- Jun 2, 2008
- 5,024
- Boat Info
- 1998 450 Sundancer, Achilles dinghy w/15hp
- Engines
- 3126 Cat's
I run 10 microns in my racors...
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Doing some HEX and cooling system work today. Having an overheating issue previously mentioned. HEX is clean, no impeller parts. Impeller is solid. Replaced the regulator, and there was no gasket left so put a new one on. Is there a coolant circulation pump? I cannot locate it in the exploded diagrams. We are trying to hunt down what could be causing this over heating.
Added, and see edited post for more details.You should add your complete boat info. in your profile below your avatar as this will let others know what you have should they be able to help.
It seems like the belt wraps around the, forgive my ignorance, large round area where my tachometer plugs in at the very front of the motor. Am I way off on that? There are two belts of course, and a cover that I did not take off yet, so maybe I didn't actually see the one belt. Planning to get back at it in the morning.The belt tensioner should have a square hole in it to accept the male end of a 1/2" extension. Loosen the jam nut in the tensioner, stich the end of a socket extension in the hole and turn it with a rachet and then you should be able to loosen it to remove the belt or adjust the tension as needed.
It seems like the belt wraps around the, forgive my ignorance, large round area where my tachometer plugs in at the very front of the motor. Am I way off on that? There are two belts of course, and a cover that I did not take off yet, so maybe I didn't actually see the one belt. Planning to get back at it in the morning.
Frank, what coolant do you recommend? I've gotten two different answers from Ring Power and Kelly tractor, and seems most fluids listed in the manuals are now something new.
I have a synchro, not sure which one. I'm really just trying to get this thing to allow me to go over 1550 rpm to start. I'm sure there is a lot I'll want to do to it while I'm in there, but really need to focus on the main issue for now. I'm highly ADHD and if I start adding more to it, I'll never get it done and will never know if it can get on plane. I'm not even 100% sure my turbos are working properly since I haven't been able to kick kick in.Do you have an Glendinning Engine Synchronizer? If so the "tachometer" is actually the mechanical drive to the synchronizer. You will have to remove and reinstall these. There is a tool that will center everything up when you put it back together
This tool is about $10. If your in that far might as well replace the flex shafts as well as the tend to wear.
The $10 tool.
View attachment 114652
I have a synchro, not sure which one. I'm really just trying to get this thing to allow me to go over 1550 rpm to start. I'm sure there is a lot I'll want to do to it while I'm in there, but really need to focus on the main issue for now. I'm highly ADHD and if I start adding more to it, I'll never get it done and will never know if it can get on plane. I'm not even 100% sure my turbos are working properly since I haven't been able to kick kick in.
Zincs????
So my first year with boat
I believe there are 11 zincs per engine. So the ones on the port engine do u have to squeeze between the engine and the fuel tank to gain access??
Thank you for the pointers
Would you have a diagram of what goes where on the engine?
If your have the synchronizer...it's got to come off to get the the belts. It's just a bracket bolted on, but you need to align it when reinstalling, or the connector will eat itself. Tool is a necessity, unfortunately. I'll loan you mine, but after shipping back and forth cheaper to just buy one.
1500 rpm is about were the turbos start to kick in so if you can get the belts sorted out (it's a PITA) I think you should be good.
The last three are on the aftercooler?
Do you have an Glendinning Engine Synchronizer? If so the "tachometer" is actually the mechanical drive to the synchronizer. You will have to remove and reinstall these. There is a tool that will center everything up when you put it back together
This tool is about $10. If your in that far might as well replace the flex shafts as well as the tend to wear.
The $10 tool.
View attachment 114652
Where did you source your tool? A general Google search does not proffer any suggestions.