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Topic: Good Video for those with the 8.3 Cummins under the bed (Read 535 times) previous topic - next topic

Good Video for those with the 8.3 Cummins under the bed

https://youtu.be/PUUxXfaZ0rY
Doug W.
96 36' U270 CSGI #4946
04 Toyota Tacoma 4x4
PNW

Re: Good Video for those with the 8.3 Cummins under the bed

Reply #1 –
Excellent video! Nothing wrong with a heavy engine. No, you would not want to install in a PU as it's too long and too heavy. A 3208 CAT or aluminum block 6V-53 Detroit are the ticket for PUs.

Good points about the CAPS pumps. I expect they give more problems in a motorhome as many owners will not maintain their filters and get water in the pump. Also, the rear engine on a coach will see more heat that a front engine OTR vehicle. I don't like the difficulty in diagnosing problems either. The shop better know what it's doing.

Pretty easy to make your own wet sleeve puller at home. Very nice tool though.

As he says, the P pumps are indestructible and almost never have problems. Easy to change torque curve, power, etc plus they tolerate water not that it's a good thing. Just a great pump. That's why they make kits to change CUPS to P pumps.

He quotes a $5K bill for the repair. Extra $5K for RVers who the shops have over the barrel.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)

Re: Good Video for those with the 8.3 Cummins under the bed

Reply #2 –
Quote from: Pierce & Gaylie Stewart –
Excellent video! Nothing wrong with a heavy engine. No, you would not want to install in a PU as it's too long and too heavy. A 3208 CAT or aluminum block 6V-53 Detroit are the ticket for PUs.

Good points about the CAPS pumps. I expect they give more problems in a motor home as many owners will not maintain their filters and get water in the pump. Also, the rear engine on a coach will see more heat that a front engine OTR vehicle. I don't like the difficulty in diagnosing problems either. The shop better know what it's doing.

As he says, the P pumps are indestructible and almost never have problems. Easy to change torque curve, power, etc plus they tolerate water not that it's a good thing. Just a great pump. That's why they make kits to change CUPS to P pumps. One of the reason I purchased this motor home was because of the 8.3 Cummings I thought they were bulletproof and no DEF

He quotes a $5K bill for the repair. Extra $5K for RVers who the shops have over the barrel.

Pierce

If you change the cups to p pump how's it done my cup  pump is electronic and the P pumps are they not mechanical is that address in the kit you mentioned I read that it was about a $2000 job would it pay to change it over or what kind of a filter kit or water separator may be add into the line to protecting it
Rick & Hilda looking forward to full- timing one day for now couple of months at a time
1999 U270 3602
Built number  5530.  Feb 1999            Motorcade  number 18438
8.3 Cummins Allison six speed with brake  retarder
Purchased Nov 28 2019

Re: Good Video for those with the 8.3 Cummins under the bed

Reply #3 –
Be careful if in a state where inspections are required.  One look by even a semi-competent tech will show that you can not meet the EPA standards for your newer year model engine with a P pump.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Good Video for those with the 8.3 Cummins under the bed

Reply #4 –
Quote from: wolfe10 –
Be careful if in a state where inspections are required.  One look by even a semi-competent tech will show that you can not meet the EPA standards for your newer year model engine with a P pump.
Thanks Brett I'm in Canada not so strict here  in the Maritime but do travel into the states yearly that the only thing I worry about Is that pump on my traveling the story's you hear
Rick & Hilda looking forward to full- timing one day for now couple of months at a time
1999 U270 3602
Built number  5530.  Feb 1999            Motorcade  number 18438
8.3 Cummins Allison six speed with brake  retarder
Purchased Nov 28 2019
 

Re: Good Video for those with the 8.3 Cummins under the bed

Reply #5 –
Quote from: Cape Bretoner –
If you change the cups to p pump how's it done my cup  pump is electronic and the P pumps are they not mechanical is that address in the kit you mentioned I read that it was about a $2000 job would it pay to change it over or what kind of a filter kit or water separator may be add into the line to protecting it
Lift pumps are small pumps that may be bolted to the side of the P pump. They may (or not) have a hand pump built in. They are also pretty trouble free. Others may install electric pumps to supply the fuel. CUPS injection pumps also don't like low fuel pressure/volume and extra filters and electric pump are never a bad idea.

Conversion to P pump may not require different injectors. I'm not an expert as MBZ OM617 diesels were my specialty along with fair knowledge of Detroit 2 cycles.

No, never bad to install an extra filter like I did on our PowerTech generator. Over 90% of a diesel's problems involve the fuel system. A plentiful supply of clean fuel keeps them happy for a very long time.

No smog inspection here in California for diesel RVs. When I installed a turbo 7.3 diesel in our old SOB, I no longer had to go through smog. I did have to take it to a referee to certify it was diesel. He asked me to start it and when he heard the diesel clatter, he smiled and signed me off.

Pierce
Pierce and Gaylie Stewart
'93 U300/36 WTBI
Detroit 6V-92TA Jake
1140 watts on the roof
SBFD (ret)