Black swirls in Coolant Reservoir - Page 2

gmctrucks · 03-16-2009, 10:05 PM

Brads right it might have been a big black bug. But really I hope it's nothing bad.

leolkfrm · 03-17-2009, 04:43 AM

Quote:

Originally Posted by bradrhale

i think you are making this out to be too much. that coolant sits there in that resevoir for long periods of time and over time will develop a little debris in the bottom. it can be anything from bugs like was mentioned to radiator hoses breaking down over their life to who knows what. really dont imagine it is related to your exhaust inquiry.

Exhaust?? I'm lost
chances are they never cleaned the tank when they flushed it, good project for the the next sunny day and a couple of cold ones

bradrhale · 03-17-2009, 06:45 AM

Quote:

Originally Posted by blackwarbeast

is it expensive to get a pressure test done? Also if it ends up being the head gaskets could it be related to my rusted exhaust?

hey leo, i misread that ever so slighty.
reason i mention about junk in the tank is most every truck i have owned has had this. whether it be that the top doesnt snap on right or there is a crack in the tank.

chengny · 03-19-2009, 04:42 AM

I'm with bradrhale on this - let it be.

Think of the system as a whole. If you had to pick a place for "little black swirls" to accumulate, the surface of the coolant in the expansion tank is exactly where you want them. This is one of the design features of an expansion tank in a cooling system.

If they (the swirls) are really bugging you, try this trick, We always skimmed any oily returns out of the inspection tank with strips of newspaper. Seems newsprint kind of lets water roll off but it sucks up any type of oil like a magnet,

If you clean the surface and the stuff never returns... it was probably left in the cooling passages during the manufacturing process.

leolkfrm · 03-19-2009, 04:52 AM

Quote:

Originally Posted by bradrhale

hey leo, i misread that ever so slighty.
reason i mention about junk in the tank is most every truck i have owned has had this. whether it be that the top doesnt snap on right or there is a crack in the tank.

this is what happens this early, I missed the rusted exhaust part

oh well

bradrhale · 03-19-2009, 06:37 AM

does this mean that neither one of us are paying any attention?? i could try to blame it on old age, but only one of us fits that catergory.

crabtruck · 03-19-2009, 05:15 PM

what makes you think your age is effecting leo ?

bradrhale · 03-19-2009, 08:34 PM

jealousy perhaps??

crabtruck · 03-19-2009, 08:43 PM

dang, boy's quick too. LOL
poor leo

leolkfrm · 03-20-2009, 05:37 AM

Boy I almost missed this this morning!!!!
The elders should be saying, if you clean it up, then it appears again(less than 2 months) then further investigation would be warranted, otherwise drive it like your father owns it

03-19-2009, 04:42 AM	#14
chengny Senior Member Join Date: Sep 2007 Location: So. NH Posts: 197	I'm with bradrhale on this - let it be. Think of the system as a whole. If you had to pick a place for "little black swirls" to accumulate, the surface of the coolant in the expansion tank is exactly where you want them. This is one of the design features of an expansion tank in a cooling system. If they (the swirls) are really bugging you, try this trick, We always skimmed any oily returns out of the inspection tank with strips of newspaper. Seems newsprint kind of lets water roll off but it sucks up any type of oil like a magnet, If you clean the surface and the stuff never returns... it was probably left in the cooling passages during the manufacturing process. __________________ 1986 Sierra Classic Still Stock

03-20-2009, 05:37 AM	#20
leolkfrm Senior Member Join Date: Mar 2008 Location: N.Y. Posts: 4,300	Boy I almost missed this this morning!!!! The elders should be saying, if you clean it up, then it appears again(less than 2 months) then further investigation would be warranted, otherwise drive it like your father owns it __________________ 4 wheels move the body 2 wheels move the soul B.W.A.I

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03-16-2009, 10:05 PM	#11
gmctrucks Senior Member Join Date: Nov 2006 Location: Houston,Texas Posts: 4,035	Brads right it might have been a big black bug. But really I hope it's nothing bad.

03-19-2009, 06:37 AM	#16
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,030	does this mean that neither one of us are paying any attention?? i could try to blame it on old age, but only one of us fits that catergory.

03-19-2009, 05:15 PM	#17
crabtruck Senior Member Join Date: Jul 2007 Location: on your 9 Posts: 3,366	what makes you think your age is effecting leo ?

03-19-2009, 08:34 PM	#18
bradrhale Senior Moderator Join Date: Apr 2006 Location: Texas Posts: 8,030	jealousy perhaps??

03-19-2009, 08:43 PM	#19
crabtruck Senior Member Join Date: Jul 2007 Location: on your 9 Posts: 3,366	dang, boy's quick too. LOL poor leo