caterpillar heat exchanger?

[wmfels]

ok heres the deal, this was my fathers hatt and he died,so im always on here searching for answers. first of all im trying to figure out if this has 3160 cats? like the spec sheets say or 3208 like my mom says whats the difference? how do i tell? theyre v8 thats all i know..now heres my big problem i was changing out hoses, the big 1 1/4 inch coming from the sea pump and going to this large approx 3" tube running across the motor. is this the heat exchanger? anyway the hose was stuck on the fitting so i grabbed a pair of channellocks to twist, and YEP!! snapped the f#@%$ thing off.. it looks like i can just unbolt the cap off the side and get a new endcap? i am going to be driving it to key largo from cudjoe key and would like to get it replaced..the good news i think is theres a little bit of nipple left, and it broke at an angle, so i think it will be ok for my journey.plus i used exhaust hose and it was so dang hard to get on there i m pretty sure it wont blow off. any input is greatly appreciated

[ThirdHatt]

Never heard of a 3160 Cat, but 3208 Cats were very common back then. I'd bet on those. The "08" means 8 cylinders and the "32" is the series. Newer versions are Cat 3406, 3400 series 6-cyliner, 3412 is 3400 series 12 cylinder. There are 3116 and 3126 Cats first and second generation of the 3100 series 6-cylinder, but those are engines that were popular in 1990's boats and beyond. Those are 6-cylinders anyway and you said you have V8's, so I would be willing to bet those are some variant of 3208s.

Not sure what hose you are referring to, but if you posted a few pictures that would help alot. Cat engines are easy to get parts for as Cat dealers are everywhere. They are proud of their parts, but these days who isn;t.

GOOD LUCK!

[SeaEric]

The 3160 is the forerunner of the 3208. Many of the older Hatts, typically Series I 36C's, had 3160's.

[ThirdHatt]

The 3160 is the forerunner of the 3208. Many of the older Hatts, typically Series I 36C's, had 3160's.

REALLY? Wow, you learn something new every day. My old series I 36C had Detroit Diesel 4-53T's. I had no idea the Cats were even an option, I thought the Detroits were the only diesel option. Is the 3160 a V8? I assume if so it would be naturally aspirated, but with no "8" in the nomenclature I would be surprised if it were not a 6 cylinder.

[SeaEric]

Its a V8. At first glance, looks almost identical to a 3208. They are 210 HP and naturally aspirated. Here's a pic of a 3160- Note the air cleaner and expansion tank.

[wmfels]

yep theyre 3160s found the metal tag lying underneath injector lines..ok good to know. now my next question is what should my normal operating water temps be?

[jim rosenthal]

That depends on what thermostats were installed. Your normal operating temps should be in the 175-180 range for those engines. If you want a contact point for a reliable Caterpillar dealer, for parts and advice, call T&S Marine Engines in Crisfield MD and ask for Steve. He is the 3160/3208 guy. They are reasonable on parts, and great on service; he has overhauled literally hundreds of those V8 Caterpillars. IMHO, the best engine they ever built.

[DeeRow]

I buy my 3208 parts from Kelly Tractor in West Palm Beach. They are closer to Key Largo than Crisfield, MD. I use a mechanic that recommended Kelly over Pantropic. If you call Kelly, the switch board operator will ask "what kind of parts do you want?" The answer is 3160 parts. DO NOT mention it is for a boat or they will transfer your call to Pantropic. I tried Pantropic once! I won't go back. PM me if you want the details.

Mark

[wmfels]

well, the hose is holding on the bonnet but i took it out and got on em hard for a couple minutes and the right engine boiled over, the water is rusty too what are some possible issues? when its running i can see the water circulating in there, its been sitting for a looong time. also how do i drain it to flush out and add coolant? if i run at cruise speed its ok

[wmfels]

sorry "in there" meaning the coolant reservoir