problem with bulldog flywheel
#1
problem with bulldog flywheel
I have a Bulldog 500 engine in my boat ,I bought this engine last year ,and it had a bellhousing with top mount reverse rotation starter .
I had to change it to bravo style bell house ,and took off the flywheel to heat the ring gear and place the gear on the block side (was mounted on transom side for top mount reverse starter )
The flywheel is made for mounting the ring gear on either side cause of the edge right in the center .
So I mounted the flywheel to the engine and found that the starter gear would only come less than 3/16 inch into the flywheel ring gear .... how come ?? so I tried several starters ,and finally a hitachi mini high torque starter came 3/16 in the ring gear .
I was afraid doing this ,so I took off the flywheel ,and machined out 1/16 , or maybe a fraction more ,I did not want to made the center of the flywheel weak by taking off too much ...
So now the starter gear was a little less than 5/16 into the flywheel gear .
Now I have about 40 hours or so on the engine ,and today the starter made noises that indicate there is something wrong ... either the ring gear is worn ,or the starter gear .. I want to take off the starter tomorrow ,to see whats wrong ,but I think I need to change something so the starter gear goes all the way up into the flywheel gear .
Anybody know how to do this ? or have had a simular problem like this ?
I had to change it to bravo style bell house ,and took off the flywheel to heat the ring gear and place the gear on the block side (was mounted on transom side for top mount reverse starter )
The flywheel is made for mounting the ring gear on either side cause of the edge right in the center .
So I mounted the flywheel to the engine and found that the starter gear would only come less than 3/16 inch into the flywheel ring gear .... how come ?? so I tried several starters ,and finally a hitachi mini high torque starter came 3/16 in the ring gear .
I was afraid doing this ,so I took off the flywheel ,and machined out 1/16 , or maybe a fraction more ,I did not want to made the center of the flywheel weak by taking off too much ...
So now the starter gear was a little less than 5/16 into the flywheel gear .
Now I have about 40 hours or so on the engine ,and today the starter made noises that indicate there is something wrong ... either the ring gear is worn ,or the starter gear .. I want to take off the starter tomorrow ,to see whats wrong ,but I think I need to change something so the starter gear goes all the way up into the flywheel gear .
Anybody know how to do this ? or have had a simular problem like this ?
#2
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I have a Bulldog 500 engine in my boat ,I bought this engine last year ,and it had a bellhousing with top mount reverse rotation starter .
I had to change it to bravo style bell house ,and took off the flywheel to heat the ring gear and place the gear on the block side (was mounted on transom side for top mount reverse starter )
The flywheel is made for mounting the ring gear on either side cause of the edge right in the center .
So I mounted the flywheel to the engine and found that the starter gear would only come less than 3/16 inch into the flywheel ring gear .... how come ?? so I tried several starters ,and finally a hitachi mini high torque starter came 3/16 in the ring gear .
I was afraid doing this ,so I took off the flywheel ,and machined out 1/16 , or maybe a fraction more ,I did not want to made the center of the flywheel weak by taking off too much ...
So now the starter gear was a little less than 5/16 into the flywheel gear .
Now I have about 40 hours or so on the engine ,and today the starter made noises that indicate there is something wrong ... either the ring gear is worn ,or the starter gear .. I want to take off the starter tomorrow ,to see whats wrong ,but I think I need to change something so the starter gear goes all the way up into the flywheel gear .
Anybody know how to do this ? or have had a simular problem like this ?
I had to change it to bravo style bell house ,and took off the flywheel to heat the ring gear and place the gear on the block side (was mounted on transom side for top mount reverse starter )
The flywheel is made for mounting the ring gear on either side cause of the edge right in the center .
So I mounted the flywheel to the engine and found that the starter gear would only come less than 3/16 inch into the flywheel ring gear .... how come ?? so I tried several starters ,and finally a hitachi mini high torque starter came 3/16 in the ring gear .
I was afraid doing this ,so I took off the flywheel ,and machined out 1/16 , or maybe a fraction more ,I did not want to made the center of the flywheel weak by taking off too much ...
So now the starter gear was a little less than 5/16 into the flywheel gear .
Now I have about 40 hours or so on the engine ,and today the starter made noises that indicate there is something wrong ... either the ring gear is worn ,or the starter gear .. I want to take off the starter tomorrow ,to see whats wrong ,but I think I need to change something so the starter gear goes all the way up into the flywheel gear .
Anybody know how to do this ? or have had a simular problem like this ?
#3
No ,this flywheel belongs to this engine ,I only switched the ring gear from engine side to the other side of the flywheel ,so from top mount starter reverse rotation ,to block mount starter normal rotation.
The flywheel is a 168 tooth ,and the starter is a Hitachi hi torque mini starter ,the gap is exactly like it should be ,I mouted it with a feeler gauge .
A 153 tooth flywheel would not be tall enough to let the gears touch .
There were 2 shims with the starter ,but no need to use them.
The starter is located in the center line of the crankshaft,adding shims would not make any difference ,cause the starter is going to go lower only ,I need to move my starter to the transom so it comes more into the flywheel gear
The flywheel is a 168 tooth ,and the starter is a Hitachi hi torque mini starter ,the gap is exactly like it should be ,I mouted it with a feeler gauge .
A 153 tooth flywheel would not be tall enough to let the gears touch .
There were 2 shims with the starter ,but no need to use them.
The starter is located in the center line of the crankshaft,adding shims would not make any difference ,cause the starter is going to go lower only ,I need to move my starter to the transom so it comes more into the flywheel gear
Last edited by stirling; 09-28-2013 at 11:38 AM.
#4
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No ,this flywheel belongs to this engine ,I only switched the ring gear from engine side to the other side of the flywheel ,so from top mount starter reverse rotation ,to block mount starter normal rotation.
The flywheel is a 168 tooth ,and the starter is a Hitachi hi torque mini starter ,the gap is exactly like it should be ,I mouted it with a feeler gauge .
A 153 tooth flywheel would not be tall enough to let the gears touch .
There were 2 shims with the starter ,but no need to use them.
The starter is located in the center line of the crankshaft,adding shims would not make any difference ,cause the starter is going to go lower only ,I need to move my starter to the transom so it comes more into the flywheel gear
The flywheel is a 168 tooth ,and the starter is a Hitachi hi torque mini starter ,the gap is exactly like it should be ,I mouted it with a feeler gauge .
A 153 tooth flywheel would not be tall enough to let the gears touch .
There were 2 shims with the starter ,but no need to use them.
The starter is located in the center line of the crankshaft,adding shims would not make any difference ,cause the starter is going to go lower only ,I need to move my starter to the transom so it comes more into the flywheel gear
#5
You are right ,and I did remove a thin shim ,but it was so little ,and I needed almost 1/4 inch to move to the rear ... I have several starters ,also mini straters and big mercruiser starters ,all of them would not come the full 3/8 inch into the flywheel gear , thats why I machines some material out of the center of the flywheel ,I will try to shoot some pics ,but I don,t know if I can post here ... Thanks for help BTW