My 2000 DII with 91,000 miles needs a new head gasket. While I have things apart I’m thinking that I should do some preventive maintenance. Here is my list so far: 1) Water Pump, 2) Fan and viscous damper, 3) Timing chain, 4) Plugs and wires, 5) Serpentine belt, tensioner and idler pulleys. Do I need to do all of these things? Is there something else I should consider?

Any recommendation on a good machine shop to take the heads in the Los Angeles – South Bay area?

BIG g
2000 Disco II

 

No need to replace the timing chain and gears.
Every thing else is a good idea though.

 

New t/stat, new upper radiator hose/bleed screw tee, and the list below.
This is the parts list for a 60,000 mile service or a high mileage used truck, the way I do it.
1 Oil filter, K&N 3001 or Mobil 1- 301
1 Factory air filter
6 Qts of engine oil
12 Qts of ATF
7 Qts of 80/90W synthetic gear oil, 85W/140 for HD use
3 Pints of synthetic DOT 4 Brake fluid
2 Qts of synthetic Power steering fluid
2 Gallons of OAT, orange coolant, also called Dexcool
1 Bottle of Lucas Power Steering additive
1 Bottle of Lucas Transmission additive
1 Can of Spray Carb. Spray
1 Can Of Brake cleaner
8 Spark Plugs, I use Bosch Platium Plus 4's
1 Set of Magnacor 8mm plug wires
1 Serpentine belt
2 Bottles of SeaFoam gas additive
1 T/Stat
1 bottle of WaterWetter or Purple Ice
Hoses and belts, as necessary

60,000 Mile Service or Major Service for High Mileage Used Vehicle just purchased

Bleed the brakes
Flush and change the power steering fluid adding one bottle of additive
Service the tranny adding one bottle of additive
Change the coolant and t/stat
Do an engine flush before changing the oil
Do an induction cleaning
Clean the throttle body
Add fuel additive to full gas tank
Change both of the diffs fluid
Change the t/case oil
Replace the plugs and wires
Replace the air filter
Lube all the drive shaft grease fitting including the 2 slip shafts
Do full inspection of brakes, hoses, bushings etc.

Hopefully I didn't leave anything out.

 

The belt and pulleys are pretty easy to change anytime, personnally I wouldn't bother unless it was needed. I would replace the crank sensor if it is original. It's easier to replace with the heads off and they tend to fail around your mileage leaving you stranded for a while. I also cut 1/2" off the negative battery cable where it attaches to the head and put a new lug on because it was pretty corroded. Pretty cheap and easy to do since your disconnecting it anyways and it can save you headaches in the long run. There is another grounding strap attached at the back of the engine that had pretty good corrosion. I would have liked to replacemine when I did my head gasketsbut I didn't have one.

Your getting an intake gasket kit right? I'd do all the coolant hoses too if they are original (at the very least the short throttle body hose which is hard to get to with the intake on). You have to drain the coolant anyways and it would be easier to do with the heads gaskets.

 

Thanks Spike555, Disco Mike and jkid for the input.I can now put in the parts order. Should have the heads off by tomorrow.

BIG g

 

DiscoMike recommends using Lucas tranny additive and the power steering additive. Are those the Tranny Leak Fix and Power Steering Leak Fix products? Those are the only ones that Kragen carries. Thanks Phil

 

If you need a additive then you need a different brand of fluid.

I do not know the answer to your question because I do not use additives.

 

When Lucas talks about stop leak, they are referring to internal seal, valve and solenoid leaks which will inturn cause either steering or shifting issues.

 

so those are the products that you add when you do your 60 k services? Thanks Phil

 

OH YES!!