360 carby fuel supply

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SteveP
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Re: 360 carby fuel supply

Post by SteveP » 06 Jan 2020 11:57 am

Nicely done!
1989 - Volvo 360 GLT
1985 - Volvo 360 GLS
2008 - Volvo S60 SE Lux

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bogbasic
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Re: 360 carby fuel supply

Post by bogbasic » 18 Jan 2020 10:41 pm

I now have idling problems and the MACster suggested weighing the carburettor floats. Slight problem is that I'm not a drug-dealer so I don't have a precise weighing balance. However, remembering a bit of science, doesn't one ml of water weigh exactly one gram (?), so we'll do it with syringes instead, arf....

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Now, I make that about 17 grams. I knew that old rocket stick would come in handy one day.
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

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SteveP
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Re: 360 carby fuel supply

Post by SteveP » 19 Jan 2020 10:19 pm

One way of doing it! 17g sounds too heavy? It should be 7g I think?
1989 - Volvo 360 GLT
1985 - Volvo 360 GLS
2008 - Volvo S60 SE Lux

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bogbasic
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Re: 360 carby fuel supply

Post by bogbasic » 25 Jan 2020 08:23 pm

New float and top gasket fitted and seems to idle a bit better.

Image

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All supplied gratis c/o the macster (many thanks, MAC).
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

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bogbasic
Posts: 1463
Joined: 21 Nov 2004 10:12 pm
Location: New Malden, Surrey.
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Re: 360 carby fuel supply

Post by bogbasic » 15 Feb 2020 06:35 pm

Wokey, so the carb has been put back together and filled with petrol for restarting. All went great but I could not get it to idle well at all after much adjusting. A phone call to the MACster suggested that I _should_ be worried that the mixture adjustment screw had lost its rubber grommet (O-ring). Hence I tried the replace it with one of the two spares I have (right hand side below) but these are from older models of the carb and have different thread, so don't fit!! The rubber is probably too hard to remove the grommets safely, so the old ones were left alone.

A long search in the local spares shop came up with a suitable O-ring from a Fiesta XR2 / Orion carby service kit. This was judiciously fitted to my brass screw (on left) by the shopkeeper who boiled a kettle to soften the rubber with steam.

Image

If anyone wants a Fiesta/Orion carby service kit minus a grommet, just let me know *{^¿^}*

Image
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

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bogbasic
Posts: 1463
Joined: 21 Nov 2004 10:12 pm
Location: New Malden, Surrey.
Contact:

Re: 360 carby fuel supply

Post by bogbasic » 14 Mar 2020 07:18 pm

Duhhhh, should've adjusted the float height.

sm75 sm75

Real numpty here.

sm75 sm75

viewtopic.php?f=6&t=15141&p=190946&hili ... nt#p190946

sm75 sm75
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

User avatar
bogbasic
Posts: 1463
Joined: 21 Nov 2004 10:12 pm
Location: New Malden, Surrey.
Contact:

Re: 360 carby fuel supply

Post by bogbasic » 16 Mar 2020 09:47 pm

Adjusted the float height to 34mm (+/- not much) and it made no difference at all.

Image

sm75 sm75 sm16 sm16

Help needed! No idea what's wrong still. The rubber O-ring on the brass screw is a bit big which makes it difficult to adjust the CO.
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

User avatar
bogbasic
Posts: 1463
Joined: 21 Nov 2004 10:12 pm
Location: New Malden, Surrey.
Contact:

Re: 360 carby fuel supply

Post by bogbasic » 17 Mar 2020 08:41 pm

I realised that I should have followed the other tuning advice on the MAC-page so I set the screw tab-stop and the plastic nut adjustment. The car then seemed to idle more smoothly, but after adjusting the slow-running and the CO, it would not tick-over at less than 1100 rpm. After leaving it idling at this speed for a bit, the revs suddenly dropped and it stalled, at which point my little brass CO adjustment screw flew out. Now, its normally dead-easy to find, so I haven't taken any precautions to stop it flying out. However, this time, after half an hour of looking, I just decided that with temperatures dropping and trying to find a bit of brass in the failing light.... Armageddon outta here!!

sm69 sm69
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

User avatar
bogbasic
Posts: 1463
Joined: 21 Nov 2004 10:12 pm
Location: New Malden, Surrey.
Contact:

Re: 360 carby fuel supply

Post by bogbasic » 19 Mar 2020 09:59 pm

Yo! Found it under the steering rack on the plastic under-engine shield. Re-adjusted everything and had it running great but overdid it and lost everything, so back to a car that won't idle at all. Will try again soon.

sm75 sm75
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

User avatar
bogbasic
Posts: 1463
Joined: 21 Nov 2004 10:12 pm
Location: New Malden, Surrey.
Contact:

Re: 360 carby fuel supply

Post by bogbasic » 20 Mar 2020 09:17 pm

Had it running perfectly again today (900 rpm) but soon as I try to drive it, it stalls as soon as my foot comes off the accelerator pedal. Wonder if something mechanical is sticking.
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

User avatar
bogbasic
Posts: 1463
Joined: 21 Nov 2004 10:12 pm
Location: New Malden, Surrey.
Contact:

Re: 360 carby fuel supply

Post by bogbasic » 22 Mar 2020 02:26 am

The brass screw had blown-out again, but it was easy to find. The idling seems pretty-good today. Current thinking is that the rubber O-ring on it is too big to let it screw in properly so the plan is try one of the old ones, if it can be teased-off without breaking.

sm97 sm97
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

User avatar
bogbasic
Posts: 1463
Joined: 21 Nov 2004 10:12 pm
Location: New Malden, Surrey.
Contact:

Re: 360 carby fuel supply

Post by bogbasic » 23 Mar 2020 03:34 am

Well, tried to remove the brass screw and found it wouldn't come out and neither could I get the engine to do one of its blow-backs through the carb which usually pop the screw out. All a bit stuck on that one. Efforts to remove one of the old rubber O-rings from a spare pin also failed with the rubber breaking in 3 places. So its going to require a bit more fiddling before I can make progress.

Image
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

User avatar
bogbasic
Posts: 1463
Joined: 21 Nov 2004 10:12 pm
Location: New Malden, Surrey.
Contact:

Re: 360 carby fuel supply

Post by bogbasic » 24 Mar 2020 01:30 am

Well, try as I might I couldn't find any fine-tipped tweezers either at home or in the shops and with everything going a bit pandemic, none of this is going to get any easier. I could swear I had a spare set of watch-makers tweezers, but I must have left them at work when I was made redundant, arf! Anyhow, I managed to get to a stationer and found this (a fancy pair of compasses) which has potential, perhaps with a couple of sewing needles jammed-in somehow and locked-down with those screws. Should get good grip with it due to the centre-drive?

Image
1988 340 1.4 GL, 218k, 5 door (Grey Bess). Gone to CBA.
1991 340 1.7 GL, 64k, 5 door, petrol blue (Deep Blue).
1988 360 2.0 GLE, 140k, 5 door, ocean blue metallic (Blue Bess).
1989 340 1.7 GL, 108k, 3 door (Red Ness).
More info here!

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