Helicoil Repair - Air Intake Plenum - 88 Vette

[WTS]

Does anyone know if the tapped holes in the air intake plenum can be repaired using heilcoils ? The thread cavities in the plenum appear to be large enough, but I am not sure.

WTS

 

[92BlackVette]

I know some people stand by heilcoils but I never wanted to go that route. I like the idea of tapping the hole out and re-threading in a standard or larger metric bolt. Some will complain about tolerances in those situations but that is my 2 cents.

- Harbor Freight Tools - Quality Tools at the Lowest Prices

 

[KANE]

Does anyone know if the tapped holes in the air intake plenum can be repaired using heilcoils ? The thread cavities in the plenum appear to be large enough, but I am not sure.

WTS

Plenums are still fairly inexpensive these days.

So, if you want to save yourself the time and effort for tapping and threading... I found one on ebay. FWIW- They sell for about $39.
85-88 Camaro/Firebird/Corvette TPI PLENUM 86 87 350 305:eBay Motors (item 370193704636 end time Sep-23-09 18:57:41 PDT)

 

[bucket]

Does anyone know if the tapped holes in the air intake plenum can be repaired using heilcoils ? The thread cavities in the plenum appear to be large enough, but I am not sure.

WTS

working on old american motorcycles gave me a lot of experience with heli-coils..
the unit when installed properly is stronger than the original threads....
i have never seen one fail..

 

[WTS]

I know some people stand by heilcoils but I never wanted to go that route. I like the idea of tapping the hole out and re-threading in a standard or larger metric bolt. Some will complain about tolerances in those situations but that is my 2 cents.

- Harbor Freight Tools - Quality Tools at the Lowest Prices

This too is a good idea !

Thanks

WTS

 

[WTS]

Plenums are still fairly inexpensive these days.

So, if you want to save yourself the time and effort for tapping and threading... I found one on ebay. FWIW- They sell for about $39.
85-88 Camaro/Firebird/Corvette TPI PLENUM 86 87 350 305:eBay Motors (item 370193704636 end time Sep-23-09 18:57:41 PDT)

Thanks, I will take at look at it.

Regards

WTS

 

[Dynosoar]

I have found that helicoils and aluminum dont mix well. I much prefer to use time-serts. They are threaded insets not just a flimsy spring like a heli coil.

Dyno