westerbeke 16KW siphon for coolant

The friendliest place on the web for anyone who enjoys boating.
If you have answers, please help by responding to the unanswered posts.
See posts with no answers
Rogerh

Rogerh

Guru
Joined
Aug 27, 2013
Messages
724
Location
USA
Vessel Name
At Last
Vessel Make
1990 Jefferson 52 Marquessa
The siphon for my coolant at the radiator cap is not working and I assume plugged up. I have removed the hose and ran a wire through but did not seem to get a place for it to come out. I took some photos and saw the very small hole on one of the pictures in the cap inside lip. I ran a wire in it and got maybe 3/8 of an inch in. Should the coolant flow with the cap off through this hole if it is above the opening? Is there a way to clean the path and is this hole the hole I should be working with. Thanks
IMAG0814.jpg

IMAG0815.jpg

IMAG0818.jpg
 
Common problem. Unthread the brass elbow and try to clear out from that end.

I have used a wire about 1/16" inside a piece of 1/4" polyflow as a guide, with the wire chucked to a cordless drill. That way you can curve the thing a little to follow the factory hole. Beat a little flat on the tip of the wire and you have a paddle bit.
 
Thanks Ski, I will go out and try it.
 
Ski, the elbow was blocked solid. got everything cleared out of it. Looking into the flange I had alot of stuff which I cleaned out. But now I am down to a substance that looks like solid solder. Could the previous owner had this all solder shut? maybe to seal a leak at the flange. I have been trying to clean out to match the hole on the inside of the flange. Should this hole go straight through?
 
Some of the holes are drilled off center from the threaded hole. If using the wire trick, try going in from the pressure cap hole.
 
You may just have to drill a new hole. When the neck was installed or replace it sounds like they blocked the hole or forgot to drill one in the neck of the cap fitting.
 
You must log in or register to reply here.

Similar threads

S
JD 4045 External Coolant Loop
Replies
7
Views
2K
scurvydog_pnw
S
M
Challenge Refilling Coolant
Replies
23
Views
2K
Comodave
Comodave
jimL
Cat C9 Cooling - Expansion Tank Issue
Replies
8
Views
1K
Owen Christensen
Owen Christensen
P
replace a gfci outlet
3 4 5
Replies
130
Views
6K
RT Firefly
RT Firefly
SeaDogAK
Heat exchanger raw water connections
Replies
11
Views
838
Lepke
Lepke

Latest posts

Back
Top Bottom