sr20 water pump - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

90240sr · 07-15-2003, 12:05 AM

i have a clicking/squeeling noise that sounds like it is coming from my waterpump. i am just finishing my swap i was going to drive to california from washington which is 1200 miles. i was wondering if the car will make it and then will chabge it when i get down their. i have a new radiator and a 14 inch electric fan so i think it should stay cool. Just wondering what you guys thought?

uiuc240 · 07-15-2003, 08:06 AM

how long have you had the motor? how many miles have you put on it with the pump sounding like this? if you just got it and it sounds like this, i would replace it BEFORE the trip. but if you've been driving it for a year, don't worry.

Eric

90240sr · 07-15-2003, 10:39 AM

i am just getting the motr. i havent even drove it yet just about to finsih the swap.

uiuc240 · 07-15-2003, 11:22 AM

then i wouldn't recommend taking that chance. if you know it's the water pump, take the pump out and inspect it for damage. are the fins broken? does it spin easily? does it have excessive play?

Eric

90240sr · 07-15-2003, 11:39 AM

i will go check it out and find out what condition it is in.

Kid Zelda · 07-15-2003, 12:54 PM

It's not uncommon for an sr (espically red top) to come with a bad water pump.
So, drian all the coolant, remove the fan and shroud and all the belts, and then remove the water pump. It will have liquid gasket, so you may want to scrap the edges of it with a scraper, so it'll come out easier.

Inspect the pump for rust or corroded vanes on the assembly, check to see how free it spinds and how much free play it has.

90240sr · 07-15-2003, 02:27 PM

i will probably get my *** kicked for asking this but i will anywhay. What does the waterpump actually do? I know it cools the engine but what part of the engine and how?

Kid Zelda · 07-15-2003, 03:19 PM

Quote:

Originally posted by 90240sr
i will probably get my *** kicked for asking this but i will anywhay. What does the waterpump actually do? I know it cools the engine but what part of the engine and how?

hehe, its cool
check this simple answer
what does your heart do ? Pump, pump blood, to what, through your system, when your system gets happy it pumps more to a specfic area

Unless you're like me-- heartless muthanukka

more tech' answer
The water pump uses centrifugal force to send fluid to the outside while it spins, causing fluid to be drawn from the center continuously. The inlet to the pump is located near the center so that fluid returning from the radiator hits the pump vanes. The pump vanes fling the fluid to the outside of the pump, where it can enter the engine.

The fluid leaving the pump flows first through the engine block and cylinder head, then radiator and back to the pump.

07-15-2003, 12:05 AM	#1
90240sr Zilvia Junkie Join Date: Apr 2003 Location: socal Posts: 318 Trader Rating: (2) Feedback Score: 2 reviews	sr20 water pump i have a clicking/squeeling noise that sounds like it is coming from my waterpump. i am just finishing my swap i was going to drive to california from washington which is 1200 miles. i was wondering if the car will make it and then will chabge it when i get down their. i have a new radiator and a 14 inch electric fan so i think it should stay cool. Just wondering what you guys thought?

07-15-2003, 08:06 AM	#2
uiuc240 Nissanaholic! Join Date: Apr 2002 Location: Naperville, IL Age: 46 Posts: 2,093 Trader Rating: (0) Feedback Score: 0 reviews	how long have you had the motor? how many miles have you put on it with the pump sounding like this? if you just got it and it sounds like this, i would replace it BEFORE the trip. but if you've been driving it for a year, don't worry. Eric __________________ 2002 Mazda Protege5 1989 S13 w/SR20DET (sold)

07-15-2003, 11:22 AM	#4
uiuc240 Nissanaholic! Join Date: Apr 2002 Location: Naperville, IL Age: 46 Posts: 2,093 Trader Rating: (0) Feedback Score: 0 reviews	then i wouldn't recommend taking that chance. if you know it's the water pump, take the pump out and inspect it for damage. are the fins broken? does it spin easily? does it have excessive play? Eric __________________ 2002 Mazda Protege5 1989 S13 w/SR20DET (sold)

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07-15-2003, 10:39 AM	#3
90240sr Zilvia Junkie Join Date: Apr 2003 Location: socal Posts: 318 Trader Rating: (2) Feedback Score: 2 reviews	i am just getting the motr. i havent even drove it yet just about to finsih the swap.

07-15-2003, 11:39 AM	#5
90240sr Zilvia Junkie Join Date: Apr 2003 Location: socal Posts: 318 Trader Rating: (2) Feedback Score: 2 reviews	i will go check it out and find out what condition it is in.

07-15-2003, 12:54 PM	#6
Kid Zelda BANNED Join Date: Oct 2001 Posts: 2,347 Trader Rating: (0) Feedback Score: 0 reviews	It's not uncommon for an sr (espically red top) to come with a bad water pump. So, drian all the coolant, remove the fan and shroud and all the belts, and then remove the water pump. It will have liquid gasket, so you may want to scrap the edges of it with a scraper, so it'll come out easier. Inspect the pump for rust or corroded vanes on the assembly, check to see how free it spinds and how much free play it has.

07-15-2003, 02:27 PM	#7
90240sr Zilvia Junkie Join Date: Apr 2003 Location: socal Posts: 318 Trader Rating: (2) Feedback Score: 2 reviews	i will probably get my *** kicked for asking this but i will anywhay. What does the waterpump actually do? I know it cools the engine but what part of the engine and how?