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300/66 Series General Forum for the Volvo 340, 360 and 66 cars |
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340 1.4 rough ans slow idlingViews : 56892 Replies : 219Users Viewing This Thread : |
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Jul 9th, 2021, 02:31 | #111 | |
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Jul 9th, 2021, 10:30 | #112 |
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no harm it trying it driving gently around as the ignition timing will not be optimised . I meant 30 years above not 3 !
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Jul 9th, 2021, 10:40 | #113 | |
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Also in the 7/9xx models, the Renix was fitted, if memory serves we didn't get it in the UK but they did stateside and gained a bad reputation for failing quickly hence Volvo reverting to the Bosch system.
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Jul 9th, 2021, 11:54 | #114 |
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I have (amazingly) found the Renix unit that I removed from a working 1.7 340 GLE. I ran the car for about 10 years. It was very dirty, cleaned it up a bit.
Strangely, it's marked with 360. Couple of pics. Removed from 1.7 by A60man, on Flickr Removed from 1.7- by A60man, on Flickr |
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Jul 9th, 2021, 11:59 | #115 |
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Jul 9th, 2021, 12:14 | #116 |
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Some people (especially those working in breakers yards) didn't ever know the difference between a 340 and a 360. I don't recall the 360 ever having the Renix system on it, with the oddly named B19 (1986cc) engine, it ran Hall-Effect triggered Bosch ignition with the dizzy mounted on the side of the block and its own vacuum capsule on the dizzy body. Can't remember what the later (86/87 on) B200 powered 360 had, if memory serves the dizzy was still block mounted as there wasn't room between the back of the cylinder head and bulkhead for the cam mounted dizzy so again, it would have been Hall-Effect.
Don't worry about the small capacitor, it's there to reduce interference from the coil.
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Jul 9th, 2021, 12:22 | #117 | |
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I wonder if that suppression capacitor has failed causing a problem. Should I disconnect it to see if that makes any difference, before changing the whole Renix unit? |
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Jul 9th, 2021, 12:56 | #118 | |
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Jul 9th, 2021, 13:58 | #119 |
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Radio interference suppression :-)
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Jul 9th, 2021, 13:59 | #120 | |
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Thank you. I removed the capacitor, no difference. Next I fitted the Renix unit from the 1.7 340, started the engine and I thought we had cracked it. Engine ran and ticked over nicely, then after a few min same old problem, rough and slow idle. Looked at the distributor cap (was new about 3 years ago) and it didn't look that good inside, so fitted a new one, again thought we had solved it as initially good tickover, then back to slow and rough tickover. When it changes from good tickover to rough, the exhaust issues a little black smoke that persists until revs are raised. I'm thinking the temp relation theory is quite likely. Perhaps tomorrow I'll look for my compression gauge. |
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