Always replace water pump with timing belt?

Joined
26 May 2006
Messages
11
Location
Palos Verdes, Ca.
I'm having the timing belt replaced on my (new to me!) 93, with 55,000 miles tomorrow, as apparantly this had not been done at the six year point or beyond. My question is: is it really necessary to replace the water pump at the same time? Can it be checked for obvious wear/leakage? The dealer tells me that the service will be over $1600 for both, but only $1000 or so if they just replace the timing belt, and I could stand to save some money!

JY
 
I would replace it. It's one less headache to worry about. You might save $600 now, but if your water pump goes bad, you're going to be spending $1600 over again.
 
The new pump is different. It is a better design. If you have an original pump, this is not optional IMO. You should change it:).

JMO,
LarryB
 
JYRed said:
Ok, thanks guys. I'll bite the bullet and tell my wife I have no idea where the money went!

Jy
SEE IF WIFE DIDNT KNOW OBOUT CARS U COULD SAY:
HONEY THE WATER PUMP FAILED AND I HAVE TO REPLASE IT IN ORDER TO DRIVE THAT BEAUTY AGAIN!!!!!!!!!!
SHE: DO IT!!!!!!

I DONT KNOW IF WORKS FOR YOUR BUT IT DOES FOR MY!!!!
HAHAHA
 
Larry Bastanza said:
The new pump is different. It is a better design. If you have an original pump, this is not optional IMO. You should change it:).

JMO,
LarryB

So when I got my engine rebuilt a few years ago, and a new w/p and t-belt were installed, they should be of the new design correct?
If so, would the schedule for having them changed again be different than it was originally?
 
DIMITRIS said:
SEE IF WIFE DIDNT KNOW OBOUT CARS U COULD SAY:
HONEY THE WATER PUMP FAILED AND I HAVE TO REPLASE IT IN ORDER TO DRIVE THAT BEAUTY AGAIN!!!!!!!!!!
SHE: DO IT!!!!!!

I DONT KNOW IF WORKS FOR YOUR BUT IT DOES FOR MY!!!!
HAHAHA


that's right, lie.....or grow some balls. Your choice.


































J/k:biggrin:
 
92NSX said:
So when I got my engine rebuilt a few years ago, and a new w/p and t-belt were installed, they should be of the new design correct?
If so, would the schedule for having them changed again be different than it was originally?

I am sure you have a new pump. The design changed in 1997. Following the maintenance schedule or not has to be a personal choice. The bottom line is the pump list is about $250 list price. The pricing for this job ranges from $1200-1600, so it would be your call if you replaced it again.

I personally would do it whenever I change the belt, being intimately familiar with the labor involved;).

My $.02
LarryB
 
If you decide to replace the water pump, you have to replace the following:

Lower Timing Belt Cover - 11810-PR7-A02
Grommet - 11816-PR7-000

Here's the bulletin number: B99-0008

Chris
 
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I strongly recommend that, at the same time, you have them replace all the 13-year-old hoses in the cooling system. It's good preventive maintenance. It's a lot easier to do them now, then to have one fail on the road one day...
 
ohshytitschris said:
If you decide to replace the water pump, you have to replace the following:

Lower Timing Belt Cover - 11810-PR7-A02
Grommet - 11816-PR7-000

Here's the bulletin number: B99-0008

Chris

The grommet yes, the cover is optional, since you can drill a 9/16 hole in the cover, install the $5.00 grommet and you are good to go.

HTH,
LarryB
 
Larry Bastanza said:
The grommet yes, the cover is optional, since you can drill a 9/16 hole in the cover, install the $5.00 grommet and you are good to go.

HTH,
LarryB
Who has pictures of how/where to do this? How about a template?:smile:

Considering doing belt myself after shocks
 
NSXBill2 said:
Who has pictures of how/where to do this? How about a template?:smile:

Considering doing belt myself after shocks
I'm not a mechanic (like Larry B) and I don't play one on television. However, my understanding of the hole is for the weep tube (more specifically, to prevent it from dripping on the timing belt), so my layman's guess is that you would want to drill it where the tube comes down.
 
Larry Bastanza said:
I am sure you have a new pump. The design changed in 1997. Following the maintenance schedule or not has to be a personal choice. The bottom line is the pump list is about $250 list price. The pricing for this job ranges from $1200-1600, so it would be your call if you replaced it again.

I personally would do it whenever I change the belt, being intimately familiar with the labor involved;).

My $.02
LarryB

I looked at the FAQ section about the time/mileage to change the t/b and w/p. It only gives one set of numbers so is it safe to assume that all years had the same #'s or does the updated style of those parts have a longer life expectancy?
 
92NSX said:
I looked at the FAQ section about the time/mileage to change the t/b and w/p. It only gives one set of numbers so is it safe to assume that all years had the same #'s or does the updated style of those parts have a longer life expectancy?
I haven't heard anyone post a definitive answer, but I think that's because there isn't one. I can tell you my opinion, which is that it doesn't matter all that much why they changed the recommended interval. Life expectancy isn't a single number, so that the chances of a belt lasting six years is 100 percent and lasting six years and one day is 0 percent. Rather, it's a range of probabilities. If you don't hit 90K miles, the chances of the timing belt failing after six years is extremely low, and the chances of the timing belt failing after seven years is still extremely low (although it's probably ever so slightly higher than after six years). However, this probability increases over time, and at an increasing rate. We've recently heard two reports of failed original timing belts on cars that haven't hit the mileage interval. So the real question becomes, what's your comfort level? If you want to be absolutely as safe as possible, change it after six years or less. If you want to be almost as safe, you could wait until you hit seven years. But each additional year increases the chances that your unchanged belt will fail, which can be very, very expensive. Maybe you think you can go seven, eight, even nine years or more, and it's your car and your decision whether or not to do so... but at some interval you will be kicking yourself afterwards if the belt fails and you face an expensive repair. I recommend changing it at least six months before you reach that interval. :D
 
It has been about 2-3 yrs(have to look for sure) since the work was done and only about 15k miles since then. I would certainly attain the years before the mileage for maintenance of it.
 
nsxtasy said:
I haven't heard anyone post a definitive answer, but I think that's because there isn't one. I can tell you my opinion, which is that it doesn't matter all that much why they changed the recommended interval. Life expectancy isn't a single number, so that the chances of a belt lasting six years is 100 percent and lasting six years and one day is 0 percent. Rather, it's a range of probabilities. If you don't hit 90K miles, the chances of the timing belt failing after six years is extremely low, and the chances of the timing belt failing after seven years is still extremely low (although it's probably ever so slightly higher than after six years). However, this probability increases over time, and at an increasing rate. We've recently heard two reports of failed original timing belts on cars that haven't hit the mileage interval. So the real question becomes, what's your comfort level? If you want to be absolutely as safe as possible, change it after six years or less. If you want to be almost as safe, you could wait until you hit seven years. But each additional year increases the chances that your unchanged belt will fail, which can be very, very expensive. Maybe you think you can go seven, eight, even nine years or more, and it's your car and your decision whether or not to do so... but at some interval you will be kicking yourself afterwards if the belt fails and you face an expensive repair. I recommend changing it at least six months before you reach that interval. :D

yeah...what he said:cool:
 
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