Transom Bolts silicone?

[Estoman]

I was told to remove the transom bolts one at a time and put silicone in the holes and then re tourque the bolts again. This is apparently to stop any water from getting into the transom. Is there any specific type of silicone I should be using?

Estoman

 

[tashasdaddy]

Re: Transom Bolts silicone?

i prefer using 3m 4200, personally silcone has not purpose, as it has a tendency not to hold up, does not adhere to certain surfaces.

 

[SuperNova]

Re: Transom Bolts silicone?

i prefer using 3m 4200, personally silcone has not purpose, as it has a tendency not to hold up, does not adhere to certain surfaces.

I second that. And third it, too

 

[Scaaty]

Re: Transom Bolts silicone?

Guess I'll just have "Fourple" it then..

 

[jack361@centurytel.net]

Re: Transom Bolts silicone?

so where do you buy it??

 

[Scaaty]

Re: Transom Bolts silicone?

so where do you buy it??

3M Fast Cure 4200 any boat store, or Walmart in the boating section...

 

[craig stevens]

Re: Transom Bolts silicone?

sikaflex

 

[Scaaty]

Re: Transom Bolts silicone?

"BoatFix" caulk OK too

 

[j_martin]

Re: Transom Bolts silicone?

I have an 88 tracker that was "sealed" with bathtub calk. Now I'm dealing with transom rot and repairs.

I would use 4200 or better, and I would be sure the inside of the hole had a good coat before I put the bolt in. When I rebuild the transom, it will have metal sleeves where the bolts go, sealed in with resin.

hope it helps
John

 

[MikDee]

Re: Transom Bolts silicone?

Isn't 4200, or 5200, a bit too hard? overkill? I would guess you'd never get the bolts out again using this, I doubt you'd be able to remove them to move your motor up, or down, to adjust height afterwards.

 

[SuperNova]

Re: Transom Bolts silicone?

Isn't 4200, or 5200, a bit too hard? overkill? I would guess you'd never get the bolts out again using this, I doubt you'd be able to remove them to move your motor up, or down, to adjust height afterwards.

I didn't see anybody recommend 5200. I wouldn't consider 4200 overkill, depends on how you use it. 5200 would be overkill.
--
Stan

 

[Esox]

Re: Transom Bolts silicone?

Isn't 4200, or 5200, a bit too hard? overkill? I would guess you'd never get the bolts out again using this, I doubt you'd be able to remove them to move your motor up, or down, to adjust height afterwards.

I've used 4200 and haven't had any problem removing the bolts.

 

[gcboat]

Re: Transom Bolts silicone?

Here's a little reading for ya'. Might just clarify your intended need:
http://www.boatus.com/boattech/casey/35.htm

 

[gss036]

Re: Transom Bolts silicone?

I think that link is very informative, but does not mention engine mounting. I've often wondered what was used when my engine was mounted back in 1989. It is very hard and cream colored.
I think something semi-perm, such as 4200.

 

[fishdog4449]

Re: Transom Bolts silicone?

I always use standard silicone sealant for the transducer bolts and engine mounts. It will expand and contract with temperature and will prevent your hull from rotting.

 

[Mark42]

Re: Transom Bolts silicone?

I used BoatLife caulk. It is clear, and when you want to remove the parts, it will come apart. Its been on my boat for a few years with no sign of leaking or coming off.

 

[SuperNova]

Re: Transom Bolts silicone?

I always use standard silicone sealant for the transducer bolts and engine mounts. It will expand and contract with temperature and will prevent your hull from rotting.

The problem with silicone is it doesn't stick well to either metal or fiberglass. It does an alright job, but there are better options.

 

[jack361@centurytel.net]

Re: Transom Bolts silicone?

we might be going in a circle
link indicates polysulfide would be best to use

what is brand and where to get?

 

[j_martin]

Re: Transom Bolts silicone?

I didn't see anybody recommend 5200. I wouldn't consider 4200 overkill, depends on how you use it. 5200 would be overkill.
--
Stan

I use 5200 on wood screws. That way they don't back out.

John

 

[1730V]

Re: Transom Bolts silicone?

4200 hardens, over time and it makes engine removal very difficult. 5200 remains pliable. I use 5200.