Boats For Sale:
crazy temperature swings |
Post Reply 
|
| Author | |
BaccoBouncer 
Senior Member 
Joined: April-25-2016 Location: Essex MA Status: Offline Points: 285 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: crazy temperature swingsPosted: June-12-2021 at 6:24pm |
|
I just put in a new thermostat and raw water impeller. It is the correct thermostat from discount inboard marine (I think a 140F). We were just out and cruising slow, just off idle. The temp ran up to over 200F and then when I started moving faster it went down to 120F.
Yes I put the key into the impeller shaft. It's a half moon key and I'm pretty sure if it came out when I inserted the impeller I wouldn't be able to put the cover on. Where to start? |
|
|
'97 21' Sport Nautique
|
|
 |
|
|
BaccoBouncer
Senior Member
Joined: April-25-2016 Location: Essex MA Status: Offline Points: 285 |
Post Options
Thanks(0)
Quote Reply
Posted: June-12-2021 at 6:25pm |
|
Could I have air in the block? Is there somewhere to bleed the block?
|
|
|
'97 21' Sport Nautique
|
|
|
|
|
Gary S
Grand Poobah 
Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
Post Options
Thanks(0)
Quote Reply
Posted: June-12-2021 at 6:47pm |
|
140 for carbed engines, 160 for fuel injected. You most likely have an air leak somewhere on the intake side of the pump. Check all the hose connections,use a socket to tighten clamps and check the strainer and it's gasket
|
|
|
|
|
Post Reply
|
|
Tweet
|
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options