Motor Flushing

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Unprr
Posts: 286
Joined: Mon Jan 07, 2019 9:20 pm
First Name: George
Last Name: Schmidt
* REQUIRED* Type and Year of Model Ts owned: 1927 coupe, 1924 Model T pickup
Location: Elkhorn

Motor Flushing

Post by Unprr » Tue May 16, 2023 2:39 pm

I received my new Brassworks radiator but before installing it, I want to flush the motor. I have been researching different ways to do it. The one process I have been leaning to, is using CLR to remove the gunk buildup.
My question is, has anyone used CLR, how long did you leave it in the motor, did it remove the gunk.
Any other suggestions are welcome.

George Schmidt
Elkhorn, Nebraska


jiminbartow
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First Name: James
Last Name: Patrick
* REQUIRED* Type and Year of Model Ts owned: 1926 Coupe
Location: Bartow, FL
Board Member Since: 2001

Re: Motor Flushing

Post by jiminbartow » Tue May 16, 2023 4:10 pm

CLR is an acidic cleaner. I would be very cautious about using it in the cast iron water jacket of the engine block, for cast iron reacts much more aggressively to acid in that its’ porous surface deteriorates and breaks down much faster than steel. Jim Patrick
Last edited by jiminbartow on Tue May 16, 2023 9:09 pm, edited 1 time in total.


Scott_Conger
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First Name: Scott
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* REQUIRED* Type and Year of Model Ts owned: 1919
Location: not near anywhere, WY
Board Member Since: 2005

Re: Motor Flushing

Post by Scott_Conger » Tue May 16, 2023 4:17 pm

a hose, rubber stopper, air compressor and an optional rain suit

if the engine has been run with coolant, there will be very little large material that will need to come out, and what is there will yield pretty quickly to the above
Scott Conger

Tyranny under the guise of law is still Tyranny

NH Full Flow Float Valves™
Obsolete carburetor parts manufactured

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JBog
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* REQUIRED* Type and Year of Model Ts owned: 1919 Touring
Location: Cheyenne, WY
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Re: Motor Flushing

Post by JBog » Tue May 16, 2023 4:38 pm

I used vinegar. Let it sit for 24 hours then flushed with baking soda and hose water then just water really good.

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Craig Leach
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* REQUIRED* Type and Year of Model Ts owned: 1919 Firetruck/1922 Speedster
Location: Laveen Az

Re: Motor Flushing

Post by Craig Leach » Tue May 16, 2023 6:19 pm

Hi George,
Search Zep on this forum & Use of Vinegar to Clean Radiators. there will be old posts on the subject. If you use vinegar be sure to get industrial
grade vinegar the stuff in the grocery store is very much more dilluted.
Craig.

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