25 Merc water pressure
#1
Platinum Member
Platinum Member
Thread Starter
Join Date: Oct 2003
Location: Townsville Australia
Posts: 778
Likes: 0
Received 0 Likes
on
0 Posts
25 Merc water pressure
I know this maybe does'nt belong here but i'm building a mini 25hp race boat.On a 25 Merc 94 model where would you tee in a water pressure gauge?
#4
Registered
Join Date: Sep 2008
Location: Bradenton Fl
Posts: 133
Likes: 0
Received 0 Likes
on
0 Posts
water pressure
Should be a pipe plug on rear water jacket between spark plugs. If not you can tee off telltale but reading might be a little lower than actual pressure but thats not a problem.
#5
Registered
Join Date: Oct 2006
Posts: 54
Likes: 0
Received 0 Likes
on
0 Posts
A rule of thumb if those little motors are pumping a constant stream out the tell tale you will probably be ok ,It is when they start to spurt intermittantly they will get hot.I wouldnt bother with a guage for that motor.
#6
Platinum Member
Platinum Member
Thread Starter
Join Date: Oct 2003
Location: Townsville Australia
Posts: 778
Likes: 0
Received 0 Likes
on
0 Posts
Yeah but its a race boat.Aggressive height,Ron Hill cleaver.Flying along i don't think i'll see the telltale.Basically just need to know the pressure is allright at the height.
#8
Registered
Join Date: Oct 2006
Posts: 54
Likes: 0
Received 0 Likes
on
0 Posts
I thought or wrongly assumed tiller steer . Since it is fixed pin im sure you could ,graduly increase the speed and have a peek .I will go out on a limb and say you should run out of drive before water pressure on that motor.
Thread
Thread Starter
Forum
Replies
Last Post
Zanie
General Q & A
5
03-10-2005 10:58 AM
28Eliminator
General Q & A
11
06-22-2004 10:43 PM