Sludge monster!
Senior User
Joined: Oct 2002
Posts: 272
Likes: 1
From: Grande Prairie, AB
hey i got an idea, run deisel fuel through it, I do this to everything I own, works awesome. I dont do it regularly but when Im think it needs it i will do it. Check it out really works good
Post Fiend
Joined: Jan 2004
Posts: 6,610
Likes: 2
From: Northwest, Arkansas
The 390 and 360 are basically the same engine, but the 360 is the runt of the litter and has never been as strong or reliable as the 390. The 390 would be a direct replacement though for that 360.
Posting Guru
Joined: Mar 2002
Posts: 2,070
Likes: 2
From: Boise, Idaho
Originally Posted by ctrlaltdl
Thanks for the info pcmenten. I'll be sure to get that done.
Btw, how do I boil the radiator? Is that something I need to take to the local radiator shop to do?
Btw, how do I boil the radiator? Is that something I need to take to the local radiator shop to do?
I've heard that you can use toilet bowl cleaner to clean a radiator. It has HydroChloric Acid to clean the corrosion off of the brass tubes. I haven't tried it, yet. It costs me about $40 to get my radiators cleaned at Fry's here in Boise, so that's what I do.
I'd recommend getting the wasted valve repaired and then cobbling the engine back together as cheaply as you can. Then wait for someone else's rebuilt 390 to be advertised in the local paper.
Post Fiend
Joined: Feb 2001
Posts: 6,624
Likes: 8
From: Missouri
For really dirty engines I mix about 2 quarts of diesel in with the oil and let it idle for about 15 minutes. I have never seen this hurt an engine and it always seems to get it super clean. Just make sure to have a new cheap filter on so you can catch all that crap.
Marvel Mystery Oil or Tranny Fluid is great for a gentle cleaning every once in a while.
Marvel Mystery Oil or Tranny Fluid is great for a gentle cleaning every once in a while.
Senior User
Joined: Oct 2002
Posts: 272
Likes: 1
From: Grande Prairie, AB
Its called major blow-by, this occurs when your rigns dont seal the combustioin chamber all the way. Try a new ring set, or if in need bore and pistons, do the lower end as this will increase the load on it as well.
