Reply
 
Thread Tools Search this Thread
 
Old 04 September 2004, 01:22   #1
Member
 
Country: UK - Scotland
Length: 10m +
Engine: 2x610hp jets
Join Date: Apr 2004
Posts: 74
yamaha 240 hp

looking for the running temp of the 240 hp diesel ,seems to sit quite high when under load .about 90 degrees/
__________________

__________________
tonka is offline   Reply With Quote
Old 04 September 2004, 03:26   #2
Member
 
Country: UK - England
Town: Hemel Hempstead
Make: Scorpion
Length: 8.1
Engine: inbord diesel 300hp
Join Date: Oct 2002
Posts: 25
90 to 94c is about right for diesel engines. If it is running cool when not under load, check the thermostat
__________________

__________________
Sharky is offline   Reply With Quote
Old 04 September 2004, 08:24   #3
Member
 
Country: UK - Scotland
Length: 10m +
Engine: 2x610hp jets
Join Date: Apr 2004
Posts: 74
thanks for the answer sharky, thought it was a little bit hot at 90 but feel better now cheers.
__________________
tonka is offline   Reply With Quote
Old 04 September 2004, 13:54   #4
JIY
Member
 
Country: UK - Scotland
Town: Largs
Boat name: Spitfire
Make: XS850
Length: 8m +
Engine: 2 x 200 Verado
MMSI: 235905304
Join Date: May 2004
Posts: 174
I run a YANMAR 250hp on my Tornado - once it warms up the guage always reads amost exactly 90 degrees.
__________________
JIY is offline   Reply With Quote
Old 09 September 2004, 00:55   #5
Member
 
Country: UK - Scotland
Length: 10m +
Engine: 2x610hp jets
Join Date: Apr 2004
Posts: 74
thanks for the answer jiy some people have been telling me that the yamaha 240 hp should run at between 80 to 85 degrees this one sits on 90 so i thought i might have a cooling problem,
__________________
tonka is offline   Reply With Quote
Old 09 September 2004, 04:16   #6
Member
 
Country: UK - England
Town: Saltash, Cornwall
Make: Rib less:-(
Length: no boat
Join Date: Sep 2002
Posts: 693
Tonka
I have the 165 Yam and when running it sits about or just below the 90 degree mark.
If you find that it suddenly overheats when you up the revs to over 3/4 throttle (as we did) check the hose that connects the raw water from the leg to the transom sheild, it had come off on ours and we only found it when it was pulled out of the water. (mercrusier pipe clips fit the hose and hold better so the engineer told us).
I've got the workshop manuals for the leg and the 165 if thats of help drop me a pm.
Jelly
__________________
Jelly is offline   Reply With Quote
Old 09 September 2004, 15:54   #7
Member
 
Country: UK - Scotland
Length: 10m +
Engine: 2x610hp jets
Join Date: Apr 2004
Posts: 74
thanks jelly will let you know once i have a look at the drives.
__________________
tonka is offline   Reply With Quote
Old 12 September 2005, 06:06   #8
Member
 
Country: Other
Town: Bizerte
Boat name: gourck
Make: GulfCraft
Length: 10m +
Engine: diesel i/o
Join Date: Mar 2005
Posts: 15
for information

my 421 stip run at 80-90 degrees celcius even with 30 degrees seawater.
Seawater impeller should be inspected before boating season and changed every 2-4 years. Engine temperature rising abnormally when throttle is 3/4 to 4/4 is often caused by loose belt (raw water pump) or clogged mixing elbow. I had this problem yesterday and cleaned the elbow water passages (4) with a rod after soaking in oxalic acid.
__________________

__________________
hamadi is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 15:14.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.