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Topic: Grand Villa Pre-Purchase Research / Advise (Read 2350 times) previous topic - next topic

Re: Grand Villa Pre-Purchase Research / Advise

Reply #50 –
Quick armchair research agrees with OP and Chuck:  80 psi at 2000 RPM does not seem to be unusual on the Cat 3208:

Cat 3208...high oil pressure 80-90psi | Heavy Equipment Forums
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"

Re: Grand Villa Pre-Purchase Research / Advise

Reply #51 –
Quote from: Pierce & Gaylie Stewart –
Not sure on your year but if you don't have transmission lockup, the transmission temp will go up on grades. I notice a big difference on ours in town where we are in first and second sightseeing. About 190 degrees on the highway but after a half hour in San Francisco, over 200 degrees.

Don't take the dash readings for voltage or temp as fact. Use a voltmeter at the dash lighter plug and also at the batteries.

Pierce
Yep, I'm going to have him put a meter on the batteries to see what the real deal is on voltage. The MT643 locks in 3rd and 4th, he was open roading it in the flats so there's no real reason he should be more than 5-10dgs off engine temp...he reported he could clearly feel the converter locking in both upper gears. I'm betting when the radiator recore/refurb got done some thing clogged/plugged/restricted the cooler circuit.
Len Barron
1988 GV36 U280 3208T(250hp)/MT643
1972 Jeep Commando LS2/4L65e
2000 Chevy Express Hightop Campervan
LBZ Duramax /6sp Allison

Re: Grand Villa Pre-Purchase Research / Advise

Reply #52 –
My trans temp sets on 160 intil I hit traffic and down gear into a town or up hill, unlocked . Once locked in 3rd or 4th it drops back down near the peg  .
My oil pressure is solid 65 at cruise
Maybe those 2 gauges share a ground?
The speed reads a touch high at 2000.  2300 is 64 true for me.
My speedo read high until it quit.
The current gps speedo reads well , about 2 less.


Re: Grand Villa Pre-Purchase Research / Advise

Reply #53 –
Quote from: Protech Racing –
My trans temp sets on 160 intil I hit traffic and down gear into a town or up hill, unlocked . Once locked in 3rd or 4th it drops back down near the peg  .
My oil pressure is solid 65 at cruise
Maybe those 2 gauges share a ground?
The speed reads a touch high at 2000.  2300 is 64 true for me.
My speedo read high until it quit.
The current gps speedo reads well , about 2 less.



I agree...Trans temp should be setting 160-180dg...the idea on the meter grounds is good, I'll ask him to check that.
Not sure what the rear gear ratio is so I don't have any way of knowing how close the 2000rpm/65mph is to being "right". But, with 40" tires  that would put it around a 3.73 if its correct.
Len Barron
1988 GV36 U280 3208T(250hp)/MT643
1972 Jeep Commando LS2/4L65e
2000 Chevy Express Hightop Campervan
LBZ Duramax /6sp Allison

Re: Grand Villa Pre-Purchase Research / Advise

Reply #54 –
Crawl under and look at the tin tag on the third member for the ratio.

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

Re: Grand Villa Pre-Purchase Research / Advise

Reply #55 –
owner got back with me, he use an IR thermometer and was getting 140dgs  when the trans temp gauge was reading 200dgs. He's going to investigate the meter grounds and see if that is the culprit.
Len Barron
1988 GV36 U280 3208T(250hp)/MT643
1972 Jeep Commando LS2/4L65e
2000 Chevy Express Hightop Campervan
LBZ Duramax /6sp Allison

Re: Grand Villa Pre-Purchase Research / Advise

Reply #56 –
Quote from: Pierce & Gaylie Stewart –
Crawl under and look at the tin tag on the third member for the ratio.

Pierce
Finally got around to this...it has a 3.91 ratio
Len Barron
1988 GV36 U280 3208T(250hp)/MT643
1972 Jeep Commando LS2/4L65e
2000 Chevy Express Hightop Campervan
LBZ Duramax /6sp Allison

Re: Grand Villa Pre-Purchase Research / Advise

Reply #57 –
Quote from: len.barron –
owner got back with me, he use an IR thermometer and was getting 140dgs  when the trans temp gauge was reading 200dgs. He's going to investigate the meter grounds and see if that is the culprit.
You want to make sure he shot next to where the temp sending unit screws in. Probably in the neighborhood of the thermostat(s).

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

Re: Grand Villa Pre-Purchase Research / Advise

Reply #58 –
Quote from: Pierce & Gaylie Stewart –
You want to make sure he shot next to where the temp sending unit screws in. Probably in the neighborhood of the thermostat(s).

Pierce
I've already replaced the sending unit, it fixed the problem...temp now matches (within about 5dgs) of what my IR gun says...typically runs about 145dgs..
Len Barron
1988 GV36 U280 3208T(250hp)/MT643
1972 Jeep Commando LS2/4L65e
2000 Chevy Express Hightop Campervan
LBZ Duramax /6sp Allison