LSA Balancer Spacing on 5.3L, Pinning, etc...
06-29-2016, 10:36 AM
#1
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LSA Balancer Spacing on 5.3L, Pinning, etc... Hey Guys,
Got an interesting situation I am looking to fix and wanted to see if anyone else has encountered and solved this. Did a pretty good check of threads on this page and others and found nada.
I am adapting an LSA Blower to the 5.3L. I am using half LSA Accessories and half C5. So far no real show stoppers other than the scumbag who sold me the C5 accessories and giving me a POS rusted alternator. That is what I get for not checking stuff out in the box until a year after getting it!
Any how, I am using the blower drive off an LSA, including the balancer. Most things went on very easily and even with the adapter plates for the cathedral heads, I was able to get the stock 8 rib belt on...very happy about that.
My main point of concern is the balancer. Was able to align it very easily, but it is not bottomed out and there is a step from the end of the crank to the balancer presumably for a long crank snout on the LSA. Since the LSA had a woodruff key initially as evidence by the stock balancer, but I have to deal with a step, I was considering the following:
- steel spacer the correct depth/diameter of the step,
- pin spacer to crank snout
- pin balancer to spacer
OR
- Pin balancer to crank through spacer (longer pin) = RISKY
OR
- Set Screw through ARP Crank bolt into balancer (Drill pilot hole in ARP first, then use as template/guide for balancer). Still need the spacer regardless.
Let me know your thoughts!
Here's some pics...you can see the step in the first pic.
Thanks!
Dave
Got an interesting situation I am looking to fix and wanted to see if anyone else has encountered and solved this. Did a pretty good check of threads on this page and others and found nada.
I am adapting an LSA Blower to the 5.3L. I am using half LSA Accessories and half C5. So far no real show stoppers other than the scumbag who sold me the C5 accessories and giving me a POS rusted alternator. That is what I get for not checking stuff out in the box until a year after getting it!
Any how, I am using the blower drive off an LSA, including the balancer. Most things went on very easily and even with the adapter plates for the cathedral heads, I was able to get the stock 8 rib belt on...very happy about that.
My main point of concern is the balancer. Was able to align it very easily, but it is not bottomed out and there is a step from the end of the crank to the balancer presumably for a long crank snout on the LSA. Since the LSA had a woodruff key initially as evidence by the stock balancer, but I have to deal with a step, I was considering the following:
- steel spacer the correct depth/diameter of the step,
- pin spacer to crank snout
- pin balancer to spacer
OR
- Pin balancer to crank through spacer (longer pin) = RISKY
OR
- Set Screw through ARP Crank bolt into balancer (Drill pilot hole in ARP first, then use as template/guide for balancer). Still need the spacer regardless.
Let me know your thoughts!
Here's some pics...you can see the step in the first pic.
Thanks!
Dave
08-15-2016, 04:24 PM
#3
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Hey Guys,
Got an interesting situation I am looking to fix and wanted to see if anyone else has encountered and solved this. Did a pretty good check of threads on this page and others and found nada.
I am adapting an LSA Blower to the 5.3L. I am using half LSA Accessories and half C5. So far no real show stoppers other than the scumbag who sold me the C5 accessories and giving me a POS rusted alternator. That is what I get for not checking stuff out in the box until a year after getting it!
Any how, I am using the blower drive off an LSA, including the balancer. Most things went on very easily and even with the adapter plates for the cathedral heads, I was able to get the stock 8 rib belt on...very happy about that.
My main point of concern is the balancer. Was able to align it very easily, but it is not bottomed out and there is a step from the end of the crank to the balancer presumably for a long crank snout on the LSA. Since the LSA had a woodruff key initially as evidence by the stock balancer, but I have to deal with a step, I was considering the following:
- steel spacer the correct depth/diameter of the step,
- pin spacer to crank snout
- pin balancer to spacer
OR
- Pin balancer to crank through spacer (longer pin) = RISKY
OR
- Set Screw through ARP Crank bolt into balancer (Drill pilot hole in ARP first, then use as template/guide for balancer). Still need the spacer regardless.
Let me know your thoughts!
Here's some pics...you can see the step in the first pic.
Thanks!
Dave
Got an interesting situation I am looking to fix and wanted to see if anyone else has encountered and solved this. Did a pretty good check of threads on this page and others and found nada.
I am adapting an LSA Blower to the 5.3L. I am using half LSA Accessories and half C5. So far no real show stoppers other than the scumbag who sold me the C5 accessories and giving me a POS rusted alternator. That is what I get for not checking stuff out in the box until a year after getting it!
Any how, I am using the blower drive off an LSA, including the balancer. Most things went on very easily and even with the adapter plates for the cathedral heads, I was able to get the stock 8 rib belt on...very happy about that.
My main point of concern is the balancer. Was able to align it very easily, but it is not bottomed out and there is a step from the end of the crank to the balancer presumably for a long crank snout on the LSA. Since the LSA had a woodruff key initially as evidence by the stock balancer, but I have to deal with a step, I was considering the following:
- steel spacer the correct depth/diameter of the step,
- pin spacer to crank snout
- pin balancer to spacer
OR
- Pin balancer to crank through spacer (longer pin) = RISKY
OR
- Set Screw through ARP Crank bolt into balancer (Drill pilot hole in ARP first, then use as template/guide for balancer). Still need the spacer regardless.
Let me know your thoughts!
Here's some pics...you can see the step in the first pic.
Thanks!
Dave
08-15-2016, 06:42 PM
#4
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False alarm on the spacing...user error, namely me....haha. No spacing needed...tighten it all the way down and it lines up properly. It will be slightly prone but you and drill and pin very easily. Did it myself on my 5.3 crank.
Dave
Dave
08-16-2016, 08:27 AM
#5
thanks for coming back with your fix. many future searchers will appreciate this. I believe the CTS-V blower swap on the smaller truck motors is only going to get more popular.
