Outer Limits 4x4 Board

i was driving down the road at 60kph last night and my engine just stopped.I have spark to all cylinders and the carby is in good condition and works well but it still wont fire.I have changed the distributor and cap and tested all leads so its left me thinking that the timing belt has jumped a few teeth does this sound possible? Any advice would be appreciated thankyou

fuel problem?
blocked exhaust ?
could be belt but it would still run ( not good but bad) thats if it were only like a tooth.. i thought from memory they were and interfearing engine (values can hit if belt breaks)

i would be checking if its getting fuel.

Its getting fuel i tried a little aerostart and put some fuel down the carby and still didnt fire

mine died friday night. turned out to ba a fuel filter full of rust. only a $3 filter but still annoying. but if yours wont fire at all even with aerostart it shouldnt be that.

It was a very sudden stop like i turned it off there was no spluttering at all thats why im thinking its not a fuel issue

put the crankshaft pulley on TDC and pull the dizzy cap off. If the rotor is not pointing toward no1 then your timing belt has skipped some teeth.

RockHopper wrote:put the crankshaft pulley on TDC and pull the dizzy cap off. If the rotor is not pointing toward no1 then your timing belt has skipped some teeth.

thats to much work

just pull the oil cap of get some one to crank it and look in the rocker cover to see if cam is moving if not moving you broke the belt and the head needs to come of to fix the valves that you may have bent

jimbo

would have thought if he is getting spark to all cylinders than the cam would be rotating. as far as i know 1.3's are a clearance head.

Doesnt the dizzy run off the camshaft because the dizzy rotates when i crank it so that would mean the belt hasnt snapped but if it jumped several teeth would that cause it to not fire

if it has jumped you may get some backfire. i'd be taking a closer look at the carby and or fuel sytem.

If it was the carby it should still fire with aerostart and the carby was rebuilt 3 months ago and has never given any trouble since

have you checked compression?

Also, can anyone confirm if the 1.3 is a clearance of interference head?

i havent put a compression gauge on it but turning it over by hand feels like it has good compression on all cylinders

jimbo jones wrote:

RockHopper wrote:put the crankshaft pulley on TDC and pull the dizzy cap off. If the rotor is not pointing toward no1 then your timing belt has skipped some teeth.

thats to much work

just pull the oil cap of get some one to crank it and look in the rocker cover to see if cam is moving if not moving you broke the belt and the head needs to come of to fix the valves that you may have bent

jimbo

How is that too much work?? About 30 seconds to put the engine on top dead centre and another 10 seconds to remove the dizzy cap.
He said he is getting spark so the timing belt obviously has'nt snapped, but it is possible it may have skipped some teeth. Also, if you managed to bend a valve on a Suzuki motor by snapping a timing belt you've done well, as they are a free spinning motor and the valves don't come into contact with the pistons like some other motors.

sorry my bad was late didn't read it correctly

Pretty sure the 1.3L is a non-interferance motor. Though dont go and wind it over with valves open to check. If you put the 1.3L head on a 1.6L block it becomes interferance i belive. As Joe said, if you have spark at each sparkplug, then your cam and dizzy are rotating. If the T-belt jumped a tooth or two, it would wither run like carp or backfire out the carby. Un-bolt the flange at the end of your exhaust manifold/extractors and try to start it to check the exhaust is not blocked. Check the basic stuff like fuel filters first. Then check your carby, make sure the jets are not blocked, that the neddle and seat valve is flowing etc. Look down the carby throat and pump the acclerator pump, make sure it acutally has fuel at the carby.

Layto....

lay80n wrote:Pretty sure the 1.3L is a non-interferance motor. Though dont go and wind it over with valves open to check. If you put the 1.3L head on a 1.6L block it becomes interferance i belive. As Joe said, if you have spark at each sparkplug, then your cam and dizzy are rotating. If the T-belt jumped a tooth or two, it would wither run like carp or backfire out the carby. Un-bolt the flange at the end of your exhaust manifold/extractors and try to start it to check the exhaust is not blocked. Check the basic stuff like fuel filters first. Then check your carby, make sure the jets are not blocked, that the neddle and seat valve is flowing etc. Look down the carby throat and pump the acclerator pump, make sure it acutally has fuel at the carby.

Layto....

yeah my old one broke a cam belt at around 7000rpm.. no bang wans kinda disapoing ( the motor was SHAGGED would have been good to explode)

it did give the same symptoms.. just all of a sudden stopped..

BUT u wouldnt have spark as cam wasnt turning!!!!!!!!!!!!!

so it has fuel? and it is getting fuel out of the carbi in2 manifold?

is it giveing any signs of life at all?? miss? pop? fart?

Ive just spent a few more hours trying to get the motor to start.So far i have checked the timing belt and it hasnt skipped or broken and when i set the camshaft at tdc it also lines up with the timing mark on the flywheel.I then reset the dizzy so the rotor then lined up with no 1 on the cap and poured a small amount of fuel down the carby and it still wouldnt fire.I then turned the dizzy 180 degrees and then it would backfire through the carby im sure its gotta be something small that im missing

is all the wires connected up? carb etc

inc the two wires to the dizzy. they have farked me before.

have u got
fuel
spark
air
?

I know the 2 wires you mean as i had one come apart before but they are all good and its got plenty of spark.When i pulled the plugs out they were wet so there is fuel getting into the cylinders

Its finally alive again I talked to the local suzuki mechanic this morning and it also had him puzzled as it still had spark and wouldnt fire.I went to grab my spare dizzy cap to try that and i remembered we used it on a lj80 dizzy so i thought the whole lj80 dizzy might fit and its an exact match.The engine fired up straight away and so now it looks like im going to be running a points ignition for a while as i was quoted $485 for a new ignition module which is more than the purchase price of the car.Id like to say thankyou to everyone that offered their advice and experience

wow ign moduel died??
rare!!
good to here its running tho!

ive had a module die before so that was the first thing i checked and replaced with my spare but the thing that was strange is that the motor had spark and wouldnt fire when timed correctly but it would fire when the timing was 180 degrees out

Maybe due to lower combustion chamber pressure when the timing's 180 out?

Ie on compression stroke the module is falling over, but on exhaust its OK?

Steve.

you are most likely right there I cant think of any other reason and neither could the mechanic now just got to find another dizzy from the wreckers I think $480 is alot for a new module

u need a 1,3 dizzy or module?

as i have a spare or two to sell here if u want i think. (cheaper also:))

PM me

Mine just died the other day also, i thought it was the fuel pump after taking it out and checking it and putting it back it seems it pumps fine as it makes it to the carb when i crank the motor so its not a delivery problem, ive also tried the filter and put another one inline before the pump so its not that, its got a brand new cat and exhaust on it and ive picked up a bottle of petrol cleaner, new dizzy cap and plugs so will try them tonight and see if its any better!! didnt have leads in stock but hopefully i wont need them and that its just a bad batch of fuel.

carb and motor was running fine prior to this so fingers crossed its nothing too major, we mite have the same problem...

mick85 wrote:Mine just died the other day also, i thought it was the fuel pump after taking it out and checking it and putting it back it seems it pumps fine as it makes it to the carb when i crank the motor so its not a delivery problem, ive also tried the filter and put another one inline before the pump so its not that, its got a brand new cat and exhaust on it and ive picked up a bottle of petrol cleaner, new dizzy cap and plugs so will try them tonight and see if its any better!! didnt have leads in stock but hopefully i wont need them and that its just a bad batch of fuel.

carb and motor was running fine prior to this so fingers crossed its nothing too major, we mite have the same problem...

Put your second filter between the pump and the carby. The fuel pump diaphram has a habit of shedding little bits of rubber that block up the idle jets.

Layto....

Thats true i have had the fuel pump diaphram break up and block the jets so now i run a second filter between the carb and fuel pump.Did your motor just stop dead or did it miss and splutter for a bit

at least all your problems were faulty components. i had a running problem that only accured when at revs for a period of time. had fuel, spark and everything was fine at idle and when reved up in the garage but on road it would die after 5mins.

Turned out to be a little gumnut in the tank getting sucked up and restricting fuel flow. took me 4 weeks to figure it out and hours of parts swapping.