Transmission filter change
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Joined: Mar 2019
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Transmission filter change
Doing a transmission filter change on my 1980. When adding the transmission fluid I would like to add Blue Devil seal conditioner to it. I did see a few drops of fluid on the floor of garage. It is a 350 turbo automatic. 115,000 kms.
Last edited by Nickster2212; May 11, 2022 at 05:59 PM.
Melting Slicks
Joined: Oct 2000
Posts: 2,144
Likes: 195
From: Englewood FL
Before I added any additive, I would try to determine where the leak is coming from. A leak can come from the pan, selector shaft, speedometer gear housing or the front and rear seals. Only the replacing of the front seal, requires removing the transmission. The rest can be fixed with the transmission in the car. If it is the front seal, some seal conditioner may stop or slow the leak. The pans can leak, as people often overtighten the bolts. Remove the pan, and check for straightness.
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
There are a few ATFs that claim to revitalize old seals and gaskets. Do they work? IDK.
Kind of like Stop Leak for radiators. It's a "band aid" fix.
I can tell you not to cheap out on the pan gasket.
There are paper ones for $5. Silicone rubber for $30.
How about something in between, will work just fine.
Here is Permatex Auto Trans gasket sealant. Part # 81180. Its ATF proof.
You can check around at your local car part stores web sites. I found it on eBay for about $11.
Kind of like Stop Leak for radiators. It's a "band aid" fix.
I can tell you not to cheap out on the pan gasket.
There are paper ones for $5. Silicone rubber for $30.
How about something in between, will work just fine.
Here is Permatex Auto Trans gasket sealant. Part # 81180. Its ATF proof.
You can check around at your local car part stores web sites. I found it on eBay for about $11.
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
It would likely be Inch-Pounds, so why bother with a torque wrench? You are more likely to break something that small. Just like Valve Cover, Timing Cover bolts.
A very safe tool to use for small bolts is a Quarter Inch Drive Ratchet & Socket set.
No torque wrench needed, just a smidge past snug works every time without snapping fasteners.
When you are snugging the bolts, use a crisscross pattern.
In the future, double check all the bolts.
A very safe tool to use for small bolts is a Quarter Inch Drive Ratchet & Socket set.
No torque wrench needed, just a smidge past snug works every time without snapping fasteners.
When you are snugging the bolts, use a crisscross pattern.
In the future, double check all the bolts.
