Speedometer cluster Inst. question

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Feb 18, 2010 | 01:21 PM

nikic6

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Racer

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From: Hertford NC

Speedometer cluster Inst. question

On the back of the Tach of my 1969 Corvette there is an electrical solenoid. on the back side of the solenoid is a vacuum fitting. the vacuum fitting has one connection coming streight out of the solenoid and one at right angle. I see only one vacuum line to attach to the solenoid. Which fitting does it attach to?

Feb 18, 2010 | 01:48 PM

DZRick

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From: Syracuse NY

This should help you out.

Feb 18, 2010 | 02:01 PM

nikic6

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Racer

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From: Hertford NC

Quote:

Originally Posted by DZRick

This should help you out.

Great diagram, thanks. On item 20 in the picture, what is the rectangle on the back of the solenoid vacuum fitting? Is this blocking off this port?

Feb 18, 2010 | 02:05 PM

DZRick

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From: Syracuse NY

Quote:

Originally Posted by nikic6

Great diagram, thanks. On item 20 in the picture, what is the rectangle on the back of the solenoid vacuum fitting? Is this blocking off this port?

It's a small foam filter, I understand you can make your own hopefully someone will post what to use and where to purchase it for you.

Feb 18, 2010 | 02:14 PM

Easy Mike

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From: Southbound

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The solenoid in question is part of the wiper door operation. You need it.

Feb 18, 2010 | 03:04 PM

nikic6

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Racer

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From: Hertford NC

Quote:

Originally Posted by DZRick

It's a small foam filter, I understand you can make your own hopefully someone will post what to use and where to purchase it for you.

Any help on how to make this filter or where to purchase one?

Feb 18, 2010 | 07:13 PM

DZRick

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From: Syracuse NY

Quote:

Originally Posted by nikic6

Any help on how to make this filter or where to purchase one?

I remember someone posting that you could buy the foam needed at a hobby shop, if I remember correctly they said it needs to be 1/2" square.

Feb 18, 2010 | 10:26 PM

7T1vette

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From: Crossville TN

It is just a 1/2" cube of open-cell foam. That fitting is just a 'vent' for the equalization of pressure (as needed by the system when it switches states) and the foam merely prevents dirt/dust from entering the solenoid/switch when vacuum is vented through it. Just find a piece of soft foam material which you can blow some air through; if it completely blocks air flow, it must be a closed-cell type foam and will not work. Foam material used on vacuum cleaner filters or air purification units would work well.