Medium and Heavy Trucks

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We have a 6nz c15 caterpillar in the shop we rebuilt it
We have a 6nz c15 caterpillar in the shop we rebuilt it because it gaulded a piston. But when we had it apart we found the front cam bearing spun. We cleaned cam etc and put a new head in it. We start… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
My shop has rebuilt two different C15 engines in the last
My shop has rebuilt two different C15 engines in the last couple months. One we rebuilt with aftermarket parts including a new aftermarket head. The second was rebuilt with a platinum kit and reman CA… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
CATMAN does the 6TS Engine 3406. does it come with that oil
CATMAN does the 6TS Engine 3406. does it come with that oil seal on the left rear of the engine. between head and block? the one that goes through the spacer plate.? looks like a weird shape rectangle… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
CATMAN c15 6NZ73202. i replaced 6 injectors because it was
CATMAN c15 6NZ73202. i replaced 6 injectors because it was blowing a little blue smoke in the mornings ONLY. replaced injectors. truck started missing. didnt do it before... uncovered it all and yanke… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
Cat 6nz had block redone deck been machined new cat liners
cat 6nz had block redone deck been machined new cat liners new cat deck plate but all 6 liners below deck plate block cut and new sleeves put in top for seal ring then machined my only thoughts is lin… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Catman I have a 6nz and I am measuring liner protrusion. I
catman I have a 6nz and I am measuring liner protrusion. I don't have a new riser plate yet so I am measuring from the cylinder to the deck. What is the thickness of the foil that goes under the riser… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
Catman I have a couple motors we have done inframes on or
catman I have a couple motors we have done inframes on or upper ends and we seem to blow head gaskets within a year or less. We measure liner protrusion. The one is a 6nz and it is was turned up a bit… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
Catman I have a 6nz cat and it seems to be pushing coolant.
catman I have a 6nz cat and it seems to be pushing coolant. I just pressure tested it and it reached 19psi. It took a while to get there so I am assuming the air compressor is not the culprit. we have… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
Catman we have had a few of these heads where they are leaking
catman we have had a few of these heads where they are leaking oil from the head. the most recent one the epoxy hasn't worked. We are going to replace the head gasket. I was curious if we could put so… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
Catman I hae a 6nz that we have rebuilt. The block was decked
catman I hae a 6nz that we have rebuilt. The block was decked and we did have trouble with t blowing head gaskets in past, we had a accert crank in it along with those pistons and so on. We changed it… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
Sir i was gng to rebuild this c15 was reading a manual
hello sir i was gng to rebuild this c15 was reading a manual what refer to term liner projection???… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
hey cat man i pulled a head off 3204 the block deck has
hey cat man i pulled a head off 3204 the block deck has pitting and deteiration around the water passages and the height diff between the unpitted and pitted are from 10 tho to 15 tho your thoughts… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
I have a 2002 6NZ 550 CAT put new head on it 2 months ago newer oil co
I have a 2002 6NZ 550 CAT put new head on it 2 months ago newer oil cooler and air compressor. I have run it 30000 miles last week it started puffing steam out of dipstick. No antifreeze in oil. I als… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
catman I have a 6nz that was making some mechanical noises.
catman I have a 6nz that was making some mechanical noises. We pulled the valve covers and cyl Number 2 exhaust rocker was broken. I replaced that and gapped it. Now when it run it there is a ton of b… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
I want to put a 6nz engine in a 1981 Peterbilt that has an
I want to put a 6nz engine in a 1981 Peterbilt that has an A model cat engine in it Would you happen to know how much difference there is in the mounting brackets… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
catman when guys take a newer accert motor c15 and change the
catman when guys take a newer accert motor c15 and change the ecm back to a 70 pin pre accert and change the turbo and all that. The ivas don't hold the intakes open and the compression is increased t… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
Cat c15 6nz rebuild kit: Keeps blowing fire rings around exhuast valve
Catman I have a 6nz that I put a bxs crank and a rebuild kit for it, a bxs in. It has been running good but the head gasket won't stay in it. I keep blowing or burning the fire rings around the exhaus… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
I have a 6NZ and blowing blue smoke, we have changed the #4
I have a 6NZ and blowing blue smoke, we have changed the #4 injector, we did change this injector because of performing a cut out test on each cylinder. After replacing the injector setting the valves… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,044 satisfied customers
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