TB removal and then some!!!

[Roadster]

More progress tonight....removed the alternator....AC compressor and the belt tensioner....not only do I have easier access to the lower radiator hose connected to the water pump...but I also have quite a cleanup job ahead of me....tons of grease and grine...
Probably going to soak the belt tensioner for a few days.. leary about taking it apart....even though I have the replacement LT1 Dayco part... mine has good spring action and the pulley spins freely for quite a while in either direction....so I may just clean up and reuse....
Thought about the water pump...but I never had any trouble with mine...the one time I was on the highway and saw the temps go up was because of a large bag that got sucked up into the front of the radiator....
I also want to remove the entire thermostat housing....but for the life of me I can't get that hose in the pic disconnected....even with the removal tool.. any suggestions???
Pic #1...a cleanup in order...
Pic #2...grease and grime everywhere...
Pic #3...great access to the water pump hose...
Pic #4....the belt tensioner...
Pic #5...back view...
Pic #6...I need help with this one...it won't budge and I don't want to break anything....20201117_195627.jpg20201117_195635.jpg20201117_200439.jpg20201117_200635.jpg20201117_200642.jpg20201117_202001.jpg

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[Jagdpanzer]

Squirt some penetrating fluid on it a let set overnight. Then break it loose by twisting and pulling.

[Roadster]

Originally Posted by Jagdpanzer

Squirt some penetrating fluid on it a let set overnight. Then break it loose by twisting and pulling.

Have tried...but still no luck....yet...

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[Roadster]

Back cleaning on the LT5... glad I now have the time to get this cleaning done..as it is difficult for me reassemble parts when they're covered with grease and grime... one section at a time... progress being made... also thinking about changing out the water pump since I now have easy access....still can't undo the disconnect hose to the thermostat housing....[emoji848][emoji848]20201208_173341.jpg20201208_173352.jpg20201208_173430.jpg

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[Roadster]

A tale of 3 pumps....water pumps....
As my 94 is still apart I will probably change out my water pump....
Just thinking out loud I have tried to measure the resistance of the bearing and the propeller of each pump.... being determined by rotating the pump by hand...which would probably be a moot point...since when the belt is attached...takes over the speed that the pump rotates regardless of resistance...I would imagine...
The stock pump still attached to the engine with the pulley on...but no belt...rotates freely with hardy any resistance for a few rotations....
The Valucraft remanufactured pump.. I can only hand rotate 1/4 turn...
The GMB which to my understanding is a brand new aftermarket pump... which I can rotate by hand for also a 1/4 turn....but moves more freely and has less resistance to rotate than the Valucraft pump....does this mean anything or have an effect on the operation of the pump....I have no idea...I am just comparing these two pumps to the stock pump....just thinking out loud and deciding which one to use...and both pumps seem to be well built.....[emoji16][emoji16]
Pic #1...Valucraft remanufactured pump...and new pump...
Pic #2...remanufactured pump on top....new pump on bottom.....
Pic #3...original casting part # on remanufactured pump...
Pic #4...new casting...
Pic #5 & 6....backside of both pumps....20201215_133940.jpg20201215_134329.jpg20201215_134419.jpg20201215_134427.jpg20201215_134610.jpg20201215_134616.jpg

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[Roadster]

An interesting observation....getting ready to take the pump off....checkout how close to the top of the original pump the shaft is...it is flush....it is also that way on the new pump....on the rebuilt pump...the shaft is depressed into the shaft cylinder....probably doesn't mean anything...or will effect the performance of the pump...I would imagine...
Pic #1...Original pump....
Pic #2...Top rebuilt pump and depressed shaft..
Bottom new pump and flush shaft just like the original....
20201215_191833.jpg20201215_191740.jpg

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[Roadster]

Taking the water pump bolts out one by one....cleaning them and the placing in one of the new pumps....this particular bolt has oil allover it from the following location....is this normal???20201215_201242.jpg20201215_201612.jpg

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[Roadster]

Another bolt on the rightside of the pump also coated with fluid....20201215_204002.jpg

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[Jagdpanzer]

Tom,
The pulley flange should be pressed on almost flush with the end of the shaft like your old pump. I'd stay away from that rebuilt pump. Belt alignment could be a problem with it.
Looks like oil may have seeped under the timing cover gasket on the first two bolts. There is one bolt on the left side that is threaded into the left cylinder head cam chain cavity is only one that comes in contact with oil. The FSM mentions to use loctite 565 sealant on the threads during assembly.

[Roadster]

Originally Posted by Jagdpanzer

Tom,
The pulley flange should be pressed on almost flush with the end of the shaft like your old pump. I'd stay away from that rebuilt pump. Belt alignment could be a problem with it.
Looks like oil may have seeped under the timing cover gasket on the first two bolts. There is one bolt on the left side that is threaded into the left cylinder head cam chain cavity is only one that comes in contact with oil. The FSM mentions to use loctite 565 sealant on the threads during assembly.

Thanks Phil....they did look to be the same height side by side....just wonder why they pressed on the flange being recessed....
Those 2 bolts were at each opposite ends of the pump....the first wet bolt was on the passenger side and seems to attach just under the head...where the driver's side bolt which was also wet seems to attach to the bottom of head very slightly.. so that must be the cylinder head chain cavity you mentioned....I would assume that the passenger side bolt also be in that same area that you mentioned for the left side ...just curious...
I do have the 565 sealant that you mentioned and also going to use on the new oil cooler lines....
Still awhile before I'm back together...plenty of cleaning to do in that area....
Thanks again....
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