I raced Sat and flipped in the mud just into the 4th lap of a 6 mile course. I'm not sure when my return hose broke on the bottom right of the radiator. When I was able to get myself out from underneath the machine, I flipped it back over and started it up. I drove over to the side of the trail. When I got home today, I pulled the hose all the way off. I then poured the remainder of what was in the hose into my hand. As I suspected, there was sand and dirt in there. So, I think it is in the engine and radiator, too. I only ran it for about a minute after getting it running. What should I do now? If the dirt and sand is in the engine now, how do I get it ALL out?
I will also be changing the oil again. I finally got the stainless oil filter.
So did I really mess up by running the quad after the line broke and mud got in the hose?

 

You need to do a good flush - removed both radiator hoses, hook the garden hose up to the top of the radiator and flush it out real good for a while. remove the thermostat cover and pull out the thermostat, remove the water pump cover, stick the garden hose in where the thermostat goes and flush the motor out from top to bottom for a while.

put the thermostat in a pan of water and heat on the stove, to get it to open so you can make sure you flush any grit that it may have closed on out of it.
make sure the radiator cap and expansion tank are clean.

Depending on how long you ran with the grit in it, the water pump seals may or may not have been damaged. after you finish flushing hard core, may sure you drain all the tap water out and put it all back together with distilled water/antifreeze. If you discover your water pump seals are leaking water into your oil later on, be sure to replace them both along with the shaft as well. $20 total from dealer.

I raced in the GNCC Ironman Classic saturday, it was a mega monster mud fest as well. Worst slop I've ever seen. 9 mile course, 3 laps in a 2 hour time frame, I overslid a corner and hooked a tree towards the end of my 2nd lap and bent a tie rod like a boomarang, snapped the tie rod end like a twig, sent me flying off for a face dive in the muck.

 

Glad to hear you are okay. Those trees come up FAST! What were you using for tie-rods? Is that all that bent? After I cleaned mine really good, I fould more bent areas.
Someone at my race showed video that he shot of me crashing. He happened to be at the one part of the course that I wiped out on. I will get it and post it. It is quite something. He was filming another rider that was stuck. I came into the frame for a second in the background. I seem to be going fine and WHAM!! I flip over. Smoke begins to pour out and I am pinned under the 500lb machine. My face/helmet was half buried in the mud. I could breath but could only see out of a small part of my helmet. After squirming a little in the mud, I was able to get out from under it. THANK GOD for the deep,soft mud. As I was trying to right my machine, I burned my arm on the endcap. That is the only injury to me. I am lucky. You can't tell who is who in the video. Heck you couldn't in real life. It was MUDDY! Everyone is black.
I just held it down. That is the only way to get through. Start out fast and hold it down! Everytime I got to a mud area, I didn't even think about getting stuck. I was more worried about getting sideways and hooking up while haulining a$$.

Hightower, I really appreciate the procedure for flushing. That is exactly what I needed to know. I read my shop manual 50 times last night and this morning. I only ran it for approx. 1 minute after. I had to get it off the course. I had someone tow me back to my pit for fear of further damage.
The other lucky thing was that I didn't finish last! There were a few that crashed before me. There were a few that just plain quit for whatever reasons.
Now I have 61 points for this new season.
Also now, I have more to fix on my DS.
Should I be going with stock replacement hoses?

 

Wow glad you're okay too man, I've been under my DS a few times, it aint fun!
I did a full detail clean/inspection yesterday, nothing else bent in the front. I was using stock tie rod and ends, I actually hooked a tree twice, the first time bent the rod, the secodn time broke the end. I hit so hard man, I can't believe my a-arms are okay.
I wasn't last either, many many people were out well before, I can't believe all the quads that littered the sidelines as I came around on my 2nd lap.

Good luck on the flushing!