WD 40 Test was HOWELL TBI

[chuck blanford]

Thanks Marcus! I know more today than I did last night!

Chuck

From: Marcus McGee
Subject: Re: GMC: WD 40 Test was HOWELL TBI

>The WD40 test no longer is applicable to vac leaks. The old WD had propane
in
>the propellant and when the propane was sucked into the leak the engine
>responded. The new WD 40 has no propane or flamable gas in the
propellant - so
>no engine response. Same test can be done with a propane torch (not lit -
of
>course). As the propane is sucked in by the vac leak the engine responds.
>
>Marcus
>

>

>>
>> >All my plugs look the same. Even the two that would not "CANCEL" look
>> just
>> >like the other six. I can detect no vacuum leak on the manifold with
the
>> >WD-40 spray test and I have no water leaks. So at this point I would
have
>> >to guess the manifold is OK.
>>
>> Jerry
>>
>> What's the "WD-40 Spray Test"? That's a new one for me!
>>
>> Chuck
>> 77 K
>> North ID
>
>

 

[marcus mcgee]

The WD40 test no longer is applicable to vac leaks. The old WD had propane in
the propellant and when the propane was sucked into the leak the engine
responded. The new WD 40 has no propane or flamable gas in the propellant - so
no engine response. Same test can be done with a propane torch (not lit - of
course). As the propane is sucked in by the vac leak the engine responds.

Marcus

>
> >All my plugs look the same. Even the two that would not "CANCEL" look
> just
> >like the other six. I can detect no vacuum leak on the manifold with the
> >WD-40 spray test and I have no water leaks. So at this point I would have
> >to guess the manifold is OK.
>
> Jerry
>
> What's the "WD-40 Spray Test"? That's a new one for me!
>
> Chuck
> 77 K
> North ID

 

[thomas g. warner]

when you spray he WD 40 on the manifold in small areas if it disappears
there is a leak.That simple.

>The WD40 test no longer is applicable to vac leaks. The old WD had propane in
>the propellant and when the propane was sucked into the leak the engine
>responded. The new WD 40 has no propane or flamable gas in the propellant - so
>no engine response. Same test can be done with a propane torch (not lit - of
>course). As the propane is sucked in by the vac leak the engine responds.
>
>Marcus
>

>

>>
>> >All my plugs look the same. Even the two that would not "CANCEL" look
>> just
>> >like the other six. I can detect no vacuum leak on the manifold with the
>> >WD-40 spray test and I have no water leaks. So at this point I would have
>> >to guess the manifold is OK.
>>
>> Jerry
>>
>> What's the "WD-40 Spray Test"? That's a new one for me!
>>
>> Chuck
>> 77 K
>> North ID
>
>
>

 

[marcus mcgee]

Not the way I was taught, but that works too. The only time we used WD was when we
did not have the propane. This was on some side draft MG and Jag engines so the WD
fluid could not be used on the underside.

Good trick Tom

Marcus

> when you spray he WD 40 on the manifold in small areas if it disappears
> there is a leak.That simple.
>

> >The WD40 test no longer is applicable to vac leaks. The old WD had propane in
> >the propellant and when the propane was sucked into the leak the engine
> >responded. The new WD 40 has no propane or flamable gas in the propellant - so
> >no engine response. Same test can be done with a propane torch (not lit - of
> >course). As the propane is sucked in by the vac leak the engine responds.
> >
> >Marcus
> >

> >

> >>
> >> >All my plugs look the same. Even the two that would not "CANCEL" look
> >> just
> >> >like the other six. I can detect no vacuum leak on the manifold with the
> >> >WD-40 spray test and I have no water leaks. So at this point I would have
> >> >to guess the manifold is OK.
> >>
> >> Jerry
> >>
> >> What's the "WD-40 Spray Test"? That's a new one for me!
> >>
> >> Chuck
> >> 77 K
> >> North ID
> >
> >
> >