Power steering cap leak
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
Power steering cap leak
Has anyone else been through multiple power steering caps to finally find one that doesnt leak? My 79 has a parts store replacement pump, and parts store replacement cap (about the 5th one over the years). In the almost 18 years I've had my car I dont think the power steering has ever not leaked. It looks like this is the last leak to solve 🤞🤞. What have yall done to solve power steering cap leaks?
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
Race Director
Joined: May 2006
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Has anyone else been through multiple power steering caps to finally find one that doesnt leak? My 79 has a parts store replacement pump, and parts store replacement cap (about the 5th one over the years). In the almost 18 years I've had my car I dont think the power steering has ever not leaked. It looks like this is the last leak to solve 🤞🤞. What have yall done to solve power steering cap leaks?
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
Melting Slicks
Joined: Sep 2016
Posts: 2,212
Likes: 969
From: Wauconda IL
You must have a 1984 and up P/S pump reservoir. According to the google machine, that part number fits 1984 to 2002.
https://www.google.com/search?q=2609...t=gws-wiz#ip=1
https://www.google.com/search?q=2609...t=gws-wiz#ip=1
Le Mans Master
Joined: Jan 2007
Posts: 7,947
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From: Omaha NE
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
2022 C3 of the Year Finalist - Unmodified
2020 C3 of the Year Finalist - Unmodified
I bought my '76 new & it's still original.
Maybe the only thing that hasn't leaked in the P/S system is the cap...
Maybe the only thing that hasn't leaked in the P/S system is the cap...
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Le Mans Master
Joined: Aug 2017
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From: Cool Northern Michigan
Try to find a 8 x 11 sheet of cork that is made for automotive. I found a sheet made by FelPro about 1/8" thick for making gaskets.
Somehow trace out the caps inside diameter, cut out with scissors and slip your new the cork gasket over the upside down cap and dipstick on your workbench.
Work the cork until you have a good fit. I may have RTV on it too. The cork stopped my leaky cap and now the cap fits super tight.
Somehow trace out the caps inside diameter, cut out with scissors and slip your new the cork gasket over the upside down cap and dipstick on your workbench.
Work the cork until you have a good fit. I may have RTV on it too. The cork stopped my leaky cap and now the cap fits super tight.
Thread Starter
Le Mans Master
Joined: Oct 2005
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From: Glen Allen, VA
Melting Slicks
Joined: Sep 2004
Posts: 3,223
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From: Northeast
[QUOTE=C3 4ME;1606659759]center vent hole? On the cap? I wasnt aware that there's a center vent hole. The fluid is definitely running from the top of the reservoir on down.[/QUOTE
My 78 service manual addresses the problem.
"check oil level. If leakage persists with the level right and cap tight, replace the cap"
I have the old regular cap without any extra gaskets and no leaks.
Edit: Do have the hole in the bottom of the tube for which MelWff speaks. .
My 78 service manual addresses the problem.
"check oil level. If leakage persists with the level right and cap tight, replace the cap"
I have the old regular cap without any extra gaskets and no leaks.
Edit: Do have the hole in the bottom of the tube for which MelWff speaks. .
Last edited by BKarol; May 24, 2023 at 08:48 AM.
Heel & Toe
Joined: Apr 2023
Posts: 23
Likes: 2
From: Shirley, New York
check for aeration of the fluid, meaning air bubbles or foam in the reservoir. This will cause fluid to push out of the reservoir via the cap. If this is the case, look for a leak on the return line.
Race Director
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Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA