I also pulled the flywheel cover and cleaned the fly wheel. I found the timing mark and the letters that I couldn't find the last time I tried to time the truck. I am a little confused though because the timing mark has the number "2" next to it and the letters "IUC". I'm not sure if the number 2 means that I am supposed to time the engine off the number two spark plug wire? And I'm not sure what IUC stands for? You can see what I'm talking about in this picture:
Nice camera work from under the truck huh?
The triangle is the timing mark for Top Dead Center. The ball embedded in the wheel is the timing mark for the correct advance of the spark. You can see someone put some orange paint on the ball at one point. I put white paint in the lettering and white on the ball. I will hopefully get a chance to try to time the engine again next weekend.
It also looks like most of the engine was once blue. Currently everything under the truck is black, but when I cleaned years of accumulated grime off the flywheel cover a blue matching the engine was revealed:
Who knows what the rest of the engine and drive train will look like once I clean it!
2 comments:
tdc is 0 degrees timing your light dshould have a dial on it for amount of degrees advance or retard just dial it to the correct amount and line it up with the triangle.
1UC:
Open the compression cocks on the motor and turn it over until cylinder No 1 is on the exhaust stroke. Revolve the motor slowly, then until the piston in this cylinder reaches upper dead center. This you can tell by means of the rod in the compression cup hole. Mark the rod at the point where the piston is at upper dead center or, in other words, when the rod is lifted as high as possible. When you have got this point located exactly and you are sure that you are right, center punch the flywheel and some mark on a part of the stationary part of the engine near it so that you will know that when these two marks are directly opposite each other the piston in the No 1 cylinder is on upper dead center. After you are sure the marks are in line correctly and that the piston is really on upper dead center, center punch on the flywheel alongside the mark you have made, 1UC. This will signify that cylinder No 1 is on upper dead center.
From http://books.google.com/books?id=cNMqAAAAMAAJ&pg=PA1073&lpg=PA1073&dq=flywheel+iuc&source=bl&ots=u4XpQlFAH5&sig=JnPXXp0uk-KQrXnX7tTSUsIMvBc&hl=en&ei=bx9PTJbNEojGsAPM0sTuBw&sa=X&oi=book_result&ct=result&resnum=1&ved=0CBIQ6AEwAA#v=onepage&q=flywheel%20iuc&f=false
Post a Comment