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Can someone please help me track down the correct replacement for this alternator. 1972 Cutlass 350, stock with the voltage regulator on the firewall. The current replacement is a Remy 1100948 61A however it is discontinued. I saw multiple reads about 10DN vs 10SI and such and I am just wanting to make sure I get the correct one. The reason for the replacement is that the bearings are screaming for help lol. Thanks in advance, Mike.
1972 cars use the one-year-only 10DN alternator (externally regulated) in a 10SI housing. It's basically a 10SI internally regulated alternator, but the internal regulator is replaced with a simple terminal assembly and spacer to connect to the external regulator. Note that the terminals on the terminal assembly are aligned I I as opposed to the ones on the regulator that are aligned - -.
1972 cars use the one-year-only 10DN alternator (externally regulated) in a 10SI housing. It's basically a 10SI internally regulated alternator, but the internal regulator is replaced with a simple terminal assembly and spacer to connect to the external regulator. Note that the terminals on the terminal assembly are aligned I I as opposed to the ones on the regulator that are aligned - -.
If you don't feel comfortable doing this yourself, seek out a local electrical shop to rebuild your alternator.
Much easier than finding a needle in a haystack.
Agreed with bearing replacement. Its sooo simple to do. Just make sure you get high quality replacement bearings. The number is stamped on the bearing or the seal.
Take a few pics and mark things well as you disassemble. Use good bearing installation common sense techniques.
Or find a reputable shop that will rebuild and load test with a warranty.
The two things to look out for when replacing the bearings are 1) removing the large nut that retains the fan and 2) noting the position and orientation of the spacers between the pulley, fan, and bearing. I've found that the easy way to remove the nut is to loosen it before you release tension on the belt. Let it soak in some penetrating oil first. An impact wrench usually makes quick work of this.
Well I do have a replacement on the way however I did begin disassembly this evening. Nut holding the fan came off with no issues and I have the case separated. Work phone started getting in the way so I stopped where I was so I can make certain I am paying attention. We'll try again in the next few days.
Did you happen to mark or note the original clocking between the front and rear housings? They can go together one of four ways, and the wrong way will put the terminal plug in an inaccessible location.
Did you happen to mark or note the original clocking between the front and rear housings? They can go together one of four ways, and the wrong way will put the terminal plug in an inaccessible location.
I did. I had a feeling this would help me going back together
So the replacement alternator showed up and my son installed it for me. Two things that are different than the one that went bad and looking to see if these are a concern or if we're ok to keep it in place. First there is a small stud that says "ground" which the previous didn't have. Second, there is not a place to mount this back bracket. Is this bracket completely necessary or is this ok to remove? Hopefully my edit skills served me well.
What would be beneficial is to state the exact name of the manufacturer & the exact model number you installed on the vehicle. This keeps everyone from creating guess work on fit & application.
What would be beneficial is to state the exact name of the manufacturer & the exact model number you installed on the vehicle. This keeps everyone from creating guess work on fit & application.
Two things that are different than the one that went bad and looking to see if these are a concern or if we're ok to keep it in place. First there is a small stud that says "ground" which the previous didn't have. Second, there is not a place to mount this back bracket. Is this bracket completely necessary or is this ok to remove? Hopefully my edit skills served me well.
The ground terminal is used in some installations, and others not.
Olds wouldn't have gone to the trouble of making and installing the bracket if it wasn't necessary.
My advice is to get your original alternator repaired and re-install it.
And keep the Rock Auto unit on the shelf in your garage for emergencies.
The ground terminal is used in some installations, and others not.
Olds wouldn't have gone to the trouble of making and installing the bracket if it wasn't necessary.
My advice is to get your original alternator repaired and re-install it.
And keep the Rock Auto unit on the shelf in your garage for emergencies.
Smartest thing I've heard all day. Rockauto is taking the incorrect alternator back, not sure why I even considered leaving this one in. I was able to locate an exact replacement from the local parts store just had to pay a little more but sometimes you do get what you paid for. I disassembled the one that was in the car and will locate a replacement bearing and brushes. Going to repair this one and keep it on the garage shelf for the future.
