Is there such a thing as a wrong water pump (reverse rotation, for instance) for a 460?

I took my truck to Jiffy Lube to have them flush the coolant system. They told me that the truck was actually spitting coolant back out instead of pulling it into the system.

And now, when the truck runs for longer than 20 minutes it starts barfing coolant up out of the water pump gasket.

Thoughts?

 

Seems to me that if it was'nt doing it before you took it into jiffy screw my vehicle over, than they must've done something to cause it to do it now.

 

Agreed, the jiffy boys screwed it up. The serpentine belted motors usually have a reverse rotation on the water pump, but not in all cases.

 

I suppose I should have specified. The engine is a 1977 460 and it currently sits in a 77 F250.

 

Check the numbers on the pump and compare to a store pump that is for the same application (76, or 77 460).
Lube shops can be a big scam. Saw a program on tv like this: http://consumerist.com/consumer/jiff...ine-176094.php

And it never surprised me. I've been changing my own oil for ages, and this is why. There have been major scams there, and at other automotive repair shops as well. If you don't know anything about cars, you are at the mercy of all these shops, so I say people should get educated. It is like a doctor telling you that you have a disease. You have to just believe him because you are not a doctor. But with the internet, you can look up your symptoms and find alternatives to drugs to treat and cure yourself; Same applies to cars.

 

Does'nt matter what year your vehicle is, if it was fine prior to going into jiffy screw your vehicle over lube, and comes out with problems, they most likely did something to it to cause the problem you are currently experiencing.

 

The serpentine belt engs do indeed turn the pump in reverse rotation to the eng and the v-belt style turns the pump in same rotation as the eng. However the water pump impellor blades are straight cut in both applications and can be used in either direction. There is no difference between a clockwise rotating pump and a counterclockwise rotating pump.

Kurt

 

I know enough to change the coolant in a truck. I took it to JL for a couple of reasons.

1) I had just installed the engine the evening prior and rather than pick up numerous gallons of coolant, adding them to the radiator, and possibly having to drain it back out due to issues, I simply topped the whole coolant system off with water. The truck was stored indoors that evening and then driven to my home and then JL.

2) On the day/evening in question the outside temp was hovering around 15 degrees. I have a garage, but with the recently bolted up glasspacks I decided to take it to JL and have them do it indoors, thus alleviating me of freezing my **** off.

3) I have taken my cars to the JL in question for about 2 years now with no issues. The evening shift supervisor builds engines in his spare time and has on numerous occasions pointed out things that either needed to be repaired or could be improved on my vehicles. When the coolant flush was going on, he thought it was strange that it was being spit out as well. He did not know why it my be occurring either.

I understand there are some crappy oil change stations out there, but I have nothing but good things to say about mine.

What about blocked coolant passages?
Bad thermostat? Think I should just pull it out?

After pulling the water pump there appears to be some sort of deterioration on the right side of the timing chain cover, near the right side coolant passage. I will snap a picture tomorrow, but in the mean time, is there supposed to be some sort of provision for coolant to pass directly from the right (or driver's side) coolant passage to the outside of the timing chain cover, behind the aluminum plate that bolts up behind the water pump?

 

It's the old ploy used by dishonest mechanics since day one.

It's not a defective waterpump.

They filled the radiator to the very top with a mix of coolant/water.

With the cap off, that'll cause ANY radiator to spit out coolant, once the coolant/water mix heats up and expands.

So what happens next?

They'll sell you something you don't need, and then reduce the amount of coolant in the radiator.

Problem solved...except...there WASN'T a problem in the first place!

They also messed with the pump, removing the bolts that retain it to the engine...wiggled the pump around...then tightened the bolts back up...that screwed up the gasket.

If the problem didn't exist before...they caused it.....ON PURPOSE!

D8TZ-8501-B .. Waterpump (Motorcraft PW-162)

Two different gaskets are used.

One from the waterpumps backing plate to the waterpump housing (C8VZ-8507-A), another from the backing plate to the timing cover (C8SZ-8513-A).

The stamped steel backing plate comes with a new pump, but is also available separately: C8SZ-8508-A.

D8TZ-8501-B and related parts fit: 1968/79 429/460 passenger cars / 1973/79 F100/350 / 1975/79 Econolines.

 

Sounds like they hooked up the lines on their machine backwards or didn't follow the steps to do the flush correctly.

If the machine is hooked up backwards it will try to force the coolant into the engine, with the t-stat closed. The excessive pressure will blow out gaskets. If the machine is hooked up correctly, the pressure the machine is producing will open the thermostat, and coolant will flow in, pushing old coolant out, and that is how it gets fluched.

CHECK YOUR OIL for coolant in the oil. if it blew a gasket on the pump so it pukes coolant to the outside of the engine, it could also be puking coolant into your oil pan from behind the water pump / timing cover.

 

Sounds like this might be what happened.

 

Sound like they should pay for the repair. After all it worked fine before they messed with it.

 

In a perfect world, yes. I would expect them to pay. However, the burden of proof resides with me. Seeing as I have already pulled the water pump, it would be impossible for me to recreate the problem. Had I thought of it (or read of it on here) sooner, I would have taken it back to them for an explanation.

Buyer beware, once again.

 

Problems like that are the same as a car accident.

It is not your fault until it's proven to be your fault.


Under any and all circumstances, if you take your vehicle to a service station, and there is a problem when it leaves that wasn't there before, the burden of proof is on the repair shop.


That said, you should never run a motor with straight water for any amount of time, even just a drive to Jiffy Lube could have boiled the water enough to blow a gasket here or there.