Iveco 75e17 problem

[Al Cormack]

Got an issue with my 7.5t that I'm not sure about.

Engine makes a siren noise that goes up and down in pitch in line with the accelerator going up and down.

 

Thought it was turbo so took it off, and found the turbo to exhaust manifold gasket was broken in half. Also some tell tale soot marks on exhaust manifold to head gasket.

 

Replaced all the gaskets, showed the turbo to iveco mechanic as there was a bit of play in the impeller but he reckoned it was OK.

 

Road tested just now and siren noise is still there😡

 

The day before the noise started I had a senior moment and left the lorry ticking over ALL day!😳😳

 

Lorry seems to drive ok. Amy thoughts in this one?

 

Cheers....Al.

[IVECOKID]

Bearings in Turbo knackered end off,fins on Turbo touching casing , I had same problem and thought I had a fire engine behind me ,.......seized solid next day , the bearings are bush type bearing too .Also check oil supply pipe to Turbo has mine was fractured hence Turbo failure.

 

 

Ste

Edited February 17, 2016 by IVECOKID

[Al Cormack]

Thanks for your reply.

 

Ticking over all day at low oil pressure could have done it then?

 

If it seizes completely is it driveable?

[IVECOKID]

If it seizes the oil will blow into exhaust and you will look like Thomas the Tank engine stoking up !! Seriously don't drive it and get it fixed asap or else you you empty oil out of sump via exhaust onto street .......been there.

 

 

Ste

[Al Cormack]

Oh, right. Thanks. Meant to be going to a job in Brighton tomorrow...😱

 

In your experience are second hand turbos too much of a gamble?

Recon mine or buy a new one?

[IVECOKID]

Not worth the gamble for the price they are asking for second hand , if its your bread and butter truck fix it right first time .

Recon normally takes around a week when I enquired last .

Also double check no holes in intercooler pipes too .

 

 

Sye

Edited February 17, 2016 by IVECOKID

[Al Cormack]

That's what I was thinking.

 

Thanks for your advice mate.

 

If you hear about a strange sudden fog on the M23 tomorrow.....

[Al Cormack]

Made down to Brighton 👍 just got to get back again later!

[Breezeblock]

If it seizes the oil will blow into exhaust and you will look like Thomas the Tank engine stoking up !! Seriously don't drive it and get it fixed asap or else you you empty oil out of sump via exhaust onto street .......been there.

 

 

Ste

 

ditto don't drive it my transit shat its pants on the m6 at gretna services and the marks are still there in the middle lane that was spectacular engine failure took the head off it and you could put your hand down the side of the piston:thumbup:

[Al Cormack]

Got back ok. 👍 Turbo off now and picking up a new one in the morning.