Rattles a ton when starting cold

[basilbowman]

Just exactly what the title says - maybe 10-15 seconds of real hard rattling before it calms down, and then it steps down from high idle maybe 2 or 3 minutes later. Is that a normal diesel or is my timing off?

 

[93f250idi]

sounds like timing is too far advanced.

 

[basilbowman]

Shadetree did it pretty roughly by ear for me in the summer - is that something damn near any shop can do correctly, or is there enough of an art for it to be worth seeking out somebody highly recommended?

 

[basilbowman]

Also - I think I've got some air intrusion issues, it doesn't like to start up on the front tank, I think because it'll seep back. I need to chase those down over Christmas Break - does that change engine noise?

 

[Dieselcrawler]

acutally it sounds like it is damn close in timing. when the timing is set correctly, and the motor is cold, it will rattle really loud till she warms up a bit

 

[gdhillon]

acutally it sounds like it is damn close in timing. when the timing is set correctly, and the motor is cold, it will rattle really loud till she warms up a bit

thats what mine does....along with a large cloud of blue or white smoke

 

[TWeatherford]

Mine rattles pretty good cold, until the cold advance kicks off. It does it a heck of a lot more since I got a meter from Gary and set the timing to 9* BTDC, so I know its set right. Now I'm used to it and my neighbors can get over it.

 

[CurtIDI94turbo]

Also - I think I've got some air intrusion issues, it doesn't like to start up on the front tank, I think because it'll seep back. I need to chase those down over Christmas Break - does that change engine noise?

Mine was doing the same thing and found the O-Rings at my return caps were leaking. After replacing them it cured the problem. Good Luck

 

[johneich]

Is that something damn near any shop can do correctly, or is there enough of an art for it to be worth seeking out somebody highly recommended?

I have one of the Kent-Moore meters Gary rents out and I just follow his instructions, its easy

Some shops will "rip you off" and time it by ear for $100.00+

Most shops no longer have the knowledge to do the job properly anymore.

 

[finitetime]

Air intrusion.
I have set of the cheap return lines and caps and mine rattles a lot more than it use to. If I let it set for more than a day its a B@#*! to start without holding the pedal on the floor for 10 sec.

 

[GOOSE]

I'm definitely loud on startup. Music to my ears. Gets pretty quiet and smooth after warm up though. I'm timed at 8.5deg.

 

[gatorman21218]

yes mine sounds like a chain swinging around in a 55 gallon drum, along with enough blue smoke to kill every mosquito in the south.

once she warms up though its right. I just replaced the IP and injectors last winter, and while I never did time it, its been running good, so I just hold my breath and truck on

 

[basilbowman]

I did all the return lines this summer fighting air intrusions then, they're brand new. Maybe it's just the way these IDIs are - it's real loud though. I've got to change the oil in the next couple hundred miles, I think I'll put some 5w-40 in and see if that quiets it down a bit.

 

[DragRag]

At 9 degrees mine sounds like a rock crusher when the high idle is on in the morning. It is perfectly normal.

 

[basilbowman]

I've been informed that air intrusion can cause advances in timing - and since I've got a bit of a leak, which causes a bit of a zoom when it starts up - I'm thinking these are all related. I'll drop it in the shop over Christmas and see what I can find. I hate hunting for airleaks though!!