LT1 Water Pump questions
02-09-2016, 01:22 AM
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LT1 Water Pump questions Hi everyone new here. I have a 1993 TA 5.7 LT1. Just picked it up last year has about 46,000 original miles. So I noticed after low coolant light kept coming on. That I was leaking coolant through the weep hole of WP. So I am in the middle of replacing it.
Carefully avoiding a coolant mess on the opti, I have removed the original one. So looking at the new WP there are two gaskets, and also a little o-ring. So not sure what the o-ring is for (other then putting it somewhere on the shaft) I did some google searching.
I came across a post on the water pump drive seal. Now mine appears to have nothing wrong with it. So I am wondering if in fact that this drive seal needs to be replaced also when doing the WP? Do these things wear out also? And also if someone can tell me about that little black o-ring and where it goes.
Thank you for any answers.
KA
Carefully avoiding a coolant mess on the opti, I have removed the original one. So looking at the new WP there are two gaskets, and also a little o-ring. So not sure what the o-ring is for (other then putting it somewhere on the shaft) I did some google searching.
I came across a post on the water pump drive seal. Now mine appears to have nothing wrong with it. So I am wondering if in fact that this drive seal needs to be replaced also when doing the WP? Do these things wear out also? And also if someone can tell me about that little black o-ring and where it goes.
Thank you for any answers.
KA
02-09-2016, 03:13 AM
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Only thing I can think of is the drive splines for the Waterpump drive... They do get brittle & break!!! The cars are 20+ years old already the rubber Orings need replaced LoL
Also Read the Stickies I think theres a write up on Coolant Light & the Sensor that is associated with it thats in the res of the radiator...
Also Read the Stickies I think theres a write up on Coolant Light & the Sensor that is associated with it thats in the res of the radiator...
02-09-2016, 08:11 AM
#3
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O-rings go on the shafts to keep dirt out of the coupler. Grease the splines.
http://shbox.com/ci/water_pump.jpg
If the water pump drive seal is not leaking, I would not bother it. Any seal wears out eventually.
http://shbox.com/ci/water_pump.jpg
If the water pump drive seal is not leaking, I would not bother it. Any seal wears out eventually.
02-09-2016, 04:51 PM
#6
OP
if you lost enough water from the WP weep hole it is very likely your opti got pissed on..
It would be advised to remove the cap to see if there is any coolant residue inside and clean it out. You likely need to remove the rotor also and the plate under that and the optical timing wheel to see everything but just looking inside initially will show if crud is inside. Recommended to use loc-tite on rotor screws when putting rotor back on
just a problem with the LT1 platform when WP leaks from weep hole.
Like Rob said if your WP drive seal does not leak now it should be OK....but if you have to use any force getting the spline coupler off of it that force will disturb its seal and chances are greater than not, IMHO, the seal will start to leak after you install the new WP
FelPro makes a gasket/seal kit for timing cover sold at most auto part stores for around $12 that has everything (and more) that you need including WP gaskets. New O ring should go on WP & Opti drive splines. Use regular grease on splines/inside coupler
Some also do a hollowed out 90 degree zerk fitting and tube inserted into the WP weep hole to divert any future leaks from WP away from Opti...or convert to a electric water pump
if you lost enough water from the WP weep hole it is very likely your opti got pissed on..
It would be advised to remove the cap to see if there is any coolant residue inside and clean it out. You likely need to remove the rotor also and the plate under that and the optical timing wheel to see everything but just looking inside initially will show if crud is inside. Recommended to use loc-tite on rotor screws when putting rotor back on
just a problem with the LT1 platform when WP leaks from weep hole.
Like Rob said if your WP drive seal does not leak now it should be OK....but if you have to use any force getting the spline coupler off of it that force will disturb its seal and chances are greater than not, IMHO, the seal will start to leak after you install the new WP
FelPro makes a gasket/seal kit for timing cover sold at most auto part stores for around $12 that has everything (and more) that you need including WP gaskets. New O ring should go on WP & Opti drive splines. Use regular grease on splines/inside coupler
Some also do a hollowed out 90 degree zerk fitting and tube inserted into the WP weep hole to divert any future leaks from WP away from Opti...or convert to a electric water pump
02-13-2016, 03:02 PM
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seal Hi everyone new here. I have a 1993 TA 5.7 LT1. Just picked it up last year has about 46,000 original miles. So I noticed after low coolant light kept coming on. That I was leaking coolant through the weep hole of WP. So I am in the middle of replacing it.
Carefully avoiding a coolant mess on the opti, I have removed the original one. So looking at the new WP there are two gaskets, and also a little o-ring. So not sure what the o-ring is for (other then putting it somewhere on the shaft) I did some google searching.
I came across a post on the water pump drive seal. Now mine appears to have nothing wrong with it. So I am wondering if in fact that this drive seal needs to be replaced also when doing the WP? Do these things wear out also? And also if someone can tell me about that little black o-ring and where it goes.
Thank you for any answers.
KA
Carefully avoiding a coolant mess on the opti, I have removed the original one. So looking at the new WP there are two gaskets, and also a little o-ring. So not sure what the o-ring is for (other then putting it somewhere on the shaft) I did some google searching.
I came across a post on the water pump drive seal. Now mine appears to have nothing wrong with it. So I am wondering if in fact that this drive seal needs to be replaced also when doing the WP? Do these things wear out also? And also if someone can tell me about that little black o-ring and where it goes.
Thank you for any answers.
KA