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Honda CB450 Rebuild: Removing the engine, Pt. 1. Project Diamond

Posted by Brenden Macaluso on 11/25/2014
The first thing we are going to rebuild on Project Diamond is the engine. It has 37,000 miles on the odometer and is leaking oil heavily from the cylinder head and the crank case. However, we must remove the from the frame so we can take it apart on the work bench. It seems like this engine has never been out of the frame or even apart, therefore all the nuts and bolts on this engine are going to be stuck in place.




Our task is two fold: First to disconnect all the parts that hold the engine to the frame along with any other parts / accessories that must be removed to get the engine out.

Second, we will loosen all the external fasteners (screws, nuts, bolts) on the engine while it is still held in the frame. It is easier to loosen these fasteners now while the engine is stable in the frame rather than rolling around on the work bench.

Speaking of parts to rebuild, our carburetors are due for an overhaul as well after we discovered the crank case was full of gasoline from a leaky needle seat.

Next Time: Pulling out the engine Pt. 2.