Re: loss of power 115 C

Posted by HH56 On 2018/7/13 9:36:06

Could be coil it it happens intermittently and hot but if your coil is one that connects to the ign switch via a wire inside an armored cable I would check the wire inside the armor or bypass it temporarily and see if the problem still occurs. Failed insulation on the wire and vibration shorting it to the armor is a known issue on that arrangement.

I would also change the condenser (even new ones can have issues).

The distibutor may be OK at times but check the electrical path in the distributor between the points and the terminal where the coil connects to make sure there is no way an intermittent ground can occur. I have no idea of how the path is done in your particular distributor but in those that have a flexible lead wire covered in fabric between the points and an outside terminal, the insulation on the wire can rot and fall off letting the wire intermittently ground if there is any movement in the dist such as an advance mechanism. On others, if there is some kind of rubber bushing where the terminal passes thru the case make sure that is intact and nothing can vibrate to touch the case.

If the dist is the type that rotates the body for an advance make sure the wire connecting to the coil has not flexed and broken near the terminal. Also make sure the ground between the distributor and block is solid with no high resistance thru the clamping arrangement. If it has the extra ground wire between the block and case also make sure no flex breaks are in that wire either.

Also check that the engine isn't twisting with torque and somehow shorting a wire or again, some wire in the ign circuit is tight or has a flex break that gets stretched or moved as the engine twists.