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Mini 1275GT very sick
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Mini 1275GT very sick
Hi folks, I'm new to this game so be patient with me. Have a 1980 GT, original Dublin car. Was running fine last summer but then laid up for a few months. When I fired it up recently it was only running on 2 cylinders. Have changed plugs,dizzy, rotor arm and leads. No joy. Then replaced head gasket...and now it runs on the OTHER TWO cylinders. Compression seems fine, (was rebored at some stage to plus 20's, no discernable air leaks. Pulling my hair out at this stage. Any mechanical gurus out there with advice.
Mke H.
Mke H.
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1984 Mini Sprite - Modifications: 1380cc
Weber45
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- The Marcos Graveyard
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- Whats your location?: Longford
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1984 Mini Sprite - Modifications: 1380cc
Weber45
S/C CR gearbox and drop gears - Location: Longford
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If it was fuel I would have thought that it would affect all cylinders ??? Haven't done compression test yet...just borrowed a gauge, so hope to spend a day working on it in the next week or two. While I had the head off, I filled the bores with a light oil and left it for a few days. Level remained the same, so kidda ruled out sticking rings.
- The Marcos Graveyard
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- Whats your location?: Longford
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1984 Mini Sprite - Modifications: 1380cc
Weber45
S/C CR gearbox and drop gears - Location: Longford
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- Merlin
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- What Minis have you?: Mk1 Austin Mini,Mk3 Layland Mini,72Van,81 Clubman Estate, 87 Race carand a 2000 Rover Cooper.
- Modifications: Mk1: 998 with flat top slipper pistons, 286 cam, 12G940 head 11:1 compression twin inch and a half SU's 5 speed gearbox. Mk3 998 automatic no mods, 72Van is a pile of rust, , Racer is being built but has the works and the 2000 rover cooper needs an engine again :(
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ok tigert100p, as the lads said it is a simple diagnoisis if you have a spark on the two cylinders that are not firing then its fuel or compression.
if you have compression then its fuel and if the engine is running on two cylinders its not the carb it has to be an inlet valve or a blocked inlet port after that your car has invented a new way to elimnate the fire triangle you should get on to the fire deparment and the patent office.
so do a compression test and get back to us.
Regards,
Good Look
Paul.
if you have compression then its fuel and if the engine is running on two cylinders its not the carb it has to be an inlet valve or a blocked inlet port after that your car has invented a new way to elimnate the fire triangle you should get on to the fire deparment and the patent office.
so do a compression test and get back to us.
Regards,
Good Look
Paul.
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HAVE YOU CHECKED THAT THE POINTS ARE OPENING AT EACH LOBE OF THE DISTRIBUTOR CAM, IE THAT THE SHAFT IS NOT BENT.
ALSO ARE YOU CERTAIN THAT SOME HUMOURIST HAS NOT SWAPPED THE PLUG LEADS.
I MISSED WHETHER THE CAR HAS TWIN CARBS, IF SO WHEN IT IS RUNNING IS THE EXHAUST ON THE MISSING CLYINDER GETTING HOT OR IS IT STONE COLD
HOPE YOU ARE SUCCESSFUL
MINI HA HA
ALSO ARE YOU CERTAIN THAT SOME HUMOURIST HAS NOT SWAPPED THE PLUG LEADS.
I MISSED WHETHER THE CAR HAS TWIN CARBS, IF SO WHEN IT IS RUNNING IS THE EXHAUST ON THE MISSING CLYINDER GETTING HOT OR IS IT STONE COLD
HOPE YOU ARE SUCCESSFUL
MINI HA HA
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- Billy
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I had a similar problem with a bent shaft on a distributor earlier in the year on an old Triumph I have. For some reason we couldn't get spark to one cylinder despite points, lead and plug changes. No matter how many times you gapped the points, it would never give the same gap twice. A new distributor (thanks to Ebay) sorted it!
Billy
Billy
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- Merlin
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- What Minis have you?: Mk1 Austin Mini,Mk3 Layland Mini,72Van,81 Clubman Estate, 87 Race carand a 2000 Rover Cooper.
- Modifications: Mk1: 998 with flat top slipper pistons, 286 cam, 12G940 head 11:1 compression twin inch and a half SU's 5 speed gearbox. Mk3 998 automatic no mods, 72Van is a pile of rust, , Racer is being built but has the works and the 2000 rover cooper needs an engine again :(
- Location: Dublin
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