Yep, those 4 bolts are most probably the strut bolts.  No big deal to drop
the strut a bit and re-bed it once you haul out.  Until then try to tighten
them.

As I am a bit pessimistic about successfully stopping the leak by
tightening the bolts, go to an auto parts store or a big box hardware store
and get a couple tubes of WaterWeld.

https://www.amazon.com/J-B-Weld-8277-White-Pack/dp/B000BRQ0TW

Work it up per instructions and apply it to the leaks.  At first it won't
seem like it's sticking but keep working it onto the leaks.  After 8-12
minutes it will finally stick.  Now you can finish your season.  At haul
out, you'll have a bit of work removing it but then you can fix the strut.

You may have to re-fair the strut after you re-bed it depending on how
speed oriented you are.

Dennis C.
Touche' 35-1 #83
Mandeville, LA

On Sun, Jun 28, 2020 at 2:41 PM David Swensen via CnC-List <
cnc-list@cnc-list.com> wrote:

> My new to me 1985 35 MKIII was launched a week and a half ago. On the trip
> from Newport RI to Salem, MA last weekend, the bilge pump was getting a
> periodic workout. The water pump was leaking like a sieve, so as soon as I
> could I replaced the pump ( seals to bearings was toast so beyond rebuild).
> I thought my bilge pump could rest. Not so. It is still going off every 5
> -6 minutes, just for a quick burst, removing maybe a cup of water. After a
> sleepless night last night, I paddled out to the boat this morning and
> traced the leak to behind the propeller shaft log. There are 4 bolts that I
> could see after contorting myself behind the fuel tank. I assume they are
> mounting bolts for the strut. These bolts were wet and showed some
> corrosion,and were the apparent source of the stream of water legging under
> the engine and eventually to the bilge. The PO claimed the boat was bone
> dry (Not so said the boat yard in RI). The surveyor did not pick up on
> anything in this area. The boat had been on the hard for 2 years.
> I have a feeling this may be a short season and I will likely need to haul
> the boat to repair.  Has anyone had this problem?
>  Engine mounts are in need of replacement, too. Lots of shaking under 1800
> rpm. This is probably a contributing factor?
> Yes, I have a solar panel to try to keep the battery charged for the bilge
> pump.
> Thanks.
> David Swensen
> Freya
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-- 
Dennis C.
Touche' 35-1 #83
Mandeville, LA
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