slightly off topic

crushers · 01-01-05, 08:52 AM

so i have had a reoccuring problem at very cold tempuratures. i have a turbo diesel 2.7 that knocks very badly when the outside tempurature is below -15C. if the temp is above that then there is no knock at all.
when it is knocking there is:
no loss in power.
it is rpm related.
the engine will not blow hot air (although it will cook you out of the cab above -15C)

my guess is probably a fuel knock. any other guesses or suggestions?

cheers

beanz2 · 01-01-05, 11:00 AM

Maybe the problem is that it is not a Toyota engine?

How about frozen coolant?

Dave

crushers · 01-01-05, 11:04 AM

we changed out the coolant last week...
could be the Mits design i guess.
what is really cool is the little bugger fired up at -25C with out being plugged in and the Yotas were harder starting...
cheers

Island Moose · 01-01-05, 11:44 AM

Crushers, add an anti-gel additive and see if he problem goes away...it sure sounds like fuel knock. I wonder if the local gas stations got some diesel brewed for the coast instead of the Alberta deep freeze?

crushers · 01-01-05, 12:24 PM

i will give that a try but i fill all the trucks at the same pump...
hummm, now that i think of it this engine is the only one that doesn't have the conditioner...
cheers

01-01-05, 08:52 AM	#1
crushers IH8MUD Lifer Join Date: Feb 2004 Posts: 9,793	slightly off topic so i have had a reoccuring problem at very cold tempuratures. i have a turbo diesel 2.7 that knocks very badly when the outside tempurature is below -15C. if the temp is above that then there is no knock at all. when it is knocking there is: no loss in power. it is rpm related. the engine will not blow hot air (although it will cook you out of the cab above -15C) my guess is probably a fuel knock. any other guesses or suggestions? cheers __________________ pulling this info out of my ass so take it with a pound of salt "People are poor because they don't spend money wisely, tough sh!t !!! " John Galt 09/22/08 "educate yourself. Sorry if that seems too blunt." John Galt 11-01-08 Wayne in Ontario http://www.ivoac.ca join today

01-01-05, 11:04 AM	#3
crushers IH8MUD Lifer Join Date: Feb 2004 Posts: 9,793	we changed out the coolant last week... could be the Mits design i guess. what is really cool is the little bugger fired up at -25C with out being plugged in and the Yotas were harder starting... cheers __________________ pulling this info out of my ass so take it with a pound of salt "People are poor because they don't spend money wisely, tough sh!t !!! " John Galt 09/22/08 "educate yourself. Sorry if that seems too blunt." John Galt 11-01-08 Wayne in Ontario http://www.ivoac.ca join today

01-01-05, 11:44 AM	#4
Island Moose IH8MUD Addict Join Date: Dec 2004 Location: Auckland NZ via Vancouver Island Canada Posts: 818	Crushers, add an anti-gel additive and see if he problem goes away...it sure sounds like fuel knock. I wonder if the local gas stations got some diesel brewed for the coast instead of the Alberta deep freeze? __________________ MOOSE SOLD HER - SOMEDAY SOON JDM's...THEY SAVED THE BEST FOR THEMSELVES!!

01-01-05, 12:24 PM	#5
crushers IH8MUD Lifer Join Date: Feb 2004 Posts: 9,793	i will give that a try but i fill all the trucks at the same pump... hummm, now that i think of it this engine is the only one that doesn't have the conditioner... cheers __________________ pulling this info out of my ass so take it with a pound of salt "People are poor because they don't spend money wisely, tough sh!t !!! " John Galt 09/22/08 "educate yourself. Sorry if that seems too blunt." John Galt 11-01-08 Wayne in Ontario http://www.ivoac.ca join today

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01-01-05, 11:00 AM	#2
beanz2 IH8MUD Lifer Join Date: Nov 2002 Posts: 2,126	Maybe the problem is that it is not a Toyota engine? How about frozen coolant? Dave