Track-Master excessive oil temp

[utahwilson]

I'm headed up to fix my oil heating problem on the Track-Master. I have the external oil cooler/fan, new oil pressure/temp sensors, gauges, circular hole saw for venting. I will take some pictures.

I do have on question that is bugging me though. Since cooler air is more dense then hot, would it not make sense to suck fresh cold air into the carb instead of heated air from the engine compartment? Especially at higher altitude where you want all the oxygen you can get. If this has already been discussed I apologize and probably missed the thread. Seems that todays trucks have a plenum and suck in cold air. I was thinking of putting on a weber carb which would require hood modification and thought I would get some input. Thanks in advance.

Oh, karma gods are smiling. Searched online for a VW parts dealer in Salt Lake. Found one, "Bobs VW Parts". Better yet, only 2 miles from my house. Stopped by Friday and Bob has everything. I seriously think you could build a VW Bug from pulling used parts off the numerous racks. I took my wife to keep me in check from buying out the store.

 

[mtmogs]

I don't think the cooler carb air will make any difference. If anything, it may cause problems. Vaporization of gasoline is an exothermic reaction so the bottom half of your carb along with the intake manifolds will be cooler. In fact, if you don't have the heat risers installed then your carb may actually ice up! Cold intake air will only increase the likelihood of icing up, and, IMHO won't make much of a difference at all with your oil temps.

Remember, the original cooling fan inside the shroud in the Type 1 engine pumped a few 1000 cfm, probably nearly 1000 cfm or so going past the oil cooler. From what I have seen from your setup, all you have is a small electric fan on a remote cooler inside the cabin, and the other external cooler has no fan at all. Go ahead and get some cool air blown on your oil cooler and see what happens. Also, make sure enough oil volume is circulating through your cooler to have some real heat exchange. You do this by making sure the cooler is in a "full flow" circuit downstream of the oil pump.

Have Fun!

 

[utahwilson]

Seriously everyone thanks for the advice. I had an enjoyable trip up to work on the track-master yesterday. I was about half-way and realized I failed to bring my snowboots. Minor inconvenience, Again, another beautiful day in Northern Utah ahead of another snow storm. The pre-engineered bracket I made for holding the cooler on the front was off and I did not have the tools to Mcgyver it. However, I did add a pressure guage and fixed the idiot light. I thought the holes were supposed to go below the areas where the exhaust is closet to the skidplate. For that to happen it would have required me to remove the exhaust as the hold drill I had would have dilled into the exhaust with the center bit. I figured I would wait and check the article again to confirm.

I noticed on the left front gear that attaches to the chain there is a very nice, old weld. Wondered if one of Lyndons welding buddies fixed this in the past. I sent and email to the person who I bought this from to see if I can track down the person who he bought it from...etc and maybe get some history on this cat.

Cat has a weber carburator so I bought online a air intake meter and tuning book.

Also, burned the heck out of my hand on the exhaust pipe that runs along the right fender. I'm sure this is a common practice umong cat owners.

Anyway as a hobbicat enthusiast it is fun to be up in the mountains tinkering on the cat. Had several snowmobiles stop by the property and chat about the track-master.