Washer Nozzles Options

[yeahmag]

Seems like there is some wild pricing from cheap to expensive on replacement washer nozzles for the 914. Anybody have a recommended replacement?

[914Sixer]

Autohausaz.com
Chrome with check valve $19.55 70-73
Black plastic $5.27 74-76

Both have adjustable sprayer.

[kgruen2]

Autohausaz.com
Chrome with check valve $19.55 70-73
Black plastic $5.27 74-76

Both have adjustable sprayer.

What do the check valves under the nozzles check? Are they necessary? There appears to have been a change in the nozzles in mid '74. What is the difference in the earlier ones and the new and improved later ones? Are they interchangeable?
I switched my pneumatic system to an electric pump system. Would that make a difference? Any thoughts?

[jkb944t]

Autohausaz.com
Chrome with check valve $19.55 70-73
Black plastic $5.27 74-76

Both have adjustable sprayer.

What do the check valves under the nozzles check? Are they necessary? There appears to have been a change in the nozzles in mid '74. What is the difference in the earlier ones and the new and improved later ones? Are they interchangeable?
I switched my pneumatic system to an electric pump system. Would that make a difference? Any thoughts?

I believe that the check valve is to prevent the low pressure area created by the windshield from siphoning out all of the windshield fluid especially at high speeds.

Jeff B

[BillC]

Autohausaz.com
Chrome with check valve $19.55 70-73
Black plastic $5.27 74-76

Both have adjustable sprayer.

What do the check valves under the nozzles check? Are they necessary? There appears to have been a change in the nozzles in mid '74. What is the difference in the earlier ones and the new and improved later ones? Are they interchangeable?
I switched my pneumatic system to an electric pump system. Would that make a difference? Any thoughts?

I believe that the check valve is to prevent the low pressure area created by the windshield from siphoning out all of the windshield fluid especially at high speeds.

Jeff B

Actually, the base of the windshield is a high pressure area. That's why the fresh air intake is there (and why cowl-induction hoods were invented).

The check valves are to keep the washer fluid from draining back into the reservoir, which would cause a delay in squirting when the washers are activated.

[kgruen2]

Autohausaz.com
Chrome with check valve $19.55 70-73
Black plastic $5.27 74-76

Both have adjustable sprayer.

What do the check valves under the nozzles check? Are they necessary? There appears to have been a change in the nozzles in mid '74. What is the difference in the earlier ones and the new and improved later ones? Are they interchangeable?
I switched my pneumatic system to an electric pump system. Would that make a difference? Any thoughts?

I believe that the check valve is to prevent the low pressure area created by the windshield from siphoning out all of the windshield fluid especially at high speeds.

Jeff B

Actually, the base of the windshield is a high pressure area. That's why the fresh air intake is there (and why cowl-induction hoods were invented).

The check valves are to keep the washer fluid from draining back into the reservoir, which would cause a delay in squirting when the washers are activated.

Thx guys for the responses. What I learned is that I should use them, regardless of the difference of opinion on aerodynamics.