SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: Jetboat949 on March 15, 2017, 09:12:00 AM

Title: Grease?
Post by: Jetboat949 on March 15, 2017, 09:12:00 AM

This might be a wildly stupid question but what kind of grease should I use for a jet pump?  I'm guessing marine but I'm not sure if there's some other special kind?  Thanks! 😂


Matt

Who farted?

Title: Re: Grease?
Post by: Southwind Danny on March 15, 2017, 06:54:16 PM

A grease that's rated for high temp and water should work, but ny grease is better than nothing.


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Title: Re: Grease?
Post by: GT Jets on March 15, 2017, 08:03:10 PM

Lucas Red and Tacky Home Depot), Amsoil Marine Synthetic (me), Chevron waterproof Synthetic (Grainger), Aqua Lube (absolute mother fugger to clean up).......


All work great. You're looking for lithium based.

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Title: Grease?
Post by: Six-Oh-Nine on March 15, 2017, 10:13:29 PM

.

Title: Re: Grease?
Post by: 76Challenger on March 16, 2017, 08:52:03 PM

Is there a reason not to use 90 weight gear oil in my Berkeley's eye holes? That's all the pump had known for 40 years...

1976 and 1977 Challengers

Title: Re: Grease?
Post by: GT Jets on March 16, 2017, 09:02:27 PM

Quote from: 76Challenger on March 16, 2017, 08:52:03 PM

Is there a reason not to use 90 weight gear oil in my Berkeley's eye holes? That's all the pump had known for 40 years...

1976 and 1977 Challengers

Berkeley bowl bearings do best in oil.

The grease being talked about is for the thrust bearing....

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Title: Re: Grease?
Post by: 76Challenger on March 16, 2017, 09:13:01 PM

Gotcha sorry I misunderstood. I have heard of people replacing the plugs with zirks and I never understood that. thanks GT

1976 and 1977 Challengers

Title: Re: Grease?
Post by: GT Jets on March 16, 2017, 09:20:01 PM

Quote from: 76Challenger on March 16, 2017, 09:13:01 PM

Gotcha sorry I misunderstood. I have heard of people replacing the plugs with zirks and I never understood that. thanks GT

1976 and 1977 Challengers

Many have done it. The issue is the bearings are Babbitt. Once the grease is displaced, it's like it's not there. The bowl does not get warm enough to drop the oil out of the base. A roller element bearing is a different story.

GT

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Title: Re: Grease?
Post by: 76Challenger on March 16, 2017, 09:21:29 PM

Thanks helpful as always

1976 and 1977 Challengers

Title: Re: Grease?
Post by: Your Mom on March 16, 2017, 09:23:20 PM

Quote from: 76Challenger on March 16, 2017, 09:13:01 PM

Gotcha sorry I misunderstood. I have heard of people replacing the plugs with zirks and I never understood that. thanks GT

1976 and 1977 Challengers

I did that on 2 berk bowls without any issues... If you do plan on it though, get a center tap an mark the outer facing around the inside o-ring. Berks didn't have a seal clip an pressure could slide the inner seal off.

Title: Re: Grease?
Post by: 76Challenger on March 16, 2017, 09:29:57 PM

Mine has worked just fine for over 40 years with A LOT of use with just gear oil I think I will leave well enough alone lol

1976 and 1977 Challengers

Title: Re: Grease?
Post by: Rivernut on March 17, 2017, 08:50:43 PM

Mobil1 synthetic.  Great reputation, widely available, and always mentioned in these discussions on jet boat forums.

Title: Re: Grease?
Post by: GT Jets on March 17, 2017, 09:15:15 PM

Quote from: Rivernut on March 17, 2017, 08:50:43 PM

Mobil1 synthetic.  Great reputation, widely available, and always mentioned in these discussions on jet boat forums.

Mobil 1 is a brand, not type. Use the lithium or the SHC type.

There are quite a few greases available from Mobil.

Great stuff, we use the Chevron stuff at work, same basic stuff.

GT

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Title: Re: Grease?
Post by: GT Jets on March 17, 2017, 09:17:38 PM

Quote from: GT Jets on March 17, 2017, 09:15:15 PM

Mobil 1 is a brand, not type. Use the lithium or the SHC type.

There are quite a few greases available from Mobil.

Great stuff, we use the Chevron stuff at work, same basic stuff.

GT

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And information only, not bagging.....

GT

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