Official Caterpillar3116/3126 Thread

anyone know roughly how much coolant needs to be drained to swap the thermostats? I recently did a coolant swap so it doesn't need a flush, I'll capture and refill after the T-stat. I'm guessing 2-3 gallons should do it since its just the expansion tank and a couple hoses
 
Strecker25 said:
anyone know roughly how much coolant needs to be drained to swap the thermostats? I recently did a coolant swap so it doesn't need a flush, I'll capture and refill after the T-stat. I'm guessing 2-3 gallons should do it since its just the expansion tank and a couple hoses
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Problem is how to start then stop the coolant. The J pipe is not easily accessed and stuffing the plug back in make a big mess. This is what keeps me from switching back to the 185* T-stats.

But I think 3 gallons a side would cover you.
 
dtfeld said:
Problem is how to start then stop the coolant. The J pipe is not easily accessed and stuffing the plug back in make a big mess. This is what keeps me from switching back to the 185* T-stats.

But I think 3 gallons a side would cover you.
Click to expand...

True. I drill pumped some out a while back from the top of the expansion tank, then drained that bypass hose. Might be more work that it’s worth, I want to put drain valves in anyway, so maybe I’ll drain the whole system and do them now
 
Strecker25 said:
True. I drill pumped some out a while back from the top of the expansion tank, then drained that bypass hose. Might be more work that it’s worth, I want to put drain valves in anyway, so maybe I’ll drain the whole system and do them now
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Drain plug. Thinking I'll go the same route since I'm due to drain my coolant. Any idea what thread/fitting size the plug is? 3/4-16 straight thread I think, but not sure
 
I upgraded to a valve when servicing the cooling system.

As I recall, that "plug" has an O ring seal.

Also, I chose a valve that was threaded so I could still put a plug in it for double the security :)

YUP - I am anal about the boat.

BEST !

RWS
 
Chris L said:
Drain plug. Thinking I'll go the same route since I'm due to drain my coolant. Any idea what thread/fitting size the plug is? 3/4-16 straight thread I think, but not sure
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Same here. @ Maybe a Dancer. Can you confirm the thread and valve you used? Maybe a reducer to an EZ Oil valve.
 
Can't confirm thread.

Took fitting to local hydraulic shop and they set it all up.

NAPA unable to do anything with it.

Will look for photos to post.

BEST !

RWS
 
Here's a shot of the coolant drain with valve & plug

BEST !

RWS

IMG_3572[1].JPG
 
How many gallons of antifreeze are you guys running thru your raw water cooling side to winterize? I use 7 gal per engine. Also drain raw water out of trans cooler and vacuum out the strainer before adding the AF.
 
Njlarry said:
How many gallons of antifreeze are you guys running thru your raw water cooling side to winterize? I use 7 gal per engine. Also drain raw water out of trans cooler and vacuum out the strainer before adding the AF.
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7 as well. I test with a refractometer and after 7 gallons it’s 100% antifreeze coming out
 
Many thanks to @Strecker25. A few years ago, he posted his experience with installing Isspro EGT and boost gauges, complete with part numbers. I copied and pasted into my “to do” file. Finally pulled the trigger and ordered the parts about 15 days ago. A few of the part numbers changed, but Lucy Wade at Isspro cross referenced. Received everything today.
 
Sgrochow said:
Many thanks to @Strecker25. A few years ago, he posted his experience with installing Isspro EGT and boost gauges, complete with part numbers. I copied and pasted into my “to do” file. Finally pulled the trigger and ordered the parts about 15 days ago. A few of the part numbers changed, but Lucy Wade at Isspro cross referenced. Received everything today.
Click to expand...

Their customer service is amazing. Turbocator!!
 
Strecker25 said:
Their customer service is amazing. Turbocator!!
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Yeah! she replied in 2 hours.

Steve,

I have pasted the links to the part numbers you are looking for!

R660-25PL https://isspro.com/aftermarket/r660-25pl.html

R7110-25 https://isspro.com/aftermarket/r7110-25.html



Just a heads up, we will have to build: R609, R660-25PL, R7110-25, the lead time is 7-10 business days.

If you have any questions or concerns, please call me at 503-528-3425 (my direct line)



Thank you,

Lucy Wade
 
Sgrochow said:
Yeah! she replied in 2 hours.

Steve,

I have pasted the links to the part numbers you are looking for!

R660-25PL https://isspro.com/aftermarket/r660-25pl.html

R7110-25 https://isspro.com/aftermarket/r7110-25.html



Just a heads up, we will have to build: R609, R660-25PL, R7110-25, the lead time is 7-10 business days.

If you have any questions or concerns, please call me at 503-528-3425 (my direct line)



Thank you,

Lucy Wade
Click to expand...
Awesome. Post up pics of the install and your results next year.
 
Winterizing question for a 3116 engine not in the boat.
Got the starboard 3116 back from T&S Marine. Given how the boat is now buried amongst other boats for the winter, won't be installing the engine until March.
So, wondering what/how to winterize the engine as it's in an unheated garage.
Reached out to T&S but thought I'd ask here as well.


IMG_1178.jpeg
 
SCFoster said:
Winterizing question for a 3116 engine not in the boat.
Got the starboard 3116 back from T&S Marine. Given how the boat is now buried amongst other boats for the winter, won't be installing the engine until March.
So, wondering what/how to winterize the engine as it's in an unheated garage.
Reached out to T&S but thought I'd ask here as well.


View attachment 153746
Click to expand...
I’d do the same as on the hard for us - stick the hose in a big bucket of AF and run it for about 30 seconds. That’s assuming you’re able to start it?
 
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