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PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars |
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Amazon B20 Engine bayViews : 734 Replies : 6Users Viewing This Thread : |
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Sep 14th, 2019, 10:06 | #1 |
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Amazon B20 Engine bay
I am looking for some detailed pictures of an Amazon B20 engine bay, I am interested as to where the ignition coil is located, also would anyone have a detailed diagram of the horn button wiring on the same car.
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Sep 15th, 2019, 14:46 | #2 |
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Here are some pictures of mine - B20, late model (1970), RHD. Also a copy of a page from the parts catalogue, but that shows the arrangement for a LHD car it seems.
The ignition coil lies horizontal, underneath the battery and brake booster mounting. It is mounted in a strap which is bolted to the fire wall (as shown in the parts catalogue - the small drawing on the right, second from the top - but then the other way round). Routing of the horn wire: from where it comes out of the steering box it runs up the front wall (on the right hand side of the radiator, behind the expansion bottle - not shown in the pic), then along the top of the radiator (together with some other wires) to the left hand side of the radiator, and from there down again and through an opening in the front wall, where it is connected to one of the terminals of the horn. The other horn terminal is connected to the fuse box (switched 12 volt). In other words, the one terminal of the horn carries 12 volt all the time, whenever the ignition switch is on. Actuating the horn switch completes the circuit to earth. |
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Sep 15th, 2019, 15:36 | #3 | |
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Sep 15th, 2019, 16:17 | #4 |
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Thanks for the useful information, I located the live for the coil but could not figure where it was mounted. I am wondering if there is a diagram for the horn button on the later cars, ie a diagram of how the horn button is assembled. With regards the coil, on the earlier cars and lhd the coil is mounted into the bulkhead, on the later rhd cars the mounting point is obstructed by the brake servo assembly
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Sep 16th, 2019, 00:02 | #5 |
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Sep 22nd, 2019, 20:16 | #6 |
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Here's mine. Very late model 1970, B20A, left hand drive. Apart from the different air filter, I reckon this is pretty original. You can see the coil up on the bulkhead in its special holder. Hope that helps.
Hugh.
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1970 Volvo Amazon 131 with a B20A and an M40. Last edited by Alf ista; Sep 22nd, 2019 at 20:19. Reason: pic! |
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Sep 23rd, 2019, 10:01 | #7 |
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B18 yes - B20 no
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