Self Tunning - Khyber G-10 (Plugs, valve clearance, spark gap etc)

[ahsanonline]

ok i am having a very weird problem in my khyber for some days.
the car is all fine in running and all. but in noon,the temperature and fuel needle strt to work stupidly,if car is running,the temp and fuel gauge needle will go to full mark,even though petrol is about less than half in tank and car isnt over heating either.
when this happen,i stop the car ,the needles come back to normal positions...i.e HALF MARK..again if i drive,same thing happens...and point to be noted that this happens only in noon,when its hot outside,in mornings and evenings,its all normal.. i tried to check wires and all wires are ok,no two wires touching each others or car body..where could the problem lie? recent addition regarding electronics in car is STAP but this problem was even before its installation...any suggestions? ? ?

Is the fuel sensor float okay?

[daniyalahmad]

I meant how long does it take to attain normal (needle to the middle) working temperature?

If I start the car, and leave the engine on idle state then it takes 7~8 minutes to reach the central mark.

Does it climb quickly to the middle?

If I start driving just after starting the engine, then it reaches the centre mark in 4~5 minutes.

If you pick up speed on the highway does the temp fall or stays there? Do you have the thermostat valve installed?

No, it remains in the centre position regardless of the speed factor, however with the AC switched on at highways, I have noticed that the temperature needle drops slightly from the middle mark.
Yes T-stat valve is installed and fan is on auto.

Also, how is the condition of radiator water? Does it seem to be dirty?

Nopes, its clean but has a orange colour due to the coolant.

When engine is running are there any bubbles coming from the water?

If I open the radiator cap, 5 mins after switching off the engine then I can see some small bubbles of water at the top.

Was the radiator cap (inner side) oily/milky or have any grime or deposits etc?

Nopes, no such issues.
Its inner side including the rubber seal were clean.

[cracked]

daniyal
i dont know.the fuel sensor seems to work alright in morning and evening...
plus if it was faulty,it should be messin with temp sensor,shouldnt it? today it again happened!

[daniyalahmad]

daniyal
i dont know.the fuel sensor seems to work alright in morning and evening...
plus if it was faulty,it should be messin with temp sensor,shouldnt it? today it again happened!

I think you wanted to reply to @ahsanonline!
BTW You are still using the GTi speedometer cluster?

[metalhead]

@cracked
In my opinion, the problem lies in instrument cluster or its power/ground connections in the connectors.

If i am not wrong both the fuel and temperature sensor work by varying its resistance. In former, a float changes the resistance just like in a potentiometer; and in latter the resistance varies with temperature. I don't know about the fuel gauge sensor but the temp. sensor has a single terminal which means its other terminal is grounded at the engine....Which means you should check the instrument cluster connectors. The power connection to the instruments may be loose or corroded which when gets heated may induce resistance or just breaks.

[Xplorer]

@cracked
This is either because of week grounding of instrument panel or something wrong with the electronic component highlighted in the diagram. From diagram it is clear that both gauges share +ve and -ve. Since both behaves abnormally, it means there is nothing wrong with either float or temp sensor. The problem lies only in +ve or -ve of the gauges. See diagram for help.

[cracked]

so does it means i have to take out the speedometer thing? and then i could check the condition??? i dont know nothin about terminologies you people used..haha so could you just show me the picture or something? or if not, use simplest language daniyal..yup using the same gti meter and the problem started to raise its head about 2 weeks before.. its not a dangerous thing to drive on right? i mean i keep driving now cuz i know both are showin wrong information...ill get to it ASAP..just tell me should i open up the speedo?? if yes,ill do it today!

[metalhead]

Just go to a speedometer electrician, and he may trace the problem out for you.

Problem could be;
1. Loose connector/contact
2. Weak solder/track on PCB on the back of meter (a soldering iron touch will solve the issue)
3. If there is any diode or something like it, may be its causing problem when gets warm)...

[cracked]

why cant i see all the posts of this thread !!!

[cowboy_779]

cn any one tell me from where can i get the fuel guage for khyber new one ....

[MoizIrfan]

How to identify if radiator fan is sucking air from the sides of shrouds not through it. should there be any gap between radiator and shrouds or it should be sealed with some rubber type material????

[smijaz]

@Cracked

Check this post by FAS133 in this thread regarding distributor (Ignitor+pickup coil) checkup

https://www.pakwheels.com/forums/performance-modification-tune-up-preventive-maintenance/137308-self-tunning-khyber-g-10-plugs-valve-clearance-spark-gap-etc-32#post2500814

[cracked]

thanks ijaz bhai..i dont think i can do it myself but ill take printouts to the mechanic so that things should be working according to the mannual

[smijaz]

thanks ijaz bhai..i dont think i can do it myself but ill take printouts to the mechanic so that things should be working according to the mannual

Before that , try reducing (adjusting) spark plugs gap to 0.8mm max, as per my guess, by now if not readjusted over the period of 1.5 years ,the spark gap would be more than 1mm which would cause such issue.

By doing this you might get rid of the problem conveniently without the risk of blowing the igniter and PUC.

[cracked]

i am using ngk platinum plugs,and yeah they have been over 1.5 years used,may be 2 years so do you think they might have lost their gap??

[cracked]

also the advance mechanism in dizzy is also not workin properly i think,when i move the rotor anti clockwise and hold the vacuum advance pipe with tongue,the rotor goes back when left from hand,meaning there might be leak or some other mal function in the dizzy advance setup..??

[smijaz]

i am using ngk platinum plugs,and yeah they have been over 1.5 years used,may be 2 years so do you think they might have lost their gap??

In ngk platinum plugs only the center electrode tip is of platinum but the ground electrode is standard and that is what goes away with time/running increasing the spark gap. I would recommend that you change them or upload clear pics of all the plugs tips so to enable me advise accordingly.

[cracked]

okay will check the plugs and also will get pictures for referense

[ahmad40]

Very nice thread..
I want to adjust the level of my headlights..the headlight is not focused on the road,one is going up and one is really down.Can anyone tell me where r the khyber headlight adjusting placed nd how to adjust them?
thanks in advance

[metalhead]

Very nice thread..
I want to adjust the level of my headlights..the headlight is not focused on the road,one is going up and one is really down.Can anyone tell me where r the khyber headlight adjusting placed nd how to adjust them?
thanks in advance

Its very easy. Park the car in front of a light colored wall about 10 feet away from it. The car should be leveled enough. The adjustment screws are at the back of the head-lights. Two on each one. On two inner corners. Top and below. Better to cover one light to adjust another. The adjustment may take 15 to 20 minutes, so better to start the engine when lights are on.

First you should check the left right adjustment of the beams. This can be done by rotating both the screws in same direction. By adjusting left-right, the adjustment screws will come to its mid point. So the problem of reaching screw threads to its end will be not faced.

Then you can adjust the up-down setting by rotating one screw in one direction and other in the other direction. Check for the direction of beam while rotating screws. If you are turning in wrong direction, reverse the direction of screw rotation.

NOTE: Adjust for LOW beam and then check HIGH beam. Usually if the bulbs are old and normal quality, the HIGH beam may not be adjusted properly. But if you are a good driver, you will drive on low beams and use the high beam for signalling only.