Latest Posts:
flame9-19-2024 Three Word Post.....The Next Generation.... (Rep.#19,291) from: GoFastRacerflameflame9-19-2024 Not boat related (Rep.#5) from: GoFastRacerflameflame9-18-2024 The Totally Useless Thread IV (Rep.#129) from: stingrayflameflame9-17-2024 Line fire  San Berdo Evacuations (Rep.#12) from: stingrayflameflame9-17-2024 Totally Useless PICTURE Thread (Rep.#973) from: stingrayflame
Home » HD Forums » Forums » Boat Tech » Hardware
No members are browsing this topic
Forum Led by: GoFastRacer
 

[ Track this topic :: Email this topic :: Print this topic ]
add a reply to this topic create a new topic create a new poll
Sleek-JetMale Offline
Aquarius
 HDF Supporter
The Cooler
5,000 post flame1,000 post flame100 post flame100 post flame100 post flame
Batavia, IL
Posts: 6,351
APPD 0.80
Post Rank: 11
Big 'Ole Inner-tube
Post Icon Posted: Nov. 12 2003,5:35 pm Post # 1 see this member send this member a private message  quote this post in reply
I need to replace most of the hardware on the boat before I get to seriouse about anything else.  Most of the stuff I have now is a hodge-podge collection of steel and stainless.  I want to go all stainless.  Here's my question.  

I've been looking in the industrial supply catalogs and have found two types of stainless hardware, Type 316 and 18-8 stainless.  Both show minimum tensile strength of 70,000 psi (I have no idea what the shear load is).  Will this be adequate for the motor plates and hull attachments for the motor, or do I need to go with something stronger??  If I need to go stronger, what does anyone suggest??

Edited by Sleek-Jet on Nov. 12 2003,6:04 pm

A dog doesn't care if you're rich or poor, educated or illiterate, clever or dull. Give him your heart and he will give you his.
Back to top
| Member # 81 | Joined: 2-07-2003 |
GoFastRacerMale Offline
 HDF Supporter
V-Driver For Life!
50,000 post flame10,000 post flame1,000 post flame1,000 post flame500 post flame100 post flame
Big River, Ca
Posts: 62,625
APPD 7.96
Post Rank: 1
Spectra20
Post Icon Posted: Nov. 12 2003,7:00 pm Post # 2 see this member send this member a private message  quote this post in reply
For general hardware mounting don't worry about it, just go to a bolt place and buy regular stainless nuts and bolts, that's plenty adequate!. Driveline bolts or anything under stress, get plated grade 8 bolts. I would suggest using grade 8 bolts for the motor plates also if you plan on the motor being removed often (storage, drain the oil,etc).

ALSO! Do NOT install stainless nuts and bolts dry, they will NOT come off, use a moly grease and you will be fine!.. :good
Back to top
website  | Member # 101 | Joined: 3-03-2003 |
Sleek-JetMale Offline
Aquarius
 HDF Supporter
The Cooler
5,000 post flame1,000 post flame100 post flame100 post flame100 post flame
Batavia, IL
Posts: 6,351
APPD 0.80
Post Rank: 11
Big 'Ole Inner-tube
Post Icon Posted: Nov. 12 2003,7:16 pm Post # 3 see this member send this member a private message  quote this post in reply
Thanks GoFast.  Whoever put that motor in the boat before I got it did an interesting job.  About half the bolts between the motor plates and the mounting brackets, and the brackets to the stringers were grade 5 course thread.  All of those bolts were bent, or stretched, it was pretty scarry.  :eek  The other half were fine thread stainless, they looked fine.  I used those to get the motor mounted in the boat, then I'll go back and replace everything before I fire the engine up.  

Sounds like I'll do everything grade 8 cad platted so it all matches.  :good

A dog doesn't care if you're rich or poor, educated or illiterate, clever or dull. Give him your heart and he will give you his.
Back to top
| Member # 81 | Joined: 2-07-2003 |
GoFastRacerMale Offline
 HDF Supporter
V-Driver For Life!
50,000 post flame10,000 post flame1,000 post flame1,000 post flame500 post flame100 post flame
Big River, Ca
Posts: 62,625
APPD 7.96
Post Rank: 1
Spectra20
Post Icon Posted: Nov. 12 2003,7:20 pm Post # 4 see this member send this member a private message  quote this post in reply
Sounds like a tipical factory dealio from back in the day!. I still would use all stainless except for the stress parts as I mentioned though!.. :good
Back to top
website  | Member # 101 | Joined: 3-03-2003 |
AZKCMale Offline
Leo
 HDF Bronze Supporter
Jack of all trades. Master of none.
10,000 post flame5,000 post flame1,000 post flame100 post flame100 post flame100 post flame100 post flame
Tucson
Posts: 16,439
APPD 2.07
Post Rank: 5
1979 20ft Hawaiian Moonraker
Post Icon Posted: Nov. 13 2003,7:15 am Post # 5 see this member send this member a private message  quote this post in reply
Quote (GoFastRacer @ Nov. 12 2003,7:00 pm)
ALSO! Do NOT install stainless nuts and bolts dry, they will NOT come off, use a moly grease and you will be fine!.. :good

How long does this take to happen? :stupid I know I pull my motor in and out alittle more than I should but the stainless bolts seem to be pretty normal. Maybe I'm not tightening them enough.

KC

Edited by AZKC on Nov. 13 2003,2:56 pm

God is Great, Beer is Good, and People are Crazy......

AUTO SAFETY HOUSE

Back to top
| Member # 29 | Joined: 12-18-2002 |
Essex502Male Offline
Boatless

Santa Clarita, CA and LHC, AZ
Posts: 14
APPD 0.00
Post Rank: 293
Post Icon Posted: Nov. 13 2003,10:10 am Post # 6 see this member send this member a private message  quote this post in reply
Stainless to stainless fasteners can seize with the first tightening. This is guanteed with stainless pipe fittings where you MUST use teflon tape or some other antiseize compound to prevent this from happening. Anytime too stainless surfaces come into contact with substantial pressure you can have seizure with an antiseize compound.

Can't wait to get back to the Lake!
Back to top
| Member # 202 | Joined: 8-28-2003 |
GoFastRacerMale Offline
 HDF Supporter
V-Driver For Life!
50,000 post flame10,000 post flame1,000 post flame1,000 post flame500 post flame100 post flame
Big River, Ca
Posts: 62,625
APPD 7.96
Post Rank: 1
Spectra20
Post Icon Posted: Nov. 13 2003,6:02 pm Post # 7 see this member send this member a private message  quote this post in reply
You got that right!. Also that can happen with AN fittings when you put anno against anno dry, they will gall!.. :(
Back to top
website  | Member # 101 | Joined: 3-03-2003 |
Essex502Male Offline
Boatless

Santa Clarita, CA and LHC, AZ
Posts: 14
APPD 0.00
Post Rank: 293
Post Icon Posted: Nov. 14 2003,12:54 pm Post # 8 see this member send this member a private message  quote this post in reply
I've had it where the stainless steel pipe thread was literally welded to the stainless steel fitting. Couldn't separate the two with the biggest wrench I had. I did use the wrench "upside-the-head" of the fool who put them together that way.

Can't wait to get back to the Lake!
Back to top
| Member # 202 | Joined: 8-28-2003 |
HolyMolyMale Offline
Capricorn
Bitchslapped
100 post flame100 post flame
Canyon Lake
Posts: 279
APPD 0.04
Post Rank: 84
Post Icon Posted: Nov. 14 2003,1:43 pm Post # 9 see this member send this member a private message  quote this post in reply
I typically replace any stainless after one use, and moly grease is a must.  There are McFadden Dale hardware stores in O.C. and Riverside that carry large qty's of stainless at a very good price.  

I also have a habit of cleaning the threads with a tap where I use stainless bolts on the engine and other places that don't have nuts.  Preventitve is so much easier than having to break a bolt, then drill it, and get out the easy out, then try to salvage the bolt hole.

Plus, with new bolts, it always looks very sharp!!
Back to top
| Member # 30 | Joined: 12-19-2002 |
RexoneMale Offline
 HDF Silver Supporter
Parts King
100 post flame
San Dimas, CA
Posts: 171
APPD 0.02
Post Rank: 115
Post Icon Posted: Nov. 22 2003,5:40 am Post # 10 see this member send this member a private message  quote this post in reply
We have lots of stainless too if you need.  

:)

"If you get to thinking you're a person of some influence, try ordering somebody else's dog around." Will Rogers

www.rexmar.com
www.impywheels.com
Back to top
website  | Member # 10 | Joined: 12-04-2002 |
9 replies since Nov. 12 2003,5:35 pm < Next Oldest | Next Newest >
 

[ Track this topic :: Email this topic :: Print this topic ]
add a reply to this topic create a new topic create a new poll

Home » HD Forums » Forums » Boat Tech » Hardware

navbarlogo
The Colorado River WebRing
‹ Prev | Hub | Like | Join | Surprise | Next ›

Please help keep HDF free. If you enjoy this site, feel free to make a donation to keep it running. THANKS!