cool down time

[jgraber]

How long are you guys letting your trucks cool down B4 shut off? A specific amount of time or a specific EGT temp. ? Just curious because I have read some guys talk of 1,2,3,4,5 mins. , but Banks recommends 350 deg. or less to avoid internal damage and that # happens very quickly.

Thoughts?

 

[24V-DSL]

I use egt pre-turbo and wait for 300 degrees. Doesn't take very long if you haven't been under much load.

 

[TomGolden]

I'm probably a bit more conservative than most on this subject. My SPA thermocouple is mounted pre-turbo, and I wait until at least 275*F or even cooler before shutting down. I also wait usually at least a full minute, regardless of temperature. I figure a little extra is a good thing, although some might feel that letting it cool down too long could lead to cylinder wash down if your temp is too low for adequate combustion. But my feeling there is that 1 minute isn't going to be a problem - if you idle for very long periods, like say 20+ minutes at a time, then yes, you could very well be getting incomplete combustion and therefore cylinder washdown.



Tom

 

[Scrappy]

COOLDOWN

Get you an ISSPRO turbo temp monitor, turn key off, lock doors and walk away. It will shut down by itself!

 

[HC]

Originally posted by jgraber

How long are you guys letting your trucks cool down B4 shut off? ... . Banks recommends 350 deg. or less to avoid internal damage and that # happens very quickly.

Thoughts?

1) The 350 deg is probably OK if a post turbo temp; I'd go to 300 for a preturbo mount (but then again see the post below!)



2) yes, in winter, it happens very fast. With light food driving starting 3 minutes before I arrive at destination, my cooldown is often 0 to 15 seconds in winter.



3) In summer, you'll have to turn off the AC or it will take forever.

 

[JFitzgerald]

I wait for below 300 pre-turbo, at least. Like HC, I try to take it easy the last bit of the trip before I'm gonna shut 'er down. Saves sitting in the truck waiting and watching the guage. If I've been on it hard, or towing, it takes several minutes to get below 300. The Isspro auto shutdown system would be nice!

 

[illflem]

350° pre turbo has worked for me for 300k+ miles, if I wait for 300° I'd be there all day.

 

[HC]

Originally posted by illflem

350° pre turbo has worked for me for 300k+ miles, if I wait for 300° I'd be there all day.

That's good to know.

 

[MPBerk]

Regardless of run time, Isspro pre-turbo when the needle hits 300*. May seem anal... to each there own

 

[Deezul1]

I cant sit and wait that long so 350 in the summer and 300 in the winter. I would like to wait longer but no patience, also use synthetic oil to lessen chance of problems.

 

[mgonske]

Fueling with Engine Running?

I tend to make fairly quick "pit stops" when on the road on a long trip (I'm not out there for the drive--I have very little vacation time and need to get to/from my the other side of the country quickly, so the time can be spent on the recreational activity).



I've got my ISSPRO Turbo Temp Monitor sitting in the garage waiting for installation. Does anybody leave their CTD running while refueling, rather than wait for the cooldown and then shutting down to pump (I leave the RV fridge running)? Is this a silly newbie question?



Thanks,

Mark

 

[illflem]

I fuel up while idling all the time. It's no big deal to idle 5-10 minutes after the engine is warmed up. I wouldn't want to do it much while the engine is cold though.

 

[MPBerk]

Mark

I've got my ISSPRO Turbo Temp Monitor sitting in the garage waiting for installation.

Get it in asap. Awesome piece of the puzzle regardless of your CTD experience level. While on the long hauls (55+ whether fueling or not) cool down to 300* is my standard. May take a few minutes, but well worth the wait. Like illflem stated: bad to idle long periods on the cold start ups.



Only silly newbie question is the one not asked. Welcome to the club.



r/Mark

 

[HC]

Fueling while idling in a diesel doesn't concern me much. My main issue is, what will happen if the parking brake pops off? A few have reported having this problem. So I try to do it only if the pumps are level and a roll-off unlikely.



Fueling a gasser, using cell phone while fueling a gasser, those are different issues. There was a safety bulletin at work recently - gas station fires/explosions go up dramatically in cold weather because folks fueling get back in car, then slide out when the pump stops. Whether the engine is running or not, one static spark from sliding across that seat sometimes does the trick. I mention this not for this group, but for your spouses and kids who may not have ever heard it and might be driving gassers. Tell them!



And if you're not at the big-rig pumps, remember, you're next to a gas pump, even if you're not using it, they guy on the other side of the island might be.

 

[illflem]

Cell Phones have Caused Explosions at Gas Stations -Fiction!



http://www.truthorfiction.com/rumors/cellgas.htm



Gasoline Fires Started by Static Sparks -Truth!



http://www.truthorfiction.com/rumors/sparks.htm

 

[Sixpack]

250* pre turbo