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Topic: Boost issue and Cat 3126 parts (Read 2268 times) previous topic - next topic

Re: Boost issue and Cat 3126 parts

Reply #25 –
Quote from: gracerace –
Update........ Got her apart. Blown exhaust gasket in 2 places. Also a small leak at the waste gate, but on the discharge side.
Turbo is fine, small side play. Going to see about getting it freshened local. going to send the manifold to my guy, have it surfaced.
We tested the Waste gate solenoid, it was fine. Waste gate is closing good too.
The Cat 800 number was really nice.Found lots out about our engine when it was on the dyno.
Cheers
Not sure what you mean by side play. If you hold the shaft on both exhaust and intake and try to rock it perpendicular to the shaft it should not have play. But going left to right a little play is normal. They have bushings not bearings. I have rebuilt many as they are not very complicated.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Boost issue and Cat 3126 parts

Reply #26 –
Quote from: craneman –
Not sure what you mean by side play. If you hold the shaft on both exhaust and intake and try to rock it perpendicular to the shaft it should not have play. But going left to right a little play is normal. They have bushings not bearings. I have rebuilt many as they are not very complicated.

Thanks, minor perpendicular and side to side,very minor,
Chris and Tammy White  CDA Idaho
Previous owners 1997 U295 36' 3126 Cat 300 HP Build # 4998
Former Foretravel tech & RVIA certified tech
Former owner Custom Satellite home/RV satellites 
Former owner Vans LTD  van conversions
Unemployed, panhandler, drag racer NHRA #6348

Re: Boost issue and Cat 3126 parts

Reply #27 –
Update again...
Took the turbo in for freshening. There were cracks around the waste gate valves. Getting a refurbished one from Cat complete with solenoid, waste gate and turbo.
So the code the Silver leaf threw, wasn't lying (low boost) the code said check waste gate solenoid. therefore this would be the same symptom (waste gate slightly open).So it wasn't just the exhaust gasket leak.
Had the manifold resurfaced
Got all the gaskets/bolts coming.
She'll be right now M8's
Cheers
Chris and Tammy White  CDA Idaho
Previous owners 1997 U295 36' 3126 Cat 300 HP Build # 4998
Former Foretravel tech & RVIA certified tech
Former owner Custom Satellite home/RV satellites 
Former owner Vans LTD  van conversions
Unemployed, panhandler, drag racer NHRA #6348

Re: Boost issue and Cat 3126 parts

Reply #28 –
                                                             * UPDATE*
Our Kitty Cat is purring. Picked up at least 2 MPG.  Boost back close to factory spec's.
Did the full service on everything, plus a little detail work on the engine and Gen set.
I have a sickness, if it has an engine, it deserves to be detailed.... I should have polished the turbo..... :D
Engine pic is with turbo pipe still off.
Chris and Tammy White  CDA Idaho
Previous owners 1997 U295 36' 3126 Cat 300 HP Build # 4998
Former Foretravel tech & RVIA certified tech
Former owner Custom Satellite home/RV satellites 
Former owner Vans LTD  van conversions
Unemployed, panhandler, drag racer NHRA #6348

Re: Boost issue and Cat 3126 parts

Reply #29 –
Is cleaner then mine and I have the same sickness,only thing I would do different is next change get a cat oil filter instead of
that baldwin,they are worth the price difference.
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Boost issue and Cat 3126 parts

Reply #30 –
Quote from: John44 –
Is cleaner then mine and I have the same sickness,only thing I would do different is next change get a cat oil filter instead of
that baldwin,they are worth the price difference.
Thanks for the compliment. I was always told when I was a tech,Baldwins are the best, so I changed them all to Baldwins. I guess everyone has preferences.
Chris and Tammy White  CDA Idaho
Previous owners 1997 U295 36' 3126 Cat 300 HP Build # 4998
Former Foretravel tech & RVIA certified tech
Former owner Custom Satellite home/RV satellites 
Former owner Vans LTD  van conversions
Unemployed, panhandler, drag racer NHRA #6348

Re: Boost issue and Cat 3126 parts

Reply #31 –
Quote from: gracerace –
                                                              * UPDATE*
Our Kitty Cat is purring. Picked up at least 2 MPG.  Boost back close to factory spec's.
Did the full service on everything, plus a little detail work on the engine and Gen set.
I have a sickness, if it has an engine, it deserves to be detailed.... I should have polished the turbo..... :D
Engine pic is with turbo pipe still off.
Just curious what are the two hoses with banjo fittings that appear to connect to the insanely small tubing that appears to connect to the intake manifold. BTW That engine is cleaner than a dinner plate that I will eat off of. LOL. Oh yeah you you left a rag, below the alternator.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: Boost issue and Cat 3126 parts

Reply #32 –
Quote from: Old phart phred –
Just curious what are the two hoses with banjo fittings that appear to connect to the insanely small tubing that appears to connect to the intake manifold. BTW That engine is cleaner than a dinner plate that I will eat off of. LOL. Oh yeah you you left a rag, below the alternator.

Oh crud, that is why it is so sluggish. That darn rag. LOL...That was in the exhaust tube when I had the Turbo off.
Yup, that is the intake tubes from the charge cooler to the intake.It splits at the charge cooler with a Y hose, then two pipes to the intake. I am sure Cat had a reason for that.
Thanks for the compliment. I hate working on greasy stuff.
CW
Chris and Tammy White  CDA Idaho
Previous owners 1997 U295 36' 3126 Cat 300 HP Build # 4998
Former Foretravel tech & RVIA certified tech
Former owner Custom Satellite home/RV satellites 
Former owner Vans LTD  van conversions
Unemployed, panhandler, drag racer NHRA #6348

Re: Boost issue and Cat 3126 parts

Reply #33 –
I cover the tube with a toque, hard to leave a rag in then. Of course most of you will have to look up what a toque is.
Toby a 94 u280
Cummins 8.3
6 speed Allison
Exhaust brake


Adopted by Derek and Annabelle

Re: Boost issue and Cat 3126 parts

Reply #34 –
I thought you just spelled torque wrong!!
96 U270 BUILD 4810
85 380SL
Drummonds TN.

Re: Boost issue and Cat 3126 parts

Reply #35 –
Eh, I think is the proper response IRC. I live in KS, and not the great white North. Blast from the past, as I recall Bob & Doug Mackenzie I think, 12 days of Christmas tune, and irc a movie called strange Brew. LOL. Thanks for the memory.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: Boost issue and Cat 3126 parts

Reply #36 –
Quote from: Old phart phred –
Eh, I think is the proper response IRC. I live in KS, and not the great white North. Blast from the past, as I recall Bob & Doug Mackenzie I think, 12 days of Christmas tune, and irc a movie called strange Brew. LOL. Thanks for the memory.

LOL
Chris and Tammy White  CDA Idaho
Previous owners 1997 U295 36' 3126 Cat 300 HP Build # 4998
Former Foretravel tech & RVIA certified tech
Former owner Custom Satellite home/RV satellites 
Former owner Vans LTD  van conversions
Unemployed, panhandler, drag racer NHRA #6348