 10 degrees static timing advance.
Good grief, what an improvement. It sorted the cranking/starting issue of course, as I set cranking timing to 5 degrees, but the unexpected and massive improvement in driveability throughout the range was a revelation. Given the engine had been properly set up when it got new 40s and had the carbs jetted and the dizzy re-curved I’d assumed up until that point that it couldn’t be improved on. The big hole up to about 3k rpm that I had always accepted was ‘a feature’ went away, better mpg, easy starting, more responsive everywhere.
A project to consider perhaps, fit 3D mapped ignition! You won’t regret it.
Good grief, what an improvement. It sorted the cranking/starting issue of course, as I set cranking timing to 5 degrees, but the unexpected and massive improvement in driveability throughout the range was a revelation. Given the engine had been properly set up when it got new 40s and had the carbs jetted and the dizzy re-curved I’d assumed up until that point that it couldn’t be improved on. The big hole up to about 3k rpm that I had always accepted was ‘a feature’ went away, better mpg, easy starting, more responsive everywhere.
A project to consider perhaps, fit 3D mapped ignition! You won’t regret it.
- Jasonmpk
- Posts: 238
- Joined: Thu Jun 11, 2020 3:50 pm
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Re: The next engine woes
ChrisS wrote:Re the ignition, maybe a bit OT, but at every opportunity I’ll bang on about just how much of an improvement 3D mapped ignition is over clockwork. Back when we had a Xflow in the Westy, I had a spare Emerald ECU kicking about and decided to fit it to try and solve the perennial difficult-to-crank issue due to the 11:1 CR and 10 degrees static timing advance.
Good grief, what an improvement. It sorted the cranking/starting issue of course, as I set cranking timing to 5 degrees, but the unexpected and massive improvement in driveability throughout the range was a revelation. Given the engine had been properly set up when it got new 40s and had the carbs jetted and the dizzy re-curved I’d assumed up until that point that it couldn’t be improved on. The big hole up to about 3k rpm that I had always accepted was ‘a feature’ went away, better mpg, easy starting, more responsive everywhere.
A project to consider perhaps, fit 3D mapped ignition! You won’t regret it.
Interesting thoughts Chris, I'll definitely consider the comments If/when the struggle returns. It ran very well this Sunday so I think I'll leave it alone at the moment as I follow the rule, ' If it ain't broke, don't fix it'
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