What to do about a Cummins Big Cam IV over heating?
What to do about a Cummins Big Cam IV over heating?
Anybody good on Cummins Big Cam iv low flo overheating problems? This is what has been done so far This is a Cummins BC 4 400 lo flow Recon engine with about 30,000 miles so far we have replace radiator with a 4 row dimpled tube core, water pump , both themostats and the POS is still getting hot any help will be appreciated .Tony
Why did Cummins change to a big cam engine?
Cummins aimed to meet new US government legislation at that time regarding noise levels and clean air requirements. This engine replaced the Small Cam 855 series engines and it features a greater camshaft diameter and the introduction of top-stop injectors.
Is the big cam 4 a good engine?
The Big Cam 4 and NT88 are both mechanical and are good engines esp if you don’t try and get much more then 400 hp… The Big Cam 4 has the screwy low-flow cooling system, and while it does work, it doesn’t handle high hp very well.
What causes a big cam 4 to over heat?
The aftercooler, radiator, water pump, etc all enter into the problem. Early Big Cam 4’s had the thermostat houseing that bolted on from the top, later NT88’s from the side. If you have a later NT88 you can pull the thermostats and check in boiling water.
Cummins aimed to meet new US government legislation at that time regarding noise levels and clean air requirements. This engine replaced the Small Cam 855 series engines and it features a greater camshaft diameter and the introduction of top-stop injectors.
Why did Cummins stop using the ” a “?
They stopped useing the “A”, as most of their turbo engines from the 70’s on were aftercooled. Cummins truck block went thru many changes. It had small bores then was bored out to 855 CID… They were haveing trouble with cam lobes wearing, and incressed the size of the cam allowing for longer “ramp” times on the lobes .
The Big Cam 4 and NT88 are both mechanical and are good engines esp if you don’t try and get much more then 400 hp… The Big Cam 4 has the screwy low-flow cooling system, and while it does work, it doesn’t handle high hp very well.
How many CPL’s does a Cummins Big Cam have?
Known Big Cam III CPL numbers 530 531 553 554 558 578 579 581 585 586 588 606 611 612 614 615 616 617 625 632 634 635 650 653 654 657 677 702 743 744 757 789 891 988 989 1310 1411 Cummins Big Cam IV
Anybody good on Cummins Big Cam iv low flo overheating problems? This is what has been done so far This is a Cummins BC 4 400 lo flow Recon engine with about 30,000 miles so far we have replace radiator with a 4 row dimpled tube core, water pump , both themostats and the POS is still getting hot any help will be appreciated .Tony
Can a big cam 4 be converted to high flow cooling?
The old Big cam 4 (with the thermostat that bolts on from the top) can be converted to “Big Cam III” high flow cooling. It not so easy with the NT88. They changed the block casting around the waterpump. There were some industrial NT88 blocks with high flow cooling, but finding the parts isn’t easy.
Where are the thermostats on a big cam 4?
Early Big Cam 4’s had the thermostat houseing that bolted on from the top, later NT88’s from the side. If you have a later NT88 you can pull the thermostats and check in boiling water. Just make sure the O rings and seals are on when you re- install. The earlyer B/C IV’s have the thermostats that really can not be easly checked outside the engine.
What should I do about my Cummins BC 4 400 flow recon engine?
This is what has been done so far This is a Cummins BC 4 400 lo flow Recon engine with about 30,000 miles so far we have replace radiator with a 4 row dimpled tube core, water pump , both themostats and the POS is still getting hot any help will be appreciated .Tony :sick::angry::crazy:
Early Big Cam 4’s had the thermostat houseing that bolted on from the top, later NT88’s from the side. If you have a later NT88 you can pull the thermostats and check in boiling water. Just make sure the O rings and seals are on when you re- install. The earlyer B/C IV’s have the thermostats that really can not be easly checked outside the engine.
How many horsepower does a big cam 400 Cummins have?
Just like Burky and Packrat have mentioned, Diesel Injection of Pgh can build some real monsters. And 550W9, I’m sure your Kitty ain’t stock, but they have built some 700+ hp BCs; one was up around 900 hp (If my memory serves).
This is what has been done so far This is a Cummins BC 4 400 lo flow Recon engine with about 30,000 miles so far we have replace radiator with a 4 row dimpled tube core, water pump , both themostats and the POS is still getting hot any help will be appreciated .Tony :sick::angry::crazy:
When to replace the thermostat on a Cummins ISX engine?
This thermostat replacement will be very similar to all CUMMINS ISX engines from 2000 to the newest version Cummins ISX engines. The difficult of the job will vary depending on the year, make, model and application of the vehicle. Always use coolant to prevent any damage to the engine.
What should I do if my water pump is overheating?
Was raising out of nowhere, so I parked and turned it off, let it cool of 10 mins and turned it back on but it was still hot but the coolant was cooling the engine to normal temp. Then it was fine, it keeps doing that randomly so I replaced the thermostat and the coolant temp.
What happens when you replace your water pump?
Overheating after replacing water pump, thermostat and co… Q: Overheating after replacing water pump, thermostat and coolant temp. Sensor I was driving my truck one day and noticed that the temp gauge was raising as I got home, I turned the engine off and check the engine and noticed that the water pump was leaking, it had a hole on it, how?
