"What are the most common problems with the 1987 Land Rover Defender 90 and how can I fix them?"

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Hey there! Great question about the '87 Defender 90 - these are legendary trucks but they definitely have their quirks. Let me break down the most common issues and how to fix them:

## The Big Five Problems (and their real-world fixes):

### 1. **Bulkhead Rust** - The #1 killer
**What happens:** Water gets trapped behind the dash and door seals, rotting the firewall from the inside out. You'll see it first in the footwells and A-pillars.
**The fix:** YRM Metals makes excellent repair panels (about $200-400 for panel sets). Cut out the cancer, weld in new metal, and seal everything with Waxoyl. Budget $800-1500 if you're paying someone to do it.

### 2. **2.5 Diesel Engine Issues** - Underpowered but bulletproof if maintained
**What happens:** The 68hp 2.5 NA has weak points - injector pumps leak, timing belts snap, and copper washer failures cause compression loss.
**The fix:** 
- Injector pump rebuild: $300-500 (CAV pumps are rebuildable)
- Timing belt: Every 40-50k miles, $150 in parts
- Injector washers: Replace during routine service, $20 in parts

### 3. **LT77 Transmission** - Notorious 2nd gear crunch
**What happens:** Weak synchros, especially 2nd gear, plus bearing failures. You'll get grinding shifts and eventually no 2nd gear.
**The fix:** Ashcroft Transmissions master rebuild kit runs about $640. With labor, budget $1200-1800 for a full rebuild. Worth it - these gearboxes can be made bulletproof.

### 4. **Chassis Rust** - Hidden but deadly
**What happens:** The steel frame rots from inside out, especially rear crossmember and outriggers.
**The fix:** Regular Waxoyl treatments prevent it. If caught early, weld in repair sections. Severe cases need full chassis replacement ($2000-4000).

### 5. **Electrical Gremlins** - Lucas = "Prince of Darkness"
**What happens:** Bad grounds, corroded connections, failing switches - typical British car electrics.
**The fix:** Complete rewire with modern fuse box ($500-800), or just clean and dielectric-grease every connection you can find.

## The Good News:
- Parts are cheap and available (YRM Metals, Bearmach, Paddock Spares)
- These trucks are simple to work on - you can do most repairs yourself
- Values are climbing fast on well-maintained examples
- The 2.5 diesel, while slow, will run forever with basic maintenance

## Preventive Maintenance Schedule:
- Check bulkhead every oil change
- Waxoyl chassis annually
- Timing belt every 45k miles
- Gearbox oil change every 30k miles
- Grease all fittings monthly

The '87 Defender 90 you're looking at has already had some key work done - new injectors, fuel pump, and starter. That's a good sign the previous owner addressed some of these issues. At $24k, it's fairly priced for a clean example, especially with the recent restoration work.

Want me to help you find similar Defenders or dig deeper into any specific problem area?

Lot 7630: 1987 Land Rover Defender 90

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