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| | | | Joined: Jul 2012 Posts: 306 Shop Shark | | Shop Shark Joined: Jul 2012 Posts: 306 | i installed oil and water temp gauges and i found out a few things, the oil pressure starts out about 40 and as it get warmer it drops to about 20 as long as you are going 40 to 50 mph its about 20 to 25 psi, now thw crazy thing is when you turn to the left it drops to 0 but it comes back up in a few seconds ( 5 to 10 ) then back up to 25 turn the wheel to left again and drops why is that ,, the temp gauge reads about 170 until you stop at red light then it goes to 190 maybe more it does drop back to 170 or 180 after you start going again ,,, can some help with the oil dropping when turning to left
thanks guys
1958 chevy biscayne
235 6 cyl 1 barrel
2 speed PG tranny
| | | | | Joined: Oct 2002 Posts: 4,066 Bolter | | Bolter Joined: Oct 2002 Posts: 4,066 | don't turn left.............might check and make sure your oil is full............could just be the gauge...... what did it show before you installed the new gauge...not sure why the temp would come up while stop at a red light... but if it comes down quick it probably is ok.. might idle it in the drive and see how hot it gets... should take awhile or something is wrong
Redryder pixMy HotrodA veteran - whether active duty, retired, national guard, or reserve - is someone who, at one point in his or her life, wrote a blank check made payable to The 'United States of America', for an amount of "up to and including my life."I am fighting cancer and I am winning the fight | Pain is part of life; misery is an option. | | | | | Joined: Jul 2012 Posts: 306 Shop Shark | | Shop Shark Joined: Jul 2012 Posts: 306 | i just gauges at parts house , all i had before was light ,its a brand new gauge and the oil is full so got me
thanks
1958 chevy biscayne
235 6 cyl 1 barrel
2 speed PG tranny
| | | | | Joined: Apr 2010 Posts: 283 Shop Shark | | Shop Shark Joined: Apr 2010 Posts: 283 | i installed oil and water temp gauges and i found out a few things, the oil pressure starts out about 40 and as it get warmer it drops to about 20 as long as you are going 40 to 50 mph its about 20 to 25 psi, now thw crazy thing is when you turn to the left it drops to 0 but it comes back up in a few seconds ( 5 to 10 ) then back up to 25 turn the wheel to left again and drops why is that ,, the temp gauge reads about 170 until you stop at red light then it goes to 190 maybe more it does drop back to 170 or 180 after you start going again ,,, can some help with the oil dropping when turning to left
The last time I had a chevy do that was with a friends 61 impala with a 348 in it.
we suspected trouble with the pump pickup so removed the pan to find the strainer and pickup tube had fallen out of the pump and on a turn the oil would rush away from the hole in the pump.
Fix it soon or you will regret it.
Probably adding a couple quarts to much oil will buy you some time before disaster.
No it won't hurt to have too much oil in it compared to starving the pump and bearings.
thanks guys
Bob Taylor
| | | | | Joined: Jul 2012 Posts: 306 Shop Shark | | Shop Shark Joined: Jul 2012 Posts: 306 |
1958 chevy biscayne
235 6 cyl 1 barrel
2 speed PG tranny
| | | | | Joined: Mar 2011 Posts: 457 Shop Shark | | Shop Shark Joined: Mar 2011 Posts: 457 | Was gonna say check the pickup tube, but Bob beat me to it. I agree; and fix it NOW! 
Last edited by 40casey; 09/01/2012 10:07 PM.
1940 Chevy 1/2 ton pickup "KC"
A day without sunshine is like, well, ..... dark!
| | | | | Joined: Jul 2012 Posts: 306 Shop Shark | | Shop Shark Joined: Jul 2012 Posts: 306 | well thanks guys , i need to pull the moror now i tried to pull the oil pan and it dont come off unless you pull the pan, the cross member wont let it
thanks again
1958 chevy biscayne
235 6 cyl 1 barrel
2 speed PG tranny
| | | | | Joined: Jul 2012 Posts: 306 Shop Shark | | Shop Shark Joined: Jul 2012 Posts: 306 | is it better to pull the motor and trany together??? i was going to redo the tranny , i figure might as well ,, its ok i guess seems there is no problem other than its takes longer to shift than i think , i did change the mod value no help the old one did have fluid in it too
thanks
1958 chevy biscayne
235 6 cyl 1 barrel
2 speed PG tranny
| | | | | Joined: Apr 2010 Posts: 283 Shop Shark | | Shop Shark Joined: Apr 2010 Posts: 283 | Absolutely the best way to go is pull engine and transmission together on those cars.
If you can find a spare transmission yoke to insert in the transmission you won't even have to lose any fluid.
As far as irregular shifting is concerned,remember, correct adjustment of throttle/transmission linkage is necessary to proper shift points too.
Bob Taylor
| | | | | Joined: Jul 2012 Posts: 306 Shop Shark | | Shop Shark Joined: Jul 2012 Posts: 306 | thanks enginenut will do as far as pulling both be a good time to clean it up ,i am going to do some research on pulling ,we did pull the 289 from my sons stang ,i want to see if the front end come off easy like the rad support it would help i know ,and i say i need one of the motor adjusters too the thing that lets you tilt the motor?? we didnt have one when we did the 289
thanks again for thr info
1958 chevy biscayne
235 6 cyl 1 barrel
2 speed PG tranny
| | | | | Joined: Apr 2010 Posts: 283 Shop Shark | | Shop Shark Joined: Apr 2010 Posts: 283 | I can see where getting enough angle and height might be a problem when using a floor sitting type engine hoist.
My thinking of removal of engine from these cars was using a overhead hoist which had adequate lift to come high and angle down considerable to clear the radiator yoke.
We just used a chain long enough to go around the assembly as a sling in the proper place for the angle we wanted.
I find boltiing with short chains to something up high sometimes limits the ability to work that angle need without a balancer.
Bob Taylor
| | | | | Joined: Jul 2012 Posts: 306 Shop Shark | | Shop Shark Joined: Jul 2012 Posts: 306 | well i added 1 qt of oil and it made a world of difference never seen the oil drop in turns and never seen it drop below 25 at idling so a big help still had the rattle sound right before shift, so still might a bearing bad
thanks for the info
1958 chevy biscayne
235 6 cyl 1 barrel
2 speed PG tranny
| | | | | Joined: Jul 2012 Posts: 306 Shop Shark | | Shop Shark Joined: Jul 2012 Posts: 306 | I guess someone changed the oil pan? or has a different dp stick?
1958 chevy biscayne
235 6 cyl 1 barrel
2 speed PG tranny
| | | | | Joined: Feb 2004 Posts: 29,751 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,751 | If it's rattling, you need to get that oil pan off and inspect the bearings, before your annoying noise turns into a hole in the block where a locked-up connecting rod came through. If that means pulling the engine, so be it. It's possible a bearing change now might avoid a crankshaft replacement later. If the crank is worn out of round or tapered, it needs to be reground and proper-sized bearings installed. Let it continue to knock, and you'll end up with a boat anchor instead of an engine.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jul 2012 Posts: 306 Shop Shark | | Shop Shark Joined: Jul 2012 Posts: 306 | well i want to see if by adding more oil helped , after i added 1 qt my oil pressure stayed above 25 thats great for me ,,i am going to drive it more today and see ,maybe some changed the oil pan ,that explains me not being able to remove it if they swapped it for a 7 gt ,, i dont know
thanks i'll post later what i find
1958 chevy biscayne
235 6 cyl 1 barrel
2 speed PG tranny
| | | | | Joined: Jun 2009 Posts: 1,596 'Bolter | | 'Bolter Joined: Jun 2009 Posts: 1,596 | You should really take the pan off, as you don't know what horrors are hiding in there that you're just bandaiding. | | | | | Joined: Jul 2012 Posts: 306 Shop Shark | | Shop Shark Joined: Jul 2012 Posts: 306 | I say i will i need to get a long weekend to do it, i know a person can have the motor out in a few hours, i am kinda afraid to see what's in there and i really need to address the water jackets too, does anyone know how to adjust the throttle valve cable?
Thanks Guys
Last edited by lilrobo; 09/05/2012 4:50 PM.
1958 chevy biscayne
235 6 cyl 1 barrel
2 speed PG tranny
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