Thread: LN106 hard starting: ideas?

Toyota hilux diesel probably got a 3l in it

I pumped the primer til hard this morning and it fired first crank. Air leak confirmed now just have to find where.

I have a spare newprimer pump lying around (parts bin Toyotas!) will test if fitting it fixes the issue

I had very similar problem last week on my KUN26R Hilux. Would start after some cranking (unusual, normally started first turn), then run for for a while, then stop. Hadn't been driven for two months. Would prime the pump, crank it some more, then it would drive fine. Once it had stopped for 30 mins, problem would return.

Thought back to what I'd done on the last service, had changed both the fuel filters, the pre-filter and the factory filter. Discovered I had dropped the o-ring out of the top of the water trap that screws onto the bottom of the pre-filter, found it on top of the chassis rail. Could hear the filter making little 'sip' noises as it depressurized.

Understand that you are not happy with your local mechanic, but if I were you I would be straight back there demanding he show you exactly what he dismantled. If he has had the pump off its mount, is there any chance he had the fuel circuit apart to get at the brake line? As mentioned above it is possible there is a hairline crack somewhere due to vibration, or it could be like my problem, a simple missing o-ring or seal.

Just replace the hose to the filter as that’s the most likely hose that’s split.

Originally Posted by northdude

The valve in the primer pump craps out and fuel drains off over night back to the tank just do the simple stuff first rotary injector pumps are self bleeding

.

I don't want to get ahead of myself but I changed the primer pump and it started well an hour later, when earlier today it was running like absolute shit and wouldn't idle, so I may have fixed the problem.


Any tips on changing the rear gearbox mount now?

Did not succeed. Getting Brad to look at it.

new primer pump or second hand

Why did you have to ask this.........went to shift mine, and turned over but didn't start. Finally caught enough fuel to fire, coughed abit, and away it went.

Murphy must be running around all the ol' girls and having his evil way. Little Irish basket

Originally Posted by northdude

new primer pump or second hand

Brand new. Obviously still sucking air or has a moving blockage somewhere in the fuel system but I can't track it down and it died in the middle of the street yesterday and I'm sick of looking and getting covered in diesel

Originally Posted by gimp

Brand new. Obviously still sucking air or has a moving blockage somewhere in the fuel system but I can't track it down and it died in the middle of the street yesterday and I'm sick of looking and getting covered in diesel

Have you considered trading it in on a Landcruiser?

i can safely say that in the last few weeks i have learned a hell of allot of info on the mitsi 4d56 motor !!!

Originally Posted by Tussock

Have you considered trading it in on a Landcruiser?

Can't find a low k's rust free landcruiser for less than 30 grand so not really

I've considered never going near that particular mechanic again though