john connell
Member
2 Stroke 671 Detroit Diesel wont turn freely!
Those of you who have experience with the old 2 stroke Detroit's may have an idea of what is happening here. I own a '54 GMC Greyhound Coach refurbished into an RV, It has sat for many years with being started only infrequently notably, without problem or hesitation with the exception of the fuel filters needing to be replaced. We decided to ger her back on the road and spent ample time testing before an actual "journey". After about 35 miles in the neighboring area, the engine began to struggle and then refuse idle at all. Upon restarting, soon the starter motor would no longer turn the engine. I've gone through several tests coming to no solid conclusion. After installing a new starter Ive not had any improvement over the original one. This engine has always been very reliable and starts very easily even using a single 12v automotive 900 CCA battery. Now, throughout roughly half of the crankshaft rotation, the amount of effort to bar it over is quite high. Any thoughts and ideas are greatly appreciated. I've been unable to locate knowledgeable locals. Hopefully your experience is exactly what will help. John
Those of you who have experience with the old 2 stroke Detroit's may have an idea of what is happening here. I own a '54 GMC Greyhound Coach refurbished into an RV, It has sat for many years with being started only infrequently notably, without problem or hesitation with the exception of the fuel filters needing to be replaced. We decided to ger her back on the road and spent ample time testing before an actual "journey". After about 35 miles in the neighboring area, the engine began to struggle and then refuse idle at all. Upon restarting, soon the starter motor would no longer turn the engine. I've gone through several tests coming to no solid conclusion. After installing a new starter Ive not had any improvement over the original one. This engine has always been very reliable and starts very easily even using a single 12v automotive 900 CCA battery. Now, throughout roughly half of the crankshaft rotation, the amount of effort to bar it over is quite high. Any thoughts and ideas are greatly appreciated. I've been unable to locate knowledgeable locals. Hopefully your experience is exactly what will help. John