cavitation

Reply Subscribe

Thread Tools

Search this Thread

Feb 9, 2004 | 08:11 PM

#16

klr2mato

Freshman User

Joined: Mar 2002

Posts: 47

Likes: 0

From: Cloverdale USA

grt,
Don't apologize. No offense taken. Wow did this conversation get complicated or what? I was just trying to let firebug know that there is really no way to tell if the engine has cavitation until it's too late and there is water in the oil. I have never seen a PSD with water in the oil from cavitation. Jlower said something about the water pump being part of the cause because of the lowered or negative pressure it causes. Maybe thats how the air becomes entrained and the bubbles get into the system.
International tech has a point. The only times I have found serious problems with "cavitation" Have been in engines with replaceable sleeves as opposed to cast integral cylinders. I have NO idea what the relationship is. I do know that the sleeves vibrate side to side very quickley as the engine turns. Maybe this causes the negative pressire the we are talking about? I don't know but don't worry about offending me. I'm just like everybody else here trying to figure stuff out.

Feb 9, 2004 | 08:43 PM

#17

grtF250

Senior User

Joined: Feb 2004

Posts: 152

Likes: 0

From: Utah

Good to know, and I agree this thread has gotten a little off the orgional subject. But i've learned a few things. From what everyone has said it sounds like the newer engines are less prone but not immune to cavitation damage, so I think when I find mine I'll defentally check the coolent and maby the oil.

Back to firebug's question it sounds like with 120k the additive in the coolent (at least now), and maby an oil test just for good measure the truck should fine.

Feb 9, 2004 | 08:52 PM

#18

grtF250

Senior User

Joined: Feb 2004

Posts: 152

Likes: 0

From: Utah

I kindof hesitate to add another comment but what Klr2mato and international tech have said would lead me to think that the sleeves would be more likly to be damaged from cavitation.

In general cavitation CAN be caused from a vibration, the wall moves away from the fluid very quickly and "suck" the fluid toward it. This can cause a cavitation bubble, which the ruptures when the wall moves back and the pressure increases. If the sleeved engines vibrate more then the solid block then there is the potential for more cavitation.

Just a thought, any others?

Just a thought

Feb 10, 2004 | 07:06 AM

#19

HDMustF250

Senior User

Joined: Jan 2004

Posts: 225

Likes: 0

From: Middle Geogia

I just got my results back from the oil analysis no glycol in the oil.

Feb 10, 2004 | 12:54 PM

#20

believer45

Posting Guru

Joined: Nov 2000

Posts: 1,005

Likes: 1

From: Cincinnati, Ohio

So, Firebug, did you buy the truck?

Enqiring minds want to know

Dave / Believer45

Feb 10, 2004 | 04:57 PM

#21

Thumper4995

Senior User

Joined: Feb 2003

Posts: 333

Likes: 0

From: Idaho

I have a few questions for you guys:
1. My test strips from NAPA have three patches on them. One is for pH level, one is for Nitrite PPM and one is for Percent Glycol (freezing point). What are the three different patches measurements representing exactly? I understand the freeze point but not to clear on pH and Nitrite PPM.

2. I purchased an additive from NAPA called NAPA Kool (Cooling System Treatment 4058). Is this the correct additive or a suitable substitute? It states it is for protecting all metals in cooling system, reduces cavitation erosion-corrosion..?

3. Can you give me a number to contact for an oil analysis? I live in Boise, ID.

Thanks in advance for your time and efforts.
Craig

Feb 10, 2004 | 05:21 PM

#22

shendoa

Senior User

Joined: Jan 2004

Posts: 390

Likes: 0

From: northern Maine

oil analysis= Blakstone laboratories 4929 south lafayette st. fort wayne IN. 46806= just took the address of my kit, they will send you a kit for free, test is 10, 0r 15 dollars.