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| Andrew Tightening the lower head bolts on a shiny rebuilt head. |
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| The angle gauge. |
Do you look at this picture and think "hmm. Science." Well I do. It's interesting how having things all shiny and adding a gaugy looking thing makes a person think science.
The bolts that attach the lower part of the head to the engine blocks usually have toque specifications. Tighten to 55 ft lbs for example. However Volvo tells the user to tighten the bolts to 44 ft lbs then turn the bolt an additional 130 degrees. That's what this fancy looking gauge tell us. Just how far has Andrew turned this bolt. This part was nerve racking. Stripping or breaking these bolts would be bad. The last 20 degrees of the turn on nearly every bolt made an ominous creaking sound, but all seems to be well.
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| Andrew turns the angle gauge. |
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| Few! That's over. Time to pack up for the night. |
The head (the top half of the engine) took so long in being refinished that Andrew and I lost momentum on this project. Now that we finally have the part, we don't have the drive to go and finish it all in a day even though we probably could. Instead, we've been working on in for a few hours each day.
Another day.
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| The top half of the head is on. So are the CAM sprokets. |
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| Line up the marks on the cam sprockets. |
To get the timing right you have to line up them marks on the sprockets with the marks on the timing belt cover.
You don't want to get this wrong. With this kind of engine having the timing off results in bent valves. In other words broken head. That's how we got this car in the first place. Somebody was dumb and didn't change the timing belt. It broke and we got a cheap car to fix up.
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| Technically there are no gears in this picture. |
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Did you know the difference between a gear and a sprocket. Well
aparently those things on my bike that I've been calling gears all these
years are actually sprockets. Gears hook to other gears. Sprocket
connect to belts of chains.
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| Yeah I don't just take pictures. Sometimes I crawl under the car. |
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