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Topic: Overheating 1992 U240 with Cat 3208 (Read 2979 times) previous topic - next topic - Topic derived from 94 8.3 Cummins overhe...

Re: Overheating 1992 U240 with Cat 3208

Reply #60 –
Quote from: RevRick –
Hey Pierçe, what kind of àdditive àre you talking about for a head gasket leak?? Jus wonderin
Rick
Go to this Amazon page and make sure to read all the reviews. Your local parts store may have the same stuff. RV cooling systems hold a lot more so need more additive.

Amazon.com : head gasket sealer

Pierce

Re: Overheating 1992 U240 with Cat 3208

Reply #61 –
Quote from: Pierce & Gaylie Stewart –
Go to this Amazon page and make sure to read all the reviews. Your local parts store may have the same stuff. RV cooling systems hold a lot more so need more additive.

Amazon.com : head gasket sealer

Pierce

But, do not add a head gasket sealer unless you have verified that you do have a head gasket leak and that it is minor enough that the sealer is likely to fix it. 

Said another way, you really need to diagnose the root cause(s) of your overheating and fix them.

Re: Overheating 1992 U240 with Cat 3208

Reply #62 –
Quote from: wolfe10 –
But, do not add a head gasket sealer unless you have verified that you do have a head gasket leak and that it is minor enough that the sealer is likely to fix it. 

Said another way, you really need to diagnose the root cause(s) of your overheating and fix them.

Agree, many times a sealer has blocked heater cores and a percentage of the radiator.

Re: Overheating 1992 U240 with Cat 3208

Reply #63 –
Yes, you have to check for products of combustion in the coolant before thinking adding anything as stated in my first reply. But, that's easy to do. Most additives I've seen won't clog the radiator or heater core and designed for headgaskets not radiator leaks. They contain no solids of particulate matter. Watch the reviews on YouTube for all the sealers available.

Testing the coolant for products of combustion and getting a positive result does identify the root cause of overheating..

Also, check your oil dipstick for signs of coolant in the oil. The oil will usually have a gray color to it.

https://www.youtube.com/results?search_query=head+gasket+sealer

Pierce

Re: Overheating 1992 U240 with Cat 3208

Reply #64 –
Well lo and behold my BIG air filter arrived today, so will put that in today or Sunday afternoon. Would like to make a 150 mile run up to the VA in Prescott Tuesday. Thermostat on back order, should get it next week for sure.

When I check the oil I will look carefully to see if has any water in it. There sure are a lot of diff kinds of head gasket sealer. I will read the reviews, but I would trust any info from someone on this forum a lot better than any reviews on Amazon.

Y'all have a safe and blessed weekend

Rick

Re: Overheating 1992 U240 with Cat 3208

Reply #65 –
 You can also check for combustion pressure/ leak into coolant, by topping the coolant with the cap off to the rim and watch for bubbles.  Bubbles bad .

Re: Overheating 1992 U240 with Cat 3208

Reply #66 –
Quote from: wolfe10 –
A clogged air filter would certainly cause low HP.

Consider it good Preventive Maintenance.

STRONGLY suggest you review what exactly the dealer replaced/serviced.  Post it line for line and we can give you what else needs t3o be done.

CERTAINLY, with the TORSILASTIC SUSPENSION, you need to check RIDE HEIGHT. It is adjustable (raised by removing the 1/4" thick shims). This can be critical for suspension and driveline wear.

You know Brett I would love for the coach to ride higher, is there a way for me to adjust it?

Re: Overheating 1992 U240 with Cat 3208

Reply #67 –
Quote from: Protech Racing –
You can also check for combustion pressure/ leak into coolant, by topping the coolant with the cap off to the rim and watch for bubbles.  Bubbles bad .

That's a good idea Mike, thanks for the suggestion.

Rick

Re: Overheating 1992 U240 with Cat 3208

Reply #68 –
Quote from: RevRick –
You know Brett I would love for the coach to ride higher, is there a way for me to adjust it?

Of course (if you have ride height shims left).

Park on level pavement, jacks up/stowed.

There is a horizontal area behind each wheel position that forms the top of the wheel well.  Measure from there to the ground.  Record the readings at each wheel position.  It will be the only area that measures somewhere between 30 and 33". Tell us.

Then at the front and back of each wheel positions are the long bolts that hold the torsilastic shackles.  Count the number of those 1/4" thick shims at each wheel position (should be the same number in front of and behind each wheel position). Tell us.

Then we can go from there.

I have done the adjustment many, many times with hand tools only.

But, please post your results in A NEW TOPIC so we can keep it separate from this overheating discussion.

Re: Overheating 1992 U240 with Cat 3208

Reply #69 –
Ok, installed the new air filter, checked  the oil. Oil looks really good and clean, radiator is up into the neck with clean and a green cooler. There is a surge bottle and it is empty, will fill it with antifreeze  :tomorrow and take for a ride into Quartzite to check the temperature!

This item is mounted to the side of radiator, does anyone know what it?

Rick

Re: Overheating 1992 U240 with Cat 3208

Reply #71 –
Here it is, finally loaded

Re: Overheating 1992 U240 with Cat 3208

Reply #72 –
Hydraulic reservoir.

Should have a sticker on it saying what fluid.  Likely (please verify) Delo 400 15-40.

Again, strongly suggest you have someone knowledgeable go through your coach with you.  Could save some very expensive repairs.

Re: Overheating 1992 U240 with Cat 3208

Reply #73 –
"Again, strongly suggest you have someone knowledgeable go through your coach with you.  Could save some very expensive repairs.
More...1 Likes"

Thanks once again Brett, I'm not sure what the hydraulic fluid is for.

I live where it is 130 miles to Yuma, 142 miles to PHX, and 114 to Lake Havasu, so I have no one to walk through my coach with me. I apologize for so many questions. I'm just gonna park this coach down by the horse stalls, and then This Winter I will go down to the Foretravel incampment South of Quartzsite and find out more.

Thanks Brett and everyone else that were so thoughtful to help this OLD DUMB Cowboy, I really appreciate your suggestions and input.

God Bless Y'all
Rick

Re: Overheating 1992 U240 with Cat 3208

Reply #74 –
The hydraulic reservoir is likely for your power steering.

Someone with first hand experience with the Caterpillar 3208 could direct you to the pump and you could follow the line from reservoir to pump then forward from the pump.

Re: Overheating 1992 U240 with Cat 3208

Reply #75 –
Steering only on n mine.

Re: Overheating 1992 U240 with Cat 3208

Reply #76 –
Mike, do you have that same kind of can attachment on the side of your radiator?

Rick

Re: Overheating 1992 U240 with Cat 3208

Reply #77 –
Ric,if you can hold out till Jan you will have bookoo Foretravlers to look at your coach,many of us will be at desert palms in Salome
I will be happy to come and help.

Re: Overheating 1992 U240 with Cat 3208

Reply #79 –
Thanks Mike. Standing at the back of my coach looking at the radiator there are three dip sticks, 2 on the left and one on the right. Can someone please tell me what each one is for?

Rick