1HZ air leak

[roscoFJ73]

Ive had this problem with the HZJ75 cranking longer and longer before it would start as winter got colder.
It would start perfectly for the rest of the day ,it was just the start 1st thing in the morning that was taking too long.
I first thought the glow plugs were dead so I took them out and tested them and they turned out ok.
While I had the plugs out ,I spun the engine over to see if there was any fuel in the injector lines.
Normally you will see little plumes of diesel shoot out the glow plug holes but there wasnt any.
After about 15 seconds the fuel began to shoot out so I knew air was my problem.

I wanted to know exactly where the leak was so I replaced hoses clamps and checked the filter seals a little bit at a time in the engine bay.
Then I would start it the next day and after 3 days with no change I was beginning to despair
As luck would have it ,it was the last bit of rubber fuel line and clamps left in the engine bay that was at fault.
It was the bit of hose that goes from the metal fuel line to the fuel pump.
I kind of guessed it was that piece as the clamp and hose that was attached to the pump end slid off with almost no effort.
It now starts on the 1st piston to get compression,which takes 1/2 a second

While I had the plugs out I showed them to the local parts shop. He reckons I still have the original plugs in there.
No one ever uses Denso plugs here as a replacement,they all use Bosch,NGK or HKT
Not bad after 13 years and 240 000 klms

[mac]

Congrats Rosco. Is that a 24v starter?

I love the way these things start. I'm so use to the quick turn of the key that when I drive something else I always end up having to key it twice as I never hold the key long enough.

My Dad's Powerstroke cranks for an eternity- something to do with the ECU locating #1 cylinder and firing it first. My 12v Cummins starts quickly but nothing like the 1HD-T.

[roscoFJ73]

Originally Posted by mac

Congrats Rosco. Is that a 24v starter?

I love the way these things start. I'm so use to the quick turn of the key that when I drive something else I always end up having to key it twice as I never hold the key long enough.

My Dad's Powerstroke cranks for an eternity- something to do with the ECU locating #1 cylinder and firing it first. My 12v Cummins starts quickly but nothing like the 1HD-T.

Nope ,all 12v here except for JDMs.
I was away overnight down south in the hills and this morning was close to zero but it started straight away.
I have 2 x 700cca Bosch 4wd batteries

When I was very young I used to go with my dad in the truck to pick up timber from the mills.
I would be freezing cold at 5am and they use to start the old tractor forklift by towing it with a small steam loco so they could load us

Your right,there are not too many diesels that start as well as Toyotas or Japanese diesels in general.

Man I am so happy I got rid of the leak. Had ideas of low compression sneaking in

[Tapage]

Originally Posted by mac

My 12v Cummins starts quickly but nothing like the 1HD-T.

X2 .. also 12H-T fireup fast .. lest than 2segs on the starter .. ( halfturn to the crank ? )