prestone leak
#1
prestone leak
Hey, new to the forum
Just got a 2001 disc 2
Of course it is pissing prestone from the back of the heads, I am completing every couple of days and so far it worked, I am planning on fixing it once the temps outside get better..
Here are my questions?
1 anything special about the head bolts? I am thinking of using arp, if they don't have one they can make it.
2 what is causing the heads to leak? should I bother resurfacing the heads?
3 is the block cast iron or aluminium?
4 are there any aftermarket exhaust manifolds available, stainless steel???
Tx
Just got a 2001 disc 2
Of course it is pissing prestone from the back of the heads, I am completing every couple of days and so far it worked, I am planning on fixing it once the temps outside get better..
Here are my questions?
1 anything special about the head bolts? I am thinking of using arp, if they don't have one they can make it.
2 what is causing the heads to leak? should I bother resurfacing the heads?
3 is the block cast iron or aluminium?
4 are there any aftermarket exhaust manifolds available, stainless steel???
Tx
#2
#3
If it is caused by the blots then i would replace the oem ones with arp..
#4
#5
The engine never overheated, it started leaking about a year ago, every 2 days I have to add some prestone to the tank, other than that it drives just like before.
#7
2 what is causing the heads to leak? should I bother resurfacing the heads?
From the little bit of research I have been doing on these engines, this is a very common problem. I think it mostly comes back to the cyl heads warping from heat. The head bolts are a torque to yield design and can not be re-used, so buy new. I'm not sure about using different brands, or studs as the torquing procedure requires an initial torque of 15 ft lbs, then two 90 degree turns to get to the final torque. If you change the bolt it will change the clamping load, and this procedure may not work properly...
#9
Many things cause them to blow head gaskets, the number one cause is the coolant.
Dex-Cool is corrosive.
http://www.sancarlosradiator.com/dex-cool_pics.htm
http://www.sancarlosradiator.com/dex-cool.htm
The DII came with Dex-Cool from the factory.
Land Rover says to change the engine coolant in the Discovery Series II every 45,000 miles or 36 months, whichever is sooner.
Why? Its a 150,000 mile 5 year coolant.
They must have known something.
How many people do you think actually change their engine coolant in their DII every 3 years?
Dex-Cool is corrosive.
http://www.sancarlosradiator.com/dex-cool_pics.htm
http://www.sancarlosradiator.com/dex-cool.htm
The DII came with Dex-Cool from the factory.
Land Rover says to change the engine coolant in the Discovery Series II every 45,000 miles or 36 months, whichever is sooner.
Why? Its a 150,000 mile 5 year coolant.
They must have known something.
How many people do you think actually change their engine coolant in their DII every 3 years?
#10
Many things cause them to blow head gaskets, the number one cause is the coolant.
Dex-Cool is corrosive.
http://www.sancarlosradiator.com/dex-cool_pics.htm
http://www.sancarlosradiator.com/dex-cool.htm
The DII came with Dex-Cool from the factory.
Land Rover says to change the engine coolant in the Discovery Series II every 45,000 miles or 36 months, whichever is sooner.
Why? Its a 150,000 mile 5 year coolant.
They must have known something.
How many people do you think actually change their engine coolant in their DII every 3 years?
Dex-Cool is corrosive.
http://www.sancarlosradiator.com/dex-cool_pics.htm
http://www.sancarlosradiator.com/dex-cool.htm
The DII came with Dex-Cool from the factory.
Land Rover says to change the engine coolant in the Discovery Series II every 45,000 miles or 36 months, whichever is sooner.
Why? Its a 150,000 mile 5 year coolant.
They must have known something.
How many people do you think actually change their engine coolant in their DII every 3 years?
I have the gaskets, i will need the head bolts, where from? dealer or is another place that I can get them from???