Hello.
I'm trying to replace my old dynamo by an alternator (AH Spares' kit), but I'm in a fix when it comes to fitting the new alternator bracket on the cylinder block.
In fact, I discovered that one (or maybe several !) previous "mechanics" had modified the 4 fixation holes :
- filled in the rear one with some solder (don't know why... maybe after a failed attempt to deepen it, and water flowing out ?),
- drilled a new one in front of it,
- oversized the second hole (the stud's diameter is bigger),
- maybe after having broken the stud inside the 3rd one, left it as is and put another one but screwed on 2 threads only...
- last but not least, broke the stud inside the 4th hole (the front one), w/o replacing it.
Believe it or not, the old dynamo still manage to stay on the engine - but for how long?
Therefore, I want to have the 4 holes (of course of a larger diameter) drilled in the right position, BUT having noticed that they are on the top of the water gallery, I guess that they must not be too deep, in order to avoid any water leak nor any other joke...
Could somebody tell me what is the maximum length allowed for these holes ? What are the potential mistakes that should be avoided ? Any additional advice welcome
Thank you in advance for your replies.
Matt
I'm trying to replace my old dynamo by an alternator (AH Spares' kit), but I'm in a fix when it comes to fitting the new alternator bracket on the cylinder block.
In fact, I discovered that one (or maybe several !) previous "mechanics" had modified the 4 fixation holes :
- filled in the rear one with some solder (don't know why... maybe after a failed attempt to deepen it, and water flowing out ?),
- drilled a new one in front of it,
- oversized the second hole (the stud's diameter is bigger),
- maybe after having broken the stud inside the 3rd one, left it as is and put another one but screwed on 2 threads only...
- last but not least, broke the stud inside the 4th hole (the front one), w/o replacing it.
Believe it or not, the old dynamo still manage to stay on the engine - but for how long?
Therefore, I want to have the 4 holes (of course of a larger diameter) drilled in the right position, BUT having noticed that they are on the top of the water gallery, I guess that they must not be too deep, in order to avoid any water leak nor any other joke...
Could somebody tell me what is the maximum length allowed for these holes ? What are the potential mistakes that should be avoided ? Any additional advice welcome
Thank you in advance for your replies.
Matt