Wipers

[Eric S]

When I put the wipers on,blades stops at 1/3 or 2 o'clock
when off they go down
On, they rose again 1/3

where can I start?

[jopizz]

It sounds like the vacuum motor may be bad. I would also check the vacuum hose to make sure it's not leaking.

John

[Eric S]

Will check the hoses before we leave for the week-end tomorrow morning
Hopefully it will be a quick fix.
If it's the motor, I will have to work on that later.

[Eric S]

Checked the hose, it's been repaired with tape but seems tight.
Tried to help linkage by hand but it blocks either in the motor or the linkage blocks against something.
Will have to check after the week-end.

[Eric S]

That's the hose from carburettor, right?
I have been told it was linked to gas pump?
Sorry can't check, we're on the road ...

[jopizz]

It should go from the intake manifold to the fuel pump and then from the fuel pump to the wiper motor. It's similar to the system on your Squarebirds.

John

[Eric S]

I don't have this on the fuel pump, see picture below.
I can see a hose going from carburettor through the firewall.
Further testing made the wipers work "full length" for a while then stopped.
So no blockage, probably a problem in the motor.
Where on the manifold the hose should go, can see no un-used port.

[jopizz]

I've only had a couple of Y blocks and it's normally right in front of the carburetor. If you don't have any manifold ports open then coming out of the carburetor is fine. However going directly to the wipers without the fuel pump will give your wipers less than great performance. The fuel pump vacuum helps to keep the wipers going under load.

John

[Eric S]

Here is the manifold, can't see any vacuum port!?
hoses goes from the carburettor, under the dashboard, then into a T going to wiper motor and a device on the heater hose at the manifold!

[Eric S]

I had problem uploading pictures IMG_20230612_100936_048.jpg IMG_20230612_100952_080.jpg IMG_20230612_105508_929.jpg