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200 Series General Forum for the Volvo 240 and 260 cars |
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Volvo 240 sputtering/wont accelerateViews : 2629 Replies : 17Users Viewing This Thread : |
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Mar 12th, 2017, 19:47 | #1 |
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Volvo 240 sputtering/wont accelerate
Hello guys, this is my first post here.
I have a 1987 Volvo 245 with a B230E engine, using the K-jetronic fuel injection system. The car is displaying the following symptoms:
These are the things I have done so far:
Does anyone know what the problem could be? My father is certain that the problem is not fuel related, but instead ignition related (he mentioned something about vaccum in the distributor). Any help would be much appreciated!! |
Mar 12th, 2017, 22:34 | #2 |
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Last Online: Dec 21st, 2017 02:18
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Had a similar problem many years ago on a 740 with B230E. Turned out to be a break in the sender lead from the Hall sensor in the distributor, so I would try that and the vacuum next.
I was thinking low fuel pressure but you seem to have that all checked out. Good luck! |
Mar 12th, 2017, 23:25 | #3 |
Trader Volvo in my veins
Last Online: Yesterday 23:23
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Location: Anglesey
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First would be to fit new injector seals
Reset the fuel mixture. Ignition is also possible, the hall sensor in the distributor can sometimes play up. Is the timing set correctly. Is the cam belt on correctly? |
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Mar 12th, 2017, 23:50 | #4 |
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Ignition timing is probably a bit off. Valve timing and belt are seemingly all right.
Will definitely check this hall sensor tomorrow. I will also try to get in touch local classic car workshop. The regular mechanics haven't touched a car this old in years, so their troubleshooting abilities are a bit rusty |
Mar 13th, 2017, 12:52 | #5 |
Spanner ex machina
Last Online: Sep 24th, 2020 17:43
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Sounds a bit like a vacuum leak in the intake.
I am not familiar with the K-Jet setup - is there a vacuum controlled ignition load sensor like there is on the carb setup? Perhaps this is faulty or has a leaking sensing pipe? It would affect the timing under load.
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1988 240DL B230K AKA: Moby |
Mar 13th, 2017, 23:15 | #6 |
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Okay, so I visited the mechanic today. He has all the equipment needed to test old cars. Here's what he said:
I did some testing on the road, and this is what i found out: - Car doesn't actually loose all its power - Engine shaking goes away if I really push the engine to higher rpms (so for example, in 4th gear, it will shake violently from 80 km/h to 100 km/h, but then it will continue accelerating to approx 140 km/h with very low power, but almost no vibrations/sputtering) - Lots of power in low rpms, huge flat spot in the middle, and very low power delivery in high rpms. Any idead how/what to test, regarding the vacuum system? I don't really know much about this system, and holding a source of butane/propane close to and around the intake didn't really reveal anything. |
Mar 14th, 2017, 22:06 | #7 |
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This guy was right!!! I just held the bhutane source close to the injectors, and the idle rpms dropped like a rock. Didn't test this area first time. Also, I really punished the car on the motorway today, and all of a sudden, the water temp was way high (needle almost touching the red area). As far as I know, this is a sign of a lean condition. I think i found the problem
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Mar 15th, 2017, 11:42 | #8 |
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classic swede is one of those forum members who usually are right.
I know nufnck about K jet, and even less about LH which my car has. But from reading the forum, as soon as I hear worries about K jet running problems I think, injector seals. If that is not the problem, look next for loose or damaged tubing. I think K jet has a reputation as a reliable system? |
Mar 15th, 2017, 12:47 | #9 |
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Last Online: May 29th, 2017 21:55
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Yup, true. It's used in a lot of different cars. Also fairly good for tuning, as far as I know. Very simple system with very little electronics
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Tags |
fuel, ignition, loss of power, spark |
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