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Go Back   Australian Ford Forums > Ford Australia Vehicles > Small and Mid Sized Cars > Laser and Telstar

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Old 03-03-2017, 07:51 PM   #1
romeshs1983
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Question Ford laser fuel consumption issue

Hi All,

Im new here on the forum and I recently bought a 1990 Laser KF, 1.3 SOHC. Not used to Carbs that much, But i assume fuel consumption should be better than what i am getting right now?
I get 5.8 Kilometers per liter. Checked the plugs, running Champions, looks in decent condition, but looks white. Which means its running lean. Not rich.. Isn't it? I've checked the air filter, looks quite clean. anything else i can check for? checked for a MAF sensor, doesn't have one so i assume carby engines dont need / use one? Car doesn't over heat or anything.. Moves quick enough, considering its a 1.3 liter.
Please advice guys... Thanks...

Also guys, Could someone post a picture of the carb setup under the air intake? ive been trying to figure it out as some of the vacuum lines are not plugged in. and im not sure where it goes as i couldn't find an image online. Please guys & Gals.. really need help/advice here...

Ian.
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Old 07-03-2017, 07:56 PM   #2
romeshs1983
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Default Re: Ford laser fuel consumption issue

No replies? :(
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Old 08-03-2017, 07:50 AM   #3
russellw
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Default Re: Ford laser fuel consumption issue

It's a little difficult to diagnose remotely. Are you sure that's 5.8 km/l? Thats's 17l/100 km which is more than hard driven GT-P!

To answer your other questions:

There is no MAF on the carb engine.
Check the ignition timing, points and distributor cap for wear.

I've got a WSM at home so will check over the weekend for an image of the vac lines.

Cheers
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Old 08-03-2017, 03:30 PM   #4
romeshs1983
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Default Re: Ford laser fuel consumption issue

Thanks for the reply Russ. Yes unfortunately i get 5.8KMPL. I used to drive an Automatic Mustang GT 4.6 when i was living in the land of Camels and i used to get 7 kmpl most of the time. Horrible MPG right now on the Laser.
The fuel Filter was completely blocked and i changed it 2 days ago. Will have to check mileage again, although i dont think the fuel filter makes that much of a difference. Air filter is getting changed this weekend even though its not to dirty. Plug gaps are at 1.0 MM, thought to reduce it to 0.90MM. Only thing i can think of which might be the issue are the vacuum lines. Doesn't appear right to me somehow.
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Old 08-03-2017, 03:36 PM   #5
romeshs1983
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Default Re: Ford laser fuel consumption issue

The one pointing with an arrow, concerns me more, as this seems connected to the 2nd butterfly valve which doesn't open.
The 2nd circle, is another vacuum line connected to the back of the carby, which is not connected to anything.

Also, the auto choke is stuck open, and the red cable from it is not plugged into anything, couldn't find anywhere to plug it into either. I think it should be plugged into the alternator? But no opening in the plugs at the alternator.
would have removed the choke and checked it, if i knew where to plug it after checking it.
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Old 13-03-2017, 09:21 AM   #6
russellw
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Default Re: Ford laser fuel consumption issue

Been through both my KC-KE and KF-KH manuals and they don't cover the 1.3L engine - indeed the brochures for the KF don't mention it either with the entry unit listed as the B6 1597 cc (1.6L) SOHC and the DOHC EFI version of the same engine.

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Old 21-03-2017, 05:25 PM   #7
romeshs1983
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Post Re: Ford laser fuel consumption issue

Got a few images, for carb and engine diagrams. hope its ok to share them here? These are not really in order, but they did help me sort out my issue.

AC Cutoff - http://imgcash.co/b8y7eU1

Air Bypass System - http://imgcash.co/htgumrD
Air Bypass System 1 - http://imgcash.co/dYF2RJ_
Air Bypass System 2 - http://imgcash.co/Rby_V2A

Carb 1 - http://imgcash.co/Cd0B9zS
Dashpot - http://imgcash.co/oZk5ylv
Deceleration System - http://imgcash.co/R7ll2cF
Distributor - http://imgcash.co/JkIV14V
Electrical - http://imgcash.co/ZfpFuO5
Emmision - http://imgcash.co/4Q4pR02

Engine Bay - http://imgcash.co/JFdHhFZ
Engine Bay 2 - http://imgcash.co/mMUoePs
Engine Bay 3 - http://imgcash.co/dp6kzzw
Engine Bay 4 - http://imgcash.co/0K3g8e1
Engine Bay 5 - http://imgcash.co/EgFHbPG
Engine Bay 6 - http://imgcash.co/WX7rbXE
Engine Bay 7 - http://imgcash.co/BpzFACJ
Engine Bay 8 - http://imgcash.co/S65UXau
Engine Bay 9 - http://imgcash.co/V55yOnX
Engine Bay 10 - http://imgcash.co/AyxuRR0

Fuel Economy - http://imgcash.co/x3HxG5H
Fuel System - http://imgcash.co/y22g1UF
Fuel System 1 - http://imgcash.co/6QFgx3l
Fuel System 2 - http://imgcash.co/pMqzPH0
Fuel System 3 - http://imgcash.co/8_VhUSR

Intake - http://imgcash.co/WAP2Wo3
Intake 1 - http://imgcash.co/Fcj_KPH
Intake 2 - http://imgcash.co/FTxvWTu
Intake 3 - http://imgcash.co/2OWZ64F

Plugs - http://imgcash.co/EV1Fwd6

Troubleshooting - http://imgcash.co/uA7lACE
Troubleshooting 1 - http://imgcash.co/FvH_Kol
Troubleshooting 2 - http://imgcash.co/uBFrHs5
Troubleshooting 3 - http://imgcash.co/sKq7G2T
Troubleshooting 4 - http://imgcash.co/Z9bYl8h
Troubleshooting 5 - http://imgcash.co/ZzC0iU9
Troubleshooting 6 - http://imgcash.co/qrbQ7V4
Troubleshooting 7 - http://imgcash.co/ZDOZuM1
Troubleshooting 8 - http://imgcash.co/RtKxdxV
Troubleshooting 9 - http://imgcash.co/euznXDc
Troubleshooting 10 - http://imgcash.co/BKxN6b1
Troubleshooting 11 - http://imgcash.co/ZB9XZz_
Troubleshooting 12 - http://imgcash.co/95G_jj0

Tune Up - http://imgcash.co/s8QkHbC
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Old 31-08-2017, 03:22 AM   #8
Mechan1k
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Default Re: Ford laser fuel consumption issue

Wow ... I'd say the 1.3 is a carry-over from an earlier model ..... and going on those numberplates ... not an Australian-spec Laser.
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