What model Hynautic Ram is this?

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tcollins2
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What model Hynautic Ram is this?

Post by tcollins2 » Thu Aug 23, 2018 3:53 pm

I can't find any model number on the unit.

It's from 12 Meter Express.
It's about 16 inches long.
Here is youtube link.

https://youtu.be/ILgwrJuqaY0
1990 Trojan 12M International Express Detroit Diesels 6-71T's, 425HP

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Re: What model Hynautic Ram is this?

Post by BeaconMarineBob » Fri Aug 24, 2018 2:26 pm

We have the rebuild kit for the ram $78.12 plus USPS

We also have the ball joint ends.

Trojan part number was 21-334 for the ram.

It does not appear that ram is available any more there is one the same size but does not mount the same. It could be tricky to make it fit.

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tcollins2
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Re: What model Hynautic Ram is this?

Post by tcollins2 » Fri Aug 24, 2018 3:33 pm

Thanks.
No repair needed, just trying to find capacity size (displacement) in cc's.
Need that number to find appropriate size of autopilot pump.
1990 Trojan 12M International Express Detroit Diesels 6-71T's, 425HP

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Re: What model Hynautic Ram is this?

Post by P-Dogg » Sat Aug 25, 2018 12:25 pm

tcollins2 wrote:
Fri Aug 24, 2018 3:33 pm
just trying to find capacity size (displacement) in cc's.
How close do you need to be?

Measure OD of cylinder.
Subtract 0.125"
Measure stroke length.
Multiply to get volume, convert to cc's.


4 tie rods look easy enough to remove to determine actual bore, if needed. Note that different amounts of fluid are needed to turn to port vs. starboard.
I needed a less expensive hobby, so I bought a boat!

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