Torn seal, failed water pump, back on the road

Oil from torn seal

When my new water pump failed, the ground metal from the water pump tore newly installed seal into bits, causing another oil leak.  Here's what I saw when I removed the pump from the car, over on the right.

Having replaced the very same seal before, I wasn't at all intimidated this time around. Out came the seal puller and in one swift hand-motion, I lost my grip and whacked the back of my hand against the radiator.  I was wearing my gloves, but they don't offer much protection for the back of the hand and it seems that's the most sensitive part. A little more fiddling and out came the seal. 

Torn seal

The tearing was complete, a replacement was necessary.  Getting a clear picture wasn't easy, because it was difficult to keep the background and foreground in focus, but here it is over on the left.  While the old seal apparently wore so that it wasn't keeping a tight grip on the camshaft, this one was completely compromised.  Just like the last time, I put a thin coat of oil on the seal and worked it over the camshaft, using my Craftsman Seal Seating tool (right) and a few taps from a plastic dead blow hammer to make ensure the seal was seated.

Re-attaching the water pump

New pump installed

Once the seal was back in place, I re-attached the three 8mm bolts holding the new water pump loosely and then the center 13mm bolt loosely, then tightened the outer bolts and then put more force on the inner bolt.  I'm not sure why this is the process, probably to make sure the impeller is correctly centered in the housing.  The final torque specification for the center bolt is 18 in/lbs (25nm) which is not much more than hand tight and on the lower end of my torque wrench's scale.  It didn't feel like much so I gave the bolt an extra 1/2 turn, as I wasn't sure if my wrench was accurate and I didn't want the impeller to stop working if the bolt wiggled loose.  But I didn't want to overtighten either as that could crush the seals around shaft keeping the fluid where it belongs.

All back together, recycling the coolant

When I took things apart, I used a basin to catch the coolant fluid in hopes I could use it again and not have the hassle of taking it to the disposal center (c'mon, we don't put chemicals like this down the drain, that would be uncivil) whilst saving a few bucks.  Before pouring the coolant back in the car, examination showed bits of dreck floating about, dreck I'd rather keep on the outside of the cooling system.  My solution was to put a coffee filter in the funnel and have that catch the chaff; however the filter was a bit too fine and I was a bit too impatient. 

The filter was replaced by a paper towel, and in about 10 minutes, all of the captured coolant was back in the system.  I was thinking that the ethylene glycol molecule's size was the cause of the poor flow through the filter, but I was wrong by a factor of 1000.  Our friend C₂H₆O₂ is about half a nanometer and a the average pore size of a coffee filter is about 50 microns, so the chemical should have passed through like a bee through an open window, or air through a residential screen, even if some of the molecules clung together in the filter's mesh.  The slow speed was probably the filter doing it's job removing nasties from the fluid.

I thought I was being paranoid with the filter, but here's a picture of what remained in the pan after filtering.  And, yes, the pan was clean before it caught the fluid.  When pouring the liquid into the filter, I was careful not to disturb the sediments, as I didn't want the filter to break, or more likely, clog.

Job being done, I'm hoping that two's a charm when it comes to water pumps.  It's been about 200 miles on the new pump with no problems, so I'm not worried about the torque of the impeller bolt, or at least I'm not worried that much.

Water Pump, Encore!

When your correspondent last wrote, my Freestyle stranded me on the way home from the Pittsburgh

Frownie

airport.  Something in the cooling system failed (I was guessing the thermostat, which turned out to be half true!) and when I tried to slowly return home, stopping to let the engine cool, my wife guilted me in calling a tow truck and having her meet me for breakfast.  I came to a stop at King's, a chain started by Hartley King, an offshoot of his fuel distribution business.  Kings always played second-fiddle to Pittsburgh's dominant family chain "Eat 'n Park", despite having both better breakfast and desert menus.  For years, as a counter to Eat 'n Park's "Smiley" cookie, King's had the Frownie -- a stroke of marketing brilliance to counter the Smiley -- a brownie with a no-so-menacing frown.  But it went deeper than the frown: the earth-tone brownie matched the Kings décor to the tee, the fudgy bites were more substantial than the nearly flavorless Smiley cookies, like the food at Kings versus E'n'P.   Kings has since been purchased by some outfit on the west coast and is losing it's quirkiness, the menu isn't on the placemat anymore, the Frownie retired to mascot Florida and decidedly 70's faux wood Formica décor replaced by cleaner and brighter tiles and paint.

I didn't have the chance to look into the problem that day and some home things kept me from tearing into the engine for about a week.  When I did get to seeing what was happening, I had the following suspects, in my order of probability:

1. Blockage in radiator
   This would keep the coolant from flowing, since I was not getting heat in the cabin, this would sort of make sense, but I would have expected some coolant flow from the engine to provide some heat.
2. Thermostat valve failure
   I replaced this already, but it could have been the problem, maybe a discount part failed?
3. Water pump
   Least likely, since it was just replaced.

I'm thinking #1 as the problem, since I replaced the thermostat and water pump.  But, the nature of the symptoms (over heating engine, no output from heater) lent itself to being a failed water pump, despite it being replaced just a few months back.  I started by removing the various pipes from the cooling manifold (using a basin to catch the fluid) and to my surprise, saw some fresh oil dripping on the starter, along with a whiff of the "oil and coolant" smell.  Something interesting is afoot, just not sure what.

Note oil drip on starter...

  Off came the water pump.  Flipping it over, I see oil leaking from the weep hole of the pump.

This was odd, because water pumps shouldn't contain any oil.  Then, on close inspection of the part, the nature of the problem became more obvious, looking closely where the pump interfaced with the cam shaft:

Then, it can back to me...  When I was pulling out of the airport, I heard a squeaking/grinding noise, I that was this part of the pump breaking and being reduced back to the metal powder from which it was formed, in the process tearing the seal around the camshaft, permitting the oil into the pump shaft.  Here's what the seal looks like in the engine:

At this point, I needed to replace the water pump and seal.  But the thermostat was OK, right?  No it wasn't, so that will need to be replaced as well.  What makes this more frustrating is my smugness over having the luxury of time to do the research and wait for delivery.  At least I have practice!

Overheating and stranded

I was out of town for most of last week, at a company site in CA.  When I travel to our offices in California, I usually take the early AM flight Monday from PIT to SFO and drive to San Jose.  This flight is usually at 100% capacity.  However, this week, I departed on a Tuesday and found myself in a row with an unoccupied middle seat, and on the way back on the red-eye Friday, same seating arrangement!  Unusual. What was also unusual was the pair of basset hound "emotional support" animals waiting to board the plane I just departed (was too tired to get a picture, sorry!) on Saturday morning.  We have a basset hound, they're great dogs, but they smell, shed and drool more than the average traveler.  While the bassets display excellent temperament, they tend do want to do their own thing and will put their weight into getting their way, so I can't imagine one being on a lap and compliant for even a short flight.

Overheating

When I returned to airport lot, I jumped into the car and made it about 5 miles down the highway to discover the engine heat climbing.  I also heard a bit of a weird noise coming from the engine, a high pitched whine.  I stopped on the highway's shoulder, let things cool-off then got off the highway and stopped again at a gas station, then at a McDonalds, Rite-Aid, Golf course -- each time the temperature made it too close to the red-line for me to be comfortable.  After 2 hours, traveling about 18 miles, I stopped at the King's in Monaca called my wife to meet me for breakfast and then AAA for a tow home. 

I didn't want things to get too overheated, as that could cause the a head gasket to break or worse, the block to crack.  Since I hadn't called AAA in a while for a tow and I wasn't that far from home, this was covered under the cost of my membership.

By this time, I was tired and just a little more than frustrated.  This would be the first time the car left me stranded.  At least I was close to home and could easily get to help.  But still.

There's a few things this could be:

1. Water pump
   The engine was overheating because coolant wasn't circulating through the system.
2. Thermostat
   Coolant was being blocked from flowing through the system, resulting in poor cooling.  Maybe not the problem, in many cases the coolant will still circulate through the heater core before the thermostat opens... But I wasn't getting heat, so maybe not.
3. Radiator
   A blocked Radiator can result in decreased cooling efficiency. 
4. Coolant leak
   Could be a problem... But I found that the system contained lots of coolant and the cooling system was under pressure, so I think I can cross this one off the list.

Recall, that I replaced the water pump and thermostat already.  Could one of the new parts failed?  It would seem so, but that would be a real bummer.  There's some interesting things of note I'm mulling over:

• Heater wasn't working.  This could mean a the pump was not circulating the coolant or the thermostat wasn't opening to let the water circulate through the heater core
• A squeaking noise was heard as I was exiting the airport.  I thought it was the wheel, but maybe the water pump?

I have some yard work to do, so won't be able to tackle this problem in the next day or two. Considering these parts have been replaced once already, I'm not that happy about having to do the job again.

Despite the car problems when I got home, the trip was great.  One of the great things about the San Jose area: all of the great food around the area! The people at the office might think the various Korean hot pot and Pho places are pedestrian, but it's a delightful culinary break for me.  One of the new things I tried was persimmon, a crisp fruit with what I can describe as a sweet, crunchy pumpkin taste.  There's a much musher variety of persimmon as well, but the firm variety makes for the best out of hand snacking.  Can't find any in these parts, so I'll have to bring more back from my next trip.

Happy Halloween! Fixing the Fan Speed Control

Boo!

The Freestyle has passed an important milestone in my household.  Not in dollars spent or miles driven, something more substantial.  My wife likes the car enough to start decorating it.  At first, she refused to be a passenger, in fear of an immediate breakdown or immolation (I feel the need to point out I spelled that word correctly the first try), but after seeing it not stranding me the last few months, I think she's warming up to our newest car -- plus, I think it keeps me in the garage and out of her hair.  I'm told this car is "cooler" than our minivan; which I don't understand because our minivan has a TV.

Fan Control

I'm on to fixing the AC system and part of the job is fixing something that didn't work from day one of my ownership experience: the fan speed control.  The controls offered two options: nothing or high.  Not a big deal, maybe an annoyance at the most.  Once the AC has been recharged (I've replaced all of the parts, just recharging the system remains!) it will be nice to have some control; same for the heat in the looming winter.

Replacing the part was easy enough.  On the passenger's side, slide the seat all the way back to give yourself room to work.  Then, remove a panel covering the fan by pulling out two plastic rivets:

The part in question can be found close to the firewall and center console.  Remove the wiring connector, spin out the 8mm screws.  The part will just fall out.

There's not much clearance and I found the wiring kept getting in my way, I tucked it into the center console.  Insert the new part, making sure it's oriented with the connector release facing you, the connector has some pegs to ensure a correct fit -- there's two screws and two alignment pegs -- twist things back up to "hand tight" and that's about it.  The wiring connector will fit only one direction and returning the protective cover involves pushing the plastic retainers back into place. Done!

The malfunctioning fan is a common failure, the part at fault being the fan speed resistor, which regulates the amount of electricity to the fan, which then controls how fast the fan spins.  This this part works by restricting the flow of electricity, that extra energy become heat, explaining why this component can be found close to the fan it controls, as that provides some cooling.  In this part of the world, something hot will condense the moisture out of the air, which probably contributes to the part's demise.

Old part, note bubbling

Coating the part with some moisture-resistant material performs the important job of keeping wiring on the part from making contact in such a way a short-circuit occurs, which looks like what happened on the failed part.  Notice the bubbling close to the connector, it looks like some water worked its way under the coating; guessing the heating and cooling cycles resulted in the coating separating from the sub-strait thus spoiling the circuitry.

A Small Find

Found the Owner's Manual!

When I removed the panel covering the fan, out fell the original owner's manual for the car and a black Aldi job application.  I'm guessing the book fell from an overloaded glove compartment above.  For the first time I think ever, I needed to consult the owner's manual to find the neutral override switch and needed to use Ford's (excellent) on-line manual service.  While I might never look at it again, It's nice having the owner's manual for completeness's sake.  I'll give the job application to my youngest kid so nothing goes to waste.

Red Bentley

On my way over to Wal-Mart to get some provisions, and what did I see, but a Continental GT parked off by itself, so I decided to give it a little company whist shopping. 

While pulling into the spot, I realized that I didn't have the best idea of where the hood ended on my car.  I made sure I kept my distance between our bumpers and got this picture before heading into the store.

BTW: the AC is mostly replaced, we're in good enough shape to be on the road, lots of notes and pictures I'm organzing into a few upcomming articles -- learned more than I expected about AC systems.