The harmonic balancer was a bit more tricky to get out. I removed the three bolts that hold the pulley to the damper and then had to get the large crank bolt out. It is so tight that you need to prevent the engine from turning. I did that by adding two of the flywheel bolts to the back of the crank, placed my jack handle between them and turned the engine until the handle touched the exhaust. Now the crank would not turn and I could get the bolt out.
Finally I needed a puller to get the damper out. My friend had one so I borrowed it. He had made it by welding two pieces of iron together and drilling four holes to it. Simple but effective and I soon had the balancer out.
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| DIY harmonic balancer puller |
Now the road was clear for the timing chain cover. I unbolted the fuel pump from it and then removed the cover itself.
The timing chain itself can be pulled out by just removing the fuel pump eccentric and then wiggling the gears until they come free. The chain had quite a lot of play so it's definitely time to replace it.
Before continuing to drop the crank, I removed the oil pump and then cleaned the parts a bit to see what new stuff I needed. Luckily most were in pretty good condition. The chain cover was almost like new. No rust, just a lot of dirt. I'll clean it, paint it and put it back.
The water pump was also really good. So good that I suspect that it has been replaced at some point. No rust inside or out and no play in the shaft. No need to replace it either.
Finally I checked the damper and again found nothing wrong with it. The rubber seemed good so it can be reused after some more cleaning.
So only the oil pump, timing chain and bearings need to be replaced. Unless I find more surprises...
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| Old and new oil pumps |
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| New Federal Mogul timing chain |
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