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by prowlersfish
Sat Apr 20, 2024 3:34 pm
Forum: Trojan Boats Forum
Topic: F 36 prop size
Replies: 4
Views: 10

Re: F 36 prop size

Shaft is 1 3/8"
by prowlersfish
Fri Apr 19, 2024 11:10 pm
Forum: Trojan Boats Forum
Topic: F 36 prop size
Replies: 4
Views: 10

Re: F 36 prop size

I'll apologize up front for interrupting this conversation with a new topic (or at least different stats). I have a 1989 F36 sportfish with twin crusader 454's. The old owner put 4 blade props on the boat and the performance is suffering greatly. PROWLERFISH: Can you tell me the correct prop size a...
by prowlersfish
Sun Apr 14, 2024 11:39 pm
Forum: Trojan Boats Forum
Topic: Thru Hull / Strut Backing Material
Replies: 4
Views: 212

Re: Thru Hull / Strut Backing Material

Polyester should be fine. Here is a link to G10 They have different types. Wood is also fine.

https://www.mcmaster.com/products/~/mul ... ars/?s=g10
by prowlersfish
Sun Apr 14, 2024 10:30 am
Forum: Trojan Boats Forum
Topic: Thru Hull / Strut Backing Material
Replies: 4
Views: 212

Re: Thru Hull / Strut Backing Material

Plywood was used I believe. Todays plywood is not like it used to be I used Oak on mine ( F36). Others have used marine plywood, marine plywood with epoxy, plastic boards and G10 fiberglass I would never use treaded plywood, it has too many voids. If I was to replace my Oak I would go with G10. G10 ...
by prowlersfish
Sun Apr 14, 2024 10:06 am
Forum: Trojan Boats Forum
Topic: Oil Pressure Gauges
Replies: 5
Views: 178

Re: Oil Pressure Gauges

Check around the battery area too.
by prowlersfish
Sun Apr 14, 2024 10:03 am
Forum: Trojan Boats Forum
Topic: Trojan 36' Tri-Cabin Propeller size and Pitch
Replies: 1
Views: 148

Re: Trojan 36' Tri-Cabin Propeller size and Pitch

The Tri cabin never came with 318s. Assuming you're not talking about a tri-fly. They only came with the 360 (250hp) Chrysler and Mercruiser 255hp(351?) Factory props are 20x17. When picking props I often recommend reducing the pitch from factory specs. As very few are in factory new condition/ If f...
by prowlersfish
Sat Apr 13, 2024 7:35 am
Forum: Trojan Boats Forum
Topic: Oil Pressure Gauges
Replies: 5
Views: 178

Re: Oil Pressure Gauges

Assuming nothing was changed it sounds like a ground issue. But it is odd it's the upper and lower. If it was only one engine I would think about a sender issue. Still posable, any work done over the winter?
by prowlersfish
Fri Apr 12, 2024 5:33 pm
Forum: Trojan Boats Forum
Topic: Oil Pressure Gauges
Replies: 5
Views: 178

Re: Oil Pressure Gauges

Check your grounds to the panels.
Is this at idle and warm?
by prowlersfish
Tue Apr 09, 2024 6:15 pm
Forum: Trojan Boats Forum
Topic: old gauges
Replies: 16
Views: 7721

Re: old gauges

Joe, That tach is not original. The hour meter is digital. They did not have digital back then and the OEM tachs were also cable-driven. A new hour meter will be at zero. The OEM would likely say trojan on them. Not sure who made them. Any photos of the other gauges so I can tell you if they are OEM...
by prowlersfish
Sat Apr 06, 2024 7:54 am
Forum: Trojan Boats Forum
Topic: 1974 Trojan F25 soft spots
Replies: 1
Views: 125

Re: 1974 Trojan F25 soft spots

It is possible but it is much better and easier done from the top. I had the same issue and rather than cut it open, I used a product called injectadeck. I was happy withe the results. Here is a link to the thread on my repair https://www.trojanboats.net/wforum/viewtopic.php?p=111878&hilit=injec...
by prowlersfish
Sat Apr 06, 2024 7:46 am
Forum: Trojan Boats Forum
Topic: New to the group & Trojans Buying an 11M Express
Replies: 1
Views: 137

Re: New to the group & Trojans Buying an 11M Express

Congrats and good luck. Make sure the inspection is really a Survey done by a NAMS or a SAMS-accredited surveyor. At 2 years it is time to paint the bottom again. Hope all goes well.
by prowlersfish
Sun Mar 31, 2024 11:09 am
Forum: Trojan Boats Forum
Topic: 1971 Trojan F31 Hardtop - Twin 1971 Chrysler 318's
Replies: 4
Views: 182

Re: 1971 Trojan F31 Hardtop - Twin 1971 Chrysler 318's

Not 100% on what you are looking for. But you can plan on about 1 MPG on plane and maybe 2 MPG below hull speed ( 7 knots or so) While not exact it should be in the ballpark and will vary some on the exact speed, weather conditions, and of course the boat's condition.
by prowlersfish
Fri Mar 29, 2024 9:51 pm
Forum: Trojan Boats Forum
Topic: 1971 Trojan F31 Hardtop - Twin 1971 Chrysler 318's
Replies: 4
Views: 182

Re: 1971 Trojan F31 Hardtop - Twin 1971 Chrysler 318's

You can compare an automotive engine to a marine engine with many differences. Like cams, ignition advance curves to start. starboard engine even turns in the opposite direction than the port.
by prowlersfish
Fri Mar 29, 2024 7:51 pm
Forum: Trojan Boats Forum
Topic: 1971 Trojan F31 Hardtop - Twin 1971 Chrysler 318's
Replies: 4
Views: 182

Re: 1971 Trojan F31 Hardtop - Twin 1971 Chrysler 318's

The 318 is rated at 225hp. Trojan info shows 4000 as top rpm. And it is propped that way. I can try and look up the specs for a new 1971 F31, but it is unlikely an old boat would come close.