cavatating water pump

barcheta · 12-23-2009, 05:54 AM

Does anyone know what the symptoms are? Other than it running hot. I'm probabaly gonna have to replace the pump here with the next major. I've bled off the extra air that seems to accumulate in the system over time but I still seem to have issue with the car getting up above 195 even in cold weather like we've been having. Radiator was recored back in September. still need to replace the t-stat though.

Thoughts?

Granucci · 12-23-2009, 09:11 AM

Waterwetter for a quick solution. but, sounds like you are still getting air in the system?

have you bled the air lately?

Saint Bastage · 12-23-2009, 10:41 AM

Cavatation is defined as air in the pump housing preventing circulation. If a lack of circulation is the issue, theres a few other things to check from proper bleeding to thermastat failure. I doubt the pump is the issue unless its imploded somehow.

barcheta · 12-23-2009, 01:23 PM

true... I'll throw a new t-stat in like i've been threatening for months now and see if my mystery issues go away.

Gcalo · 12-23-2009, 05:15 PM

I would bet you have an issue with the T-stat.

I'd check the drive belt as well.

dinogt4guy · 01-06-2010, 01:13 PM

Does your heater work? If the stat is stuck it will only blow cold air. Are your fans working?

barcheta · 05-24-2010, 11:07 AM

Quote:

Originally Posted by dinogt4guy

Does your heater work? If the stat is stuck it will only blow cold air. Are your fans working?

Oh yes... fans are working ( i put haydens in)... it fact it gets quite warm in there.... I wonder could I also have a faulty temperature sender.... most likely the one behind the oil filter on the intake plenum. Anyone know what this part cost new? I have one that looks to be brand new but I cannot tell for sure. I got it with a few other parts from an fchatter a couple of years ago. From experience can anyone tell me if the temp gauge is faulty is the temp sender not far behind? The gauge was pulled and cleaned a year or so ago.

barcheta · 09-02-2010, 04:59 PM

followup to my saga. So pulled and cleaned the water temp gauge. Then I replaced the thermistor with a new one from Ricambi. Then I opened the expansion tank and took a temp reading. The gauge is spot on. While I had the cap off I noticed a fair amount of air bubbles in circulating with the coolant. I changed the oil about a month ago and did not notice any water or any milkyness in with the oil. Do you think I have the early signs of a blown head gasket? I guess the next thing to do in addition to a pressure test is to put a sniffer on the coolant to see if it has any hydrocarbons in it. The car runs about 205 when warmed up and out on the highway. If i'm sitting in hot stop and go traffic it'll get up to about 230. Before I had the radiator recored it would never get above about 205, unless i had low coolant.

What do you guys think?

12-23-2009, 05:54 AM	#1
barcheta Owner Elite Member Join Date: Mar 2004 Location: Maryland Ferrari Life Posts: 1,394 Name: JB	cavatating water pump Does anyone know what the symptoms are? Other than it running hot. I'm probabaly gonna have to replace the pump here with the next major. I've bled off the extra air that seems to accumulate in the system over time but I still seem to have issue with the car getting up above 195 even in cold weather like we've been having. Radiator was recored back in September. still need to replace the t-stat though. Thoughts? Current: 85' GTS QV "I don't sell cars, I sell engines. The cars I throw in for free since something has to hold the engine."

12-23-2009, 09:11 AM	#2
Granucci Owner Elite Member Join Date: Jan 2007 Location: far and away Ferrari Life Posts: 5,052	Waterwetter for a quick solution. but, sounds like you are still getting air in the system? have you bled the air lately? Guide to the Galaxy: Don't Panic Rik -- LAH ! Current: 1990 Mondial T Cabriolet : Red/Tan 1995 456 GT 2+2 : Roso Metalizzato [Fer 311/C] & Tan

12-23-2009, 10:41 AM	#3
Saint Bastage Owner Elite Member Join Date: Jun 2007 Location: Essex Connecticut Ferrari Life Posts: 1,679 Name: Lane	Cavatation is defined as air in the pump housing preventing circulation. If a lack of circulation is the issue, theres a few other things to check from proper bleeding to thermastat failure. I doubt the pump is the issue unless its imploded somehow. Lane 348ts SS #64, Nero on Nero

12-23-2009, 01:23 PM	#4
barcheta Owner Elite Member Join Date: Mar 2004 Location: Maryland Ferrari Life Posts: 1,394 Name: JB	true... I'll throw a new t-stat in like i've been threatening for months now and see if my mystery issues go away. Current: 85' GTS QV "I don't sell cars, I sell engines. The cars I throw in for free since something has to hold the engine."

01-06-2010, 01:13 PM	#6
dinogt4guy Owner Join Date: May 2005 Location: Hewitt, TX. Ferrari Life Posts: 165	Does your heater work? If the stat is stuck it will only blow cold air. Are your fans working? There is nothing like a Ferrari, there never has been and never will be!

12-23-2009, 05:15 PM	#5
Gcalo Owner Join Date: Feb 2006 Location: San Ramon, Calif Ferrari Life Posts: 3,613	I would bet you have an issue with the T-stat. I'd check the drive belt as well.

09-02-2010, 04:59 PM	#8
barcheta Owner Elite Member Join Date: Mar 2004 Location: Maryland Ferrari Life Posts: 1,394 Name: JB	followup to my saga. So pulled and cleaned the water temp gauge. Then I replaced the thermistor with a new one from Ricambi. Then I opened the expansion tank and took a temp reading. The gauge is spot on. While I had the cap off I noticed a fair amount of air bubbles in circulating with the coolant. I changed the oil about a month ago and did not notice any water or any milkyness in with the oil. Do you think I have the early signs of a blown head gasket? I guess the next thing to do in addition to a pressure test is to put a sniffer on the coolant to see if it has any hydrocarbons in it. The car runs about 205 when warmed up and out on the highway. If i'm sitting in hot stop and go traffic it'll get up to about 230. Before I had the radiator recored it would never get above about 205, unless i had low coolant. What do you guys think? Current: 85' GTS QV "I don't sell cars, I sell engines. The cars I throw in for free since something has to hold the engine."

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