Stuff in coolant

[Splangj]

My 69 RR 496 hasn’t been fired up in over a year now. Just got through topping of tires and trickle charging. Then I cleaned the surface mildew from the interior. Go to check the water and I can’t quite see any in the radiator. I add a few cups, and now it’s present, but with these little floaters. I’m guessing oil, what say everyone else? I did overheat it once years ago, due to low coolant. It ran ok after that. It’s got RPM heads on a fel pro blue gasket I believe. Thanks in advance!

 

[pnora]

Looks like it could be time for a radiator and get a shroud on it. Or. Flush the system completely and fill it 50-50 and go from there.

 

[Splangj]

Looks like it could be time for a radiator and get a shroud on it. Or. Flush the system completely and fill it 50-50 and go from there.

I have a new aluminum radiator waiting…. But what’s this sludge? I’m going to pull the oil drain plug tomorrow, and see if any water comes out. If not, I’m going to fire it up and see what happens.

 

[pnora]

I have a new aluminum radiator waiting…. But what’s this sludge? I’m going to pull the oil drain plug tomorrow, and see if any water comes out. If not, I’m going to fire it up and see what happens.

Who knows. Oil always comes to the top. Most likely form oily drain pans that were used for coolant draining. Does not look like much to me.

 

[PurpleBeeper]

I have a new aluminum radiator waiting…. But what’s this sludge? I’m going to pull the oil drain plug tomorrow, and see if any water comes out. If not, I’m going to fire it up and see what happens.

The sludge looks like casting sand

 

[pnora]

The sludge looks like casting sand

Thing is casting sand does not float up to the top tank of the radiator.

 

[Don Frelier]

I would drain it, run some water and then drain again catch it in a clean container and see what it looks like.
( If I was in California)

 

[ckessel]

Run some flush compound through it before putting the new radiator in. Cascade dishwashing soap can be used too.

 

[Geoff 2]

They are called floating 'turds'. Unless you use a filter in the top hose, said turds will quickly block up the tubes in the new rad. You CANNOT flush those things out, some will remain. The filter will block up, which you can remove & clean. After a while [ might take a lot of miles ], you will eventually get a clean filter & you can then remove it if you wish.