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200 Series General Forum for the Volvo 240 and 260 cars |
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1988 240 2.3 GLT Auto with LPG / Pinking issues?Views : 613 Replies : 8Users Viewing This Thread : |
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Apr 12th, 2015, 15:55 | #1 |
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1988 240 2.3 GLT Auto with LPG / Pinking issues?
Hi guys,
Ive bought back my old 240 with firm intentions of actually keeping her as a daily (marriage dependant!!) The cars had 2 owners since I last had her 4/5 months back, its in slightly worse nic externally than before, slightly better internally... Front seats have vanished into boot, and a set of identical color alfa sport seats have taken their place... very soft and comfy. As far as I can see the a partial service has been carried out, guys ratchet broke after changing 1st spark plug so 3 more to do. But last owner reports its pinking which i dont remember it doing before... Was always sluggish up hills under load, but i expected nothing different.. What could be causing this? The LPG Was overhauled but ive no idea the make or model, i know it wont run on gas at idle, drives fine otherwise on gas during a journey, shudders a bit on the changeover. Ideas guys.... and as always Pleasure being back in volvoland!! |
Apr 12th, 2015, 16:34 | #2 |
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Could you put some photos up showing the LPG system and I should be able to work out what you have there.
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Apr 12th, 2015, 16:50 | #3 |
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Apr 12th, 2015, 17:19 | #4 |
Trader Volvo in my veins
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Vapouriser is the OMVL R90e - I notice it has a vacuum connection on the front of it. Where does that small bore pipe go to?
The solenoid is Lovato It does sound like it needs the mixture settings adjusting. For idle there are two screws on the side of the vapouriser, one is a bleed valve and the other is idle control. The idle control one normally has a spring on it. If stalling at idle that suggests lean so opening the idle screw a bit should help. |
Apr 12th, 2015, 17:21 | #5 |
Trader Volvo in my veins
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But I would suggest doing all the ignotion before adjusting the fuel miture
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Apr 12th, 2015, 19:12 | #6 |
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Update 1
Ive check round the bay looking for wear and tear items to replace..
The rotor arm and cap are stinking... I filed down the contacts and its improved the responsiveness. The noise the last owner was describing ive realised is the same noise thats been with the car since I 1st got her few years back. Under acceleration at any speed, theres a reciprocating metallic noise. Dont think its Pinking/Pinging as I last remember a moggy doing it years back was quite loud and obvious... What could be vibrating under accelation in the bay |
Apr 12th, 2015, 20:37 | #7 |
Trader Volvo in my veins
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Is there more play in the distributor than you would suspect?
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Apr 13th, 2015, 10:05 | #8 |
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Play
Please define that not quite following, What do I look for and where!
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Apr 13th, 2015, 11:39 | #9 | |
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Quote:
That's a shrewd question imo. Is something mechanical disconnected, not fully connected, or broken? Look and search? For example, on my engine there is strut supporting the inlet manifold, re-fitting the screw is easily overlooked on re-assembling. The noise was gentle but I went looking for it. These mechanical things can be hard to trace. |
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