Cat 3208TA turbo overheating -- Buzzy's Question and Answer Forum

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Subject:

Cat 3208TA turbo overheating

Author:
Gerry Vicha

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Date Posted: 09/ 19/ 01, 7:38pm

I have a 1990, 36SP with 23,000 actual miles,630 engine hours. I am Having a problem with the Pyrometer reading 900+ degrees to near 1150+ degrees when the engine is on a hard pull. These tempratures seam dangerously high to me. I have replaced the air cleaner, all belts, water pump, and recored the radiator. I have also noted that it only developes a maximum of 10 Pounds of Turbo Thrust, other turbo charged Cat engines I have driven would develope up to 30 pounds of thrust while never exceeding 950 degrees in temprature. Anyone have any ideas whats wrong????? Thanks
Gerry @ GRVMantuaO@aol.com

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Replies:

[> Subject: Re: Cat 3208TA turbo overheating
Author: Harvey Lawrence [ Edit \| View ]	Date Posted: 09/ 20/ 01, 2:43pm first...if your engine exhaust is smoking on a hard pull and the pyro heat is going up, probably you are dumping too much fuel into the cylinders and calibrations may be in order. If the engine exhaust is not smoking and you are getting higher temps then best you check the engine timing, it may be a little off. Harv [ Post a Reply to This Message ]

[> [> Subject: Re: Cat 3208TA turbo overheating
Author: Gerry Vicha [ Edit \| View ]	Date Posted: 09/ 22/ 01, 2:49pm I got your reply, Thanks , I took it to a Cat dealer today,09/22/01, and they could find nothing wrong, engine was set to spec's. They suggested advancing the timeing 4 Degrees to improve preformance. Thanks for your reply !!! [ Post a Reply to This Message ]

[> Subject: Re: Cat 3208TA turbo overheating
Author: John Wentling [ Edit \| View ]	Date Posted: 09/ 21/ 01, 8:47am Have a 90 SP36 also the temp ranges and boost are the same that mine run. Accoring to BB they are with in spec. Mine has some smoke on hard pull. Gets about 5.5 Miles per Gallon 77000 Miles and 1675 Hrs on engine [ Post a Reply to This Message ]

[> [> Subject: Re: Cat 3208TA turbo overheating
Author: harvey lawrence [ Edit \| View ]	Date Posted: 09/ 21/ 01, 6:39pm rather than talk to blue bird I talked to a very good CAT dealer and he seemed to think tha the temps mentioned were a bit high. suggest you do the same to see wha they tell you. I contacted EA Martin in Springfield MO Harv [ Post a Reply to This Message ]

[> Subject: Re: Cat 3208TA turbo overheating

Author:
Frederick C. Riester
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Date Posted: 09/ 30/ 01, 7:47am

The dash guage is calibrated in PSI and the owner's manual says you should see 23.2 PSI (or at least that what my '89 36SP manual says) but I learned at the factory that is a typo. I had some major work done a couple of years ago at the factory and, after some research by the service people, was told that the 23.2 is for inches of water (or mercury - yes I know there is a big difference) and that measured in PSI the max is 12.5 PSI.

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