Author Topic: Coolant Issue  (Read 3821 times)

Ruffus

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Re: Coolant Issue
« Reply #15 on: October 05, 2024, 06:19:54 PM »
One thing came in my mind!
Did you check/renew all  fuses?

If yes and okay, then interchange relays

Thermoswitch: both cables off, connect them with a paperclip or similar
-ignition on, fan should kick in
-kicks in = thermoswitch faulty
Happy and safe scootering, Ruffus

agilebda

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Re: Coolant Issue
« Reply #16 on: October 06, 2024, 10:56:03 PM »
Thanks Ruffus.
Checked the fuses today and all were fine. Not quite sure that I understand you on the relay paperclip test. Can you show me with this diagram attached? 

Ruffus

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Re: Coolant Issue
« Reply #17 on: October 07, 2024, 08:28:52 PM »
With everything in place, take this two cables which lead to your thermoswitch, off.
-connect them with a paperclip or short piece of wire
-ignition on
-fan kicks in?
If YES, your thermoswitch needs to be renewd.

With interchanging relays I meant, change horn relay with indicator, or otherwise to see whether they are ok, as far possible from connectors configuration.
« Last Edit: October 07, 2024, 08:36:12 PM by Ruffus »
Happy and safe scootering, Ruffus

agilebda

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Re: Coolant Issue
« Reply #18 on: October 08, 2024, 07:23:57 PM »
With everything in place, take this two cables which lead to your thermoswitch, off.
-connect them with a paperclip or short piece of wire
-ignition on
-fan kicks in?
If YES, your thermoswitch needs to be renewd.

With interchanging relays I meant, change horn relay with indicator, or otherwise to see whether they are ok, as far possible from connectors configuration.

Thanks very much. I understand now. Will give this a try tonight.

agilebda

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Re: Coolant Issue
« Reply #19 on: October 08, 2024, 09:49:25 PM »
Tried everything with no luck. Extremely difficult to pop that bleed screw or hose back on when the coolant is boiling hot.
I changed the thermoswitch. New relay. I'm stomped!
« Last Edit: October 08, 2024, 09:57:37 PM by agilebda »

Ruffus

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Re: Coolant Issue
« Reply #20 on: October 12, 2024, 08:00:21 PM »
My last straw:
-is your repaired coolantpump really working?
There is the chance to block the impeller/bearing by wrong mounting or too much pressure when installing.

Is there the possibility something got into a hose, a piece of rubber etc.?

Open the thermostate housing, take the thermostate completely out, close again and try (pls see pic)
« Last Edit: October 13, 2024, 03:41:27 PM by Ruffus »
Happy and safe scootering, Ruffus

agilebda

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Re: Coolant Issue
« Reply #21 on: October 13, 2024, 11:21:53 PM »
My last straw:
-is your repaired coolantpump really working?
There is the chance to block the impeller/bearing by wrong mounting or too much pressure when installing.

Is there the possibility something got into a hose, a piece of rubber etc.?

Open the thermostate housing, take the thermostate completely out, close again and try (pls see pic)

Hello Ruffus. I will give this a shot. I'm pretty sure that the pump is working fine. When i revv the throttle up when bleeding the coolant, the stream pisses out stronger as the rpm increases. I have a new relay on the way. I will give it a shot with cleaning out the thermostat . One thing that I noticed is when the coolant gets hot, the radiator is cool as if the coolant isn't flowing through that area.
 

Ruffus

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Re: Coolant Issue
« Reply #22 on: October 14, 2024, 01:53:52 PM »
....the coolant gets hot, the radiator is cool as if the coolant isn't flowing through that area....

This might mean either the thermostate is blocking or some hose is clogged.
Happy and safe scootering, Ruffus

agilebda

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Re: Coolant Issue
« Reply #23 on: November 04, 2024, 02:50:03 AM »
Okay...so I've tried everything that Ruffus has stated and suggested. That fan still wouldnt kick in. How do I know if the head gasket isn't or is blown and needs to be replaced? I don't see any coolant dripping from the head gasket area. This is the only thing that I can think of which will prevent the fan switch kicking in.

Ruffus

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Re: Coolant Issue
« Reply #24 on: November 04, 2024, 06:46:34 PM »
If the headgasket would be shot., you would have steamy white emissions from your muffler.
Pls go from beginning everything through again.
-pump
-hoses
-fan direct connected
-thermostate out
-system pressure hosed through with waterhose
-radiator off scooter and hosed /rinsed
The culprit must be found.
Happy and safe scootering, Ruffus

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