Dino DIY - Water pump removal USA car with A/C

Crankshaft pulley bolt doesn't look like it would relinquish its long-time resting spot without a struggle!

 

Double-nut the studs and unscrew them (might need to make some real thin jam nuts for this). I'm not sure you will get the pump out even then because of interference from the impeller.

To remove the crank pulley you will likely need to machine down a socket to fit in the tight recess.

This is one I've modified (and modified again) for Ferrari crank pulleys. I think it used to be a 36mm socket. I'm not sure if it's the one you need but you get the idea.
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I believe I just used a 6-point Craftsman 36mm socket with short extension and an impact wrench to take the dampener bolt out. Should slide out OK or use a puller if necessary. Good time to check/replace the seal and check for grooving where the seal rides on the dampener pulley.

 

Scott,
I have had my pump out a number of times with no problem. I looked back at my Saga 051030 pictures to see what was different. http://ferrarichat.com/forum/showthread.php?t=80948&highlight=051030
Second picture. My crankshaft pulley is quite different. There are two opposite flats on the pulley! Just enough to let the pump get out. I suggest you just bite the bullet and pull the pulley. A standard socket fits mine just fine. My pulley has been off a couple of times and not difficult. Suggestion of looking at oil seal is a good one. Might see about milling a pair of flats on the pulley while it is out. Exactly the same size so pulley stays ballanced. No larger than necessary. There will be another time if you drive the car a lot. Not too good an idea to play with the studs if you don't have to. Good luck.
John

 

Why not grind a flat on his pulley like yours? That would solve the prob for time eternal.

 

If you have the socket and impact wrench to get the bolt loose the pulley should come right off.

Why bastardize the pulley? You probably won't have to do this again for years.

If you do, just remove the pulley again. It doesn't get much easier.

 

Scott,
Impeller wants to clear back of housing by 0.020-0.040". With the gasket, pump works fine and lots of clearance. My Dino is #04504 and had air. Just different pulley. Hard to figure the way Ferrari mixed and matched parts. Just have to be willing to learn every time you touch anything.
John

 

it probably would be easier to remove the pulley. However, I don't hthink getting the studs out would be too hard ( only two of em)...spray it wit PB blaster first & give it a shot.

 

Scott, do you see a mechanical improvement in the new pump? Or...
Regards, Alberto

 

Gents,
I installed one of Jacques' pumps on my Euro/non-air car & am very pleased. Of course, it was part of a major cooling system freshening, so I can't specifically evaluate the pump. The project included replacing all of the hoses (long ones, too), new S/S water pipes, re-core of steel-finned FIM rad to copper-core (maintaining original tanks, straps, brackets, connectors, bleed fitting & fan switch; losing considerable weight, or vastly improving efficiency), inspection/cleaning/lubing of stock fan motors, elimination of a 'ton' of paint/overspray/undercoating on the stock aluminum 3-blade fans (less mass to spin, now), addition of the foam barrier/seal to underside of 'hood,' inpection of t-stat & sensors and cleaning of the heat exchanger honeycomb (considerable debris restricted water flow). I'm currently running filtered water & 2 bottles of Water Wetter, but will shortly swap out a gallon of this blend for anti-freeze. The shop that did my radiator is owned & operated by a husband/wife team. They've been in the business for years & have dealt with industrial & farm applications, too. They recommend only one gallon of coolant for our clime, where ambient temps generally range from 50F to 82F, with infrequent excursions into the barely freezing realm and short-duration bursts into the nearly-100 degree region.

At any rate, the fruits of our labor are plentiful. I've driven the Dino on a couple of cool days and a couple of the rare warmer (90F) days--in city traffic & on the freeway. The water temp comes up more quickly to normal range, the fans kick in right on cue & do their job well, and a pleasant side-effect is the faster warming of the oil...heat exchanger once again multi-tasking...to normal range (all the sooner to actuate the loud-pedal through its entire range!).

OK. There you have it. More info than you asked for, Alberto. However, I believe it's safe to say that the new & improved MaseratiSource pump is a worthwhile addition to the cooling system.

As for the clearance between the water pump & pulley, mine was no-factor. I lucked out there!

I'll post some pics shortly; you won't believe the condition of the seemingly original radiator!
Coop

 

I have had Jacques' water pump for awhile now, I have not started on the motor rebuild yet, so no clue on the pulley... Now, I am extremely pleased in knowing that the pump is improved. Cheers Jacques!
Regards, Alberto