when deleting thermactor pump

[1990LTD]

Can you just cap the vac line from the cruise control at or near the servo?

[86VickyLX]

Can you just cap the vac line from the cruise control at or near the servo?

Yes. That hose goes to a T behind the engine to the vac tree, and to the servo. Just remember now you'll have less vacuum to the cruise, so it may shut off on you on a steep incline...

[gadget73]

when I did mine, I chased that hose back to the tee, and just removed it, the tee, and all the related stuff. I seem to remember a check valve in the hose that gets deleted. I think I used that as a connector in place of the tee so the cruise servo now has a straight vacuum feed from the tree.

[1990LTD]

Yes. That hose goes to a T behind the engine to the vac tree, and to the servo. Just remember now you'll have less vacuum to the cruise, so it may shut off on you on a steep incline...

Cool. Cruise on a steep incline is for suckers anyway.

[86VickyLX]

Cool. Cruise on a steep incline is for suckers anyway.

[1990LTD]

[1990LTD]

also, the hose doesn't actually connect to vacuum, does it? just runs to that thing behind the motor and then to the cruise servo to provide vacuum to it when it's running? i don't have the car here to look at unfortunately. i'm gonna pull all of this stuff out tomorrow when my friend is putting the water pump and brackets, radiator etc back on (something beyond my skills at this point i think, i'd put the brackets on wrong more than likely)

[1990LTD]

hm.....i am half tempted to yank the fan from my aero and install it in place of the pump driven fan and shroud from the 90. wonder how they measure up..i'll check tomorrow

[86VickyLX]

also, the hose doesn't actually connect to vacuum, does it? just runs to that thing behind the motor and then to the cruise servo to provide vacuum to it when it's running? i don't have the car here to look at unfortunately. i'm gonna pull all of this stuff out tomorrow when my friend is putting the water pump and brackets, radiator etc back on (something beyond my skills at this point i think, i'd put the brackets on wrong more than likely)

It does connect to vacuum. There's a check valve on it that allows vacuum to be pulled through to the smog pump, but not the other way around. Run a hose from the servo to the thing behind the engine and you'll be fine. No that mechanical fan and shroud won't fit.

[1990LTD]

will do. thanks. i think the only play was from the water pump pulley, i've got the pump here and it's pretty fucked.

i recently started hearing some noise at the front of the motor, but the clutch seemed fine.

[86VickyLX]

will do. thanks. i think the only play was from the water pump pulley, i've got the pump here and it's pretty fucked.

i recently started hearing some noise at the front of the motor, but the clutch seemed fine.

Noise could be the bearing in the water pump. Spin it, how does it feel? It should have resistance to it, but it should be smooth.

[1990LTD]

rough, grinding almost but i can't hear anything. big difference between my hand and the crankshaft spinning it though.

if i lay the pump flat on the floor there's some play in the shaft as well

[86VickyLX]

rough, grinding almost but i can't hear anything. big difference between my hand and the crankshaft spinning it though.

if i lay the pump flat on the floor there's some play in the shaft as well

That's the noise.

[1990LTD]

are these things aluminum? i remember my 88 not being aluminum but they probably changed at some point. i don't know if they're gonna take it back for a core charge or not.

[86VickyLX]

are these things aluminum? i remember my 88 not being aluminum but they probably changed at some point. i don't know if they're gonna take it back for a core charge or not.

There are 2 pumps, the heavy duty one, which is iron
and the other one aluminum. The tall tell sign is the heavy duty has 2 extra bolt holes. That makes 3 in total around the water jackets. While the aluminum non HD pump has only 2. Your timing cover has the threads for the 2 missing bolts. So just get 2 bolts if you got the heavy duty one, it's much better than the other.

They will take it as a core. It's original equipment so don't worry about it. I gave autozone a 2g alternator for a core for a 3g alternator.

I take it this is a remanufactured pump?