98hardtopSS

new to the vert game. just purchased a 97 z28 to keep the miles off my ss. can anyone tell me what it is it looks like atf? thanks alot guys

2000TurboVert

iTrader: (17)

Im not sure about the LT1 body style, ON my 2000 its in the trunk on the left hand side, theres a little flip top where you can see the brass fittings through!

I do not know how to remove it, but Im sure someone on here will be more than happy to let you know how to accomplish that!

98hardtopSS

yeah i know right where it is, its the samething. i just want to what fluid it takes when adding to it.

Z ROADSTER

Best to call the dealer , you never know , it may be whale oil.
Are you having a problem with the top ? There a guy on here whose the expert < Dusty's his name >. Bet he could tell you .

98hardtopSS

yeah well the top wont go down, the res on the pump is near empty...i can hear it trying to pump but there is no fluid to pump

98hardtopSS

nobody knows???

2000TurboVert

iTrader: (17)

Dextron ATF is what they use.....

Type of fluid
The Chevrolet Service manual states use either Hydraulic fluid or ATF. Use what ever matches what is in system. On a new system I use Dextron® ATF.
Fabricate Filler Plug Adapter
Obtain spare Plug for reservoir (GM Part # 7596442)
Cut approx. 1/2" off of male end of plug (end inserted into pump), to allow tubing to be inserted through plug. ( figure 1)
Obtain a 2" length of tubing 7/32" O.D.
Insert modified plug and tube asm into pump reservoir (Note; remove fill plug with top in down position ONLY)
Filling and Bleeding Reservoir
Remove rear seat and Trim for well liner, to gain access to pump
Place rags ect around pump to soak up any spillage, remove fill plug
Important: if filling pump for the first time( after rebuild or replacement) Fill reservoir, before installation. This will prevent large amounts of air being drawn into system.
Install modified fill plug and tube asm. Attach a small vacuum hose to tube, submerse other end of vacuum tubing into your fill reservoir. (See figure 2) NOTE: Fill reservoir should be placed below the level of the pump reservoir. Make sure fill reservoir has sufficient fluid.
Operate top up and return to down position. Continue to run pump after top reaches full down position for 10 to 15 seconds. This will purge the air into your fill reservoir. (NOTE: Do not use a battery charger alone to power top, as you will burn the motor out. Instead use a battery and hook a charger up to it if battery runs low on juice).
Continue to run top up and down until all air has been expelled into fill reservoir. This may require refilling reservoir a few times.
Once all air is purged from system, lower top to full down position and remove fill plug/hose adapter and install original plug into reservoir. Fluid level should be within 1/4" of hole on end of reservoir. CAUTION: Do not over fill system

Z ROADSTER

I'll bet that was Dusty !

ryanmh1

But supposedly there is a GM TSB that you're supposed to use mineral oil due to premature seal failure caused by the the Dexron and/or hydraulic fluid. Fill it up with a funnel. It isn't that hard to figure out... Why the hell you would order spare parts from GM to put oil into a hole is beyond me..

quiet_storm98

iTrader: (48)

use mineral oil...there was a long thread on this a while back and apparently mineral oil is the best thing. I put some in mine last year and haven't had a problem since

98hardtopSS

thanks guys. i used atf but may switch it over to mineral oil. a funnel worked fine for me as well.

sercastiK

iTrader: (11)

i used atf it worked fine im ghetto I took a straw drilled a hole in the atf cap stuck the straw in and made my own deal to fill it up

GXPPOWER

funny i have the stock oil in mine. no issues. dont switch to mineral oil if your top works with the atf.

if its not Broke dont fix it

2000TurboVert

iTrader: (17)

I was going to say... It doesnt seem mineral oil has enough viscosity for a hyd. pump, but I could be wrong, it obvisouly works.......

ATF is what I would use... I have 125k on my convertible, and Have NEVER changed it once, and it works fine!

GR8RYD

iTrader: (3)

Are you thinking of Dustin? He gave us a lot of good information about our tops here:

Z ROADSTER

Yeah , Dustin's the man when it comes to questions about our verts !

JohnnyBs98WS6Rag

iTrader: (1)

Clarification on filling the pump w/ fluid.........