LS1 Water Pump, How difficult is it to replace?
Thread Starter
Registered User
Joined: Dec 2003
Posts: 1,457
From: Seattle, Washington
LS1 Water Pump, How difficult is it to replace?
How difficult is it to replace the water pump on an LS1?
Oh and are those electronic water pumps really worth it? I hear they don't last as long?
Oh and are those electronic water pumps really worth it? I hear they don't last as long?
Registered User
Joined: Sep 1998
Posts: 8,319
From: US 1 Mile Marker 52 in the Florida Keys
there is a write up on ls1howto i think...its for an electric unit, but the install should be the same other than wiring.
as for the electric
they flow more at idle AND at top end than the stock pump
they last for something like 3000hrs...which is equivalent of 150K miles at an average speed of 50mph
they free up 10hp or so
problem is they cost ALOT
as for the electric
they flow more at idle AND at top end than the stock pump
they last for something like 3000hrs...which is equivalent of 150K miles at an average speed of 50mph
they free up 10hp or so
problem is they cost ALOT
Thread Starter
Registered User
Joined: Dec 2003
Posts: 1,457
From: Seattle, Washington
there is a write up on ls1howto i think...its for an electric unit, but the install should be the same other than wiring.
as for the electric
they flow more at idle AND at top end than the stock pump
they last for something like 3000hrs...which is equivalent of 150K miles at an average speed of 50mph
they free up 10hp or so
problem is they cost ALOT
as for the electric
they flow more at idle AND at top end than the stock pump
they last for something like 3000hrs...which is equivalent of 150K miles at an average speed of 50mph
they free up 10hp or so
problem is they cost ALOT
Registered User
Joined: Jan 2005
Posts: 135
From: Germany
Can I get a link to that writeup?
Thread Starter
Registered User
Joined: Dec 2003
Posts: 1,457
From: Seattle, Washington
Registered User
Joined: Dec 1999
Posts: 2,022
From: MD
Thread Starter
Registered User
Joined: Dec 2003
Posts: 1,457
From: Seattle, Washington
Registered User
Joined: Dec 1999
Posts: 2,022
From: MD
Just follow the directions in the link above. It really is quite easy, and you'll agree when once finishing the job. Just make sure that the cooling system is completely bled, and if you have any problems, post up!
Registered User
Joined: Sep 1998
Posts: 8,319
From: US 1 Mile Marker 52 in the Florida Keys
"How much more do electric ones cost over stock ones? They wanna charge me $150 just for a remanufactured one..."
the mezerie electric unit is somewhere in the $550 price range....all for 10hp and better cooling.
sounds like you just want the reman unit....if you're worried about pulling a TB (just a few bolts and some sensor wire clips) i wouldn't start advising you to do the install and wiring needed for the electric ones.
the mezerie electric unit is somewhere in the $550 price range....all for 10hp and better cooling.
sounds like you just want the reman unit....if you're worried about pulling a TB (just a few bolts and some sensor wire clips) i wouldn't start advising you to do the install and wiring needed for the electric ones.
Registered User
Joined: Dec 1999
Posts: 2,022
From: MD
Neither are really notorious for failure, but the oil pumps are prone to failure more often on the earlier models. A lot of people have gone 200,000 miles on the stock oil pump in the early engines, while some fail under 50,000 miles even. Regardless, the later oil pump designs are better.
The water pumps are like every other water pump on every manufacturers vehicle - the most common problem is a minor leak (at the weep hole) that comes from lots of usage.
The water pumps are like every other water pump on every manufacturers vehicle - the most common problem is a minor leak (at the weep hole) that comes from lots of usage.
Registered User
Joined: Mar 2002
Posts: 499
From: Miami, Fl USA
Neither are really notorious for failure, but the oil pumps are prone to failure more often on the earlier models. A lot of people have gone 200,000 miles on the stock oil pump in the early engines, while some fail under 50,000 miles even. Regardless, the later oil pump designs are better.
The water pumps are like every other water pump on every manufacturers vehicle - the most common problem is a minor leak (at the weep hole) that comes from lots of usage.
The water pumps are like every other water pump on every manufacturers vehicle - the most common problem is a minor leak (at the weep hole) that comes from lots of usage.
Registered User
Joined: Dec 1999
Posts: 2,022
From: MD
