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They work as reference material for factory trained service techs. That's the problem with them, they are so vague, cause there is classroom time that goes with them that we don't get.
They work as reference material for factory trained service techs. That's the problem with them, they are so vague, cause there is classroom time that goes with them that we don't get.
In that case, would I be better off getting a Hayes Repair Manual instead of the GM Shop Manual for my info on repairs?
Thanks, everybody. I was worried that I'm missing something wonderful, but it turns out that I'm not, as I do have the service manual...just never heard it called the Helms manual until a couple of weeks ago.
as I do have the service manual...just never heard it called the Helms manual until a couple of weeks ago.
If you have "THE" service manual, you have the Helms. The "Chevrolet Factory Service" manual makes little reference as to who published it. To the casual eye, it appears to be a Chevrolet publication. On the inside front cover of mine, there is manual ordering information, that directs you to Helm Inc. For actual repair procedures, how to remove and reinstall a specific component, the independents may be good. However, they do cover multiple years. The beauty of the Helms, is in the the trouble shooting charts and the test procedures for individual components, minimizing the need to replace parts, needlessly. Also, there are explanations of how certain systems work and in some cases interact with others.
THE factory service manual is called "The Helms", because it is published by Helms for Chevrolet.
If you have "THE" service manual, you have the Helms. The "Chevrolet Factory Service" manual makes little reference as to who published it. To the casual eye, it appears to be a Chevrolet publication. On the inside front cover of mine, there is manual ordering information, that directs you to Helm Inc. For actual repair procedures, how to remove and reinstall a specific component, the independents may be good. However, they do cover multiple years. The beauty of the Helms, is in the the trouble shooting charts and the test procedures for individual components, minimizing the need to replace parts, needlessly. Also, there are explanations of how certain systems work and in some cases interact with others.
THE factory service manual is called "The Helms", because it is published by Helms for Chevrolet.
...small investment for a different look at the same problems...
I couldn't agree more. For example, if you're dropping your rear diff to swap gears, you have to remove the spring. FSM says use some special, expensive spring compressor (for the traverse spring, big $$$). The cheapy Haynes manual shows how to do it with a floor jack.
The Helms GM manuals are very good compared to what is available for other cars. The electrical schematic section is particularly good. Compare the Helms manuals to those for Nissan, Toyota or Jaguar. The Haynes manuals often have a good section on rebuilding an engine but are skimpy for most of the other stuff.