Hydrolicing

[MyGQ]

Hi guys

Ok here is one for you. Went to mud drags last weekend. At the end we noticed that a few ppl were sticking their cars under a large hydrant with an old steam train boiler filler pipe to wash most of the mud off their cars.

Now i did, but a mate put his patrol under it and left it running, you would think all good but his shorty has the Nissan Factory snorkle that goes up the left pillar and goes over the top of the passengers door and suck air in around the gutter area. You can guess what happened here, water has gotten into his diesel and it stalled. We didn't restart it there and then.

We have trailered it back to the Central Coast, removed the injectors and turned it over to get rid of the water out of the engine, put the injectors back in and fired it up, its knocking as i though it would and blowing white smoke, i know its bent something but dunno if its a rod of valve. Is there a way to tell without totally ripping the engine down?

[big lux]

most of the time a hydo lock will cause a bent rod if the engine was running and also if you waited to blow it out till you got home theres a fair chance that rust began to form on the rings and bore and damged you bore. a dry then wet compression test will tell you the condition of the bore and ring sealing capabilities as will a quick check of your blow by. Compare all your readings dry then wet across the engine and you will find what cylinder it is. If you did think it was a valve wich i dont think it is you just pull the rocker set off pull the glow plug or injector out and blow compressed air in and listen for leaks.

[marko]

If its a bent valve, the valve lash on that cylinder will excessive. But very unlikely to have bent a valve. Bent rod for sure

[chpd80]

Had a mate bend a rod from water induction, it still ran but made one hell of a bad noise, the bend could hardly been seen, but was bent slightly.

It doesnt take much to totally stuff the bore once a rod is bent, a bent rod is a problem that wont just happily stay there for years, it will destroy whats left of the motor, sorry.

[84mksd33t]

Hi guys

Ok here is one for you. Went to mud drags last weekend. At the end we noticed that a few ppl were sticking their cars under a large hydrant with an old steam train boiler filler pipe to wash most of the mud off their cars.

Now i did, but a mate put his patrol under it and left it running, you would think all good but his shorty has the Nissan Factory snorkle that goes up the left pillar and goes over the top of the passengers door and suck air in around the gutter area. You can guess what happened here, water has gotten into his diesel and it stalled. We didn't restart it there and then.

We have trailered it back to the Central Coast, removed the injectors and turned it over to get rid of the water out of the engine, put the injectors back in and fired it up, its knocking as i though it would and blowing white smoke, i know its bent something but dunno if its a rod of valve. Is there a way to tell without totally ripping the engine down?

Did you get dirt on the injectors nozzles?

You sure its not just diesel knock? IE injector nozzle stuck open?

Perhaps one or some of the injectors got dirty when you pulled them out. They are very sensitive.

To test, start the engine and crack each injector 1 by 1 and see if the knock goes away. Do it one by one.

[marko]

Hi guys

Ok here is one for you. Went to mud drags last weekend. At the end we noticed that a few ppl were sticking their cars under a large hydrant with an old steam train boiler filler pipe to wash most of the mud off their cars.

Now i did, but a mate put his patrol under it and left it running, you would think all good but his shorty has the Nissan Factory snorkle that goes up the left pillar and goes over the top of the passengers door and suck air in around the gutter area. You can guess what happened here, water has gotten into his diesel and it stalled. We didn't restart it there and then.

We have trailered it back to the Central Coast, removed the injectors and turned it over to get rid of the water out of the engine, put the injectors back in and fired it up, its knocking as i though it would and blowing white smoke, i know its bent something but dunno if its a rod of valve. Is there a way to tell without totally ripping the engine down?

Did you get dirty

You sure its not just diesel knock? IE injector nozzle stuck open?

Perhaps one or some of the injectors got dirty when you pulled them out. They are very sensitive.

To test, start the engine and crack each injector 1 by 1 and see if the knock goes away. Do it one by one.

I reckon the knock is rod hitting the lower edge of the bore.
Stuck injector would give black smoke not white. White smoke is uncombusted fuel due to low comp eg bent rod

[84mksd33t]

Hi guys

Ok here is one for you. Went to mud drags last weekend. At the end we noticed that a few ppl were sticking their cars under a large hydrant with an old steam train boiler filler pipe to wash most of the mud off their cars.

Now i did, but a mate put his patrol under it and left it running, you would think all good but his shorty has the Nissan Factory snorkle that goes up the left pillar and goes over the top of the passengers door and suck air in around the gutter area. You can guess what happened here, water has gotten into his diesel and it stalled. We didn't restart it there and then.

We have trailered it back to the Central Coast, removed the injectors and turned it over to get rid of the water out of the engine, put the injectors back in and fired it up, its knocking as i though it would and blowing white smoke, i know its bent something but dunno if its a rod of valve. Is there a way to tell without totally ripping the engine down?

Did you get dirty

You sure its not just diesel knock? IE injector nozzle stuck open?

Perhaps one or some of the injectors got dirty when you pulled them out. They are very sensitive.

To test, start the engine and crack each injector 1 by 1 and see if the knock goes away. Do it one by one.

I reckon the knock is rod hitting the lower edge of the bore.
Stuck injector would give black smoke not white. White smoke is uncombusted fuel due to low comp eg bent rod

A stuck injector is not just black smoke as the injectors timing is out and injecting on intake/exhaust cycles.

[MyGQ]

its not an injector we bled them and cracked each one, knock was there b4 and after doing all that

sounds like rod

[marko]

Hi guys

Ok here is one for you. Went to mud drags last weekend. At the end we noticed that a few ppl were sticking their cars under a large hydrant with an old steam train boiler filler pipe to wash most of the mud off their cars.

Now i did, but a mate put his patrol under it and left it running, you would think all good but his shorty has the Nissan Factory snorkle that goes up the left pillar and goes over the top of the passengers door and suck air in around the gutter area. You can guess what happened here, water has gotten into his diesel and it stalled. We didn't restart it there and then.

We have trailered it back to the Central Coast, removed the injectors and turned it over to get rid of the water out of the engine, put the injectors back in and fired it up, its knocking as i though it would and blowing white smoke, i know its bent something but dunno if its a rod of valve. Is there a way to tell without totally ripping the engine down?

Did you get dirty

You sure its not just diesel knock? IE injector nozzle stuck open?

Perhaps one or some of the injectors got dirty when you pulled them out. They are very sensitive.

To test, start the engine and crack each injector 1 by 1 and see if the knock goes away. Do it one by one.

I reckon the knock is rod hitting the lower edge of the bore.
Stuck injector would give black smoke not white. White smoke is uncombusted fuel due to low comp eg bent rod

A stuck injector is not just black smoke as the injectors timing is out and injecting on intake/exhaust cycles.

The inj pump decides when injection happens not the squirt

[jemmos]

bent con rod 4 sure. did it in my 4.2 gu. 3 bent rods, got it goin but ran rough and pumped out smoke. a lot of comression i diesels so its easy 2 bend rods. sorry mate it sux balls!!!