C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

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Old Sep 13, 2004 | 10:09 PM
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Is a Helms manual a reprint of the original factory service manual? Or is it something better?

Totally
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Old Sep 13, 2004 | 10:34 PM
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As far as I know, Helms printed them for GM.
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Old Sep 13, 2004 | 10:44 PM
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Originally Posted by Mr Mojo
As far as I know, Helms printed them for GM.
Gotcha. Thanks, Frank!

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Old Sep 13, 2004 | 11:53 PM
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Frank is correct... sad but true.

Those manuals are tragic, really.

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.
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Old Sep 14, 2004 | 02:37 AM
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Originally Posted by bogus
Frank is correct... sad but true.

Those manuals are tragic, really.

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?
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Old Sep 14, 2004 | 02:45 AM
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In general no, mabe for a couple of things it's better imho
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Old Sep 14, 2004 | 08:36 AM
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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.

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Old Sep 14, 2004 | 08:51 AM
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Perhaps adding a haynes manual to the collection would be a good thing, small investment for a different look at the same problems...
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Old Sep 14, 2004 | 10:02 AM
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Originally Posted by JCD
Perhaps adding a Haynes manual to the collection would be a good thing, small investment for a different look at the same problems...
Gonna do that...can't hurt.
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Old Sep 14, 2004 | 10:23 AM
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Originally Posted by j3studio
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.

RACE ON!!!

Last edited by CFI-EFI; Sep 14, 2004 at 10:26 AM.
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Old Sep 14, 2004 | 01:12 PM
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Originally Posted by CFI-EFI
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.

RACE ON!!!

Couldn't have said it better myself!
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Old Sep 14, 2004 | 05:04 PM
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Originally Posted by JCD
...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.

Eric
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Old Sep 14, 2004 | 05:50 PM
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John,

I have a Haynes manual... I don't think I have cracked it in the 4 years I have had it!

Do you want it?

andy
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Old Sep 15, 2004 | 03:03 AM
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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.
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