63 replies to this topic

[hanra]

I noticed when fitting my oil sender that it was a very close fit to the block.... Had a look at some pics of other SLRs and noticed the sender sits out at more of an angle toward the front of the car.

Is this oil pump i have aftermarket??? Or perhaps high volume?

[dattoman]

If its cast iron its aftermarket

Original ones were aluminium

[hanra]

Thanks datto. Yeah it seems to be cast. Solves that one!!

[yel327]

It might be a Commondore style replacement. I remember when I put an old "new" (been sitting around in box for 15 years) J&P one into a VN a few years back the sender was in a different spot to the original VN one. Never looked to see if the VN was the same as HT-WB pumps. It may still be here somewhere.....

[a9x868]

Thanks datto. Yeah it seems to be cast. Solves that one!!

brad
i was told by my engine builder that if you want good oil pressure
buy a brand new gmh oil pump
i followed his advice and have great oil pressure
yes original gm pumps to my knowledge
are aluminium
almost top of the gauge when cold and comes down when hot
checked with an external gauge to figure out where the factory
gauge was reading
now all i have to do is sort out a tricky fuel gauge!
i have had to earth the sender unit to the fuel pipe to get any reading
but i don't believe it is accurate still
would hate to run out of fuel and have to leave the car on the side of the road
any hint's?????
cheers davemc

[dattoman]

Try buying one nowdays though ... the genuine alloy Holden one that is.... they are gone

[WhiteA9XS]

now all i have to do is sort out a tricky fuel gauge!
i have had to earth the sender unit to the fuel pipe to get any reading
but i don't believe it is accurate still
would hate to run out of fuel and have to leave the car on the side of the road
any hint's?????
cheers davemc

hey davemc , my sender was not reading correct so i pulled it out from the tank checked the up and down movement against the reading on the gauge , i ended up bending the arm slightly a little at a time to get it to read empty with only a few litres in the tank ....

[REDA9X]

The genuine Holden ones never changed, right up to the last Holden engine VT.

[yel327]

^^ You mean VSIII not VT don't you Red?!?

[REDA9X]

No, I mean VT. My VT has the exact same pump as my A9X, and it's exactly the same as the NOS one I have.

[hanra]

hey davemc , my sender was not reading correct so i pulled it out from the tank checked the up and down movement against the reading on the gauge , i ended up bending the arm slightly a little at a time to get it to read empty with only a few litres in the tank ....

I've soldered a wire onto the fuel sender body housing assy and have it grounded to the body of the car because my fuel tank and straps are all 2 pac'd. The sender should read from about 12ohms to 75ohms I think...? I've got a short video of me bench testing mine somewhere I'll dig it up. But have no idea how accurate it is in the tank as I've not yet applied power or put fuel in it.

[hanra]

Righteo. I'll have a look over it for any markings.

The pump would be of a fair age id say, fitted when ever the motor had its rebuild with REPCO pistons.

In saying that though, when I had it off, internally it all appeared very good and measured up to spec.

[S pack]

I've soldered a wire onto the fuel sender body housing assy and have it grounded to the body of the car because my fuel tank and straps are all 2 pac'd. The sender should read from about 12ohms to 75ohms I think...? I've got a short video of me bench testing mine somewhere I'll dig it up. But have no idea how accurate it is in the tank as I've not yet applied power or put fuel in it.

10 ohms full to 73 ohms empty (nominal specs). I found the thermal sender units averaged 10 to 71 ohms for LH/LX, HQ,J,X,Z and WB.

[ls2lxhatch]

Righteo. I'll have a look over it for any markings.

The pump would be of a fair age id say, fitted when ever the motor had its rebuild with REPCO pistons.

In saying that though, when I had it off, internally it all appeared very good and measured up to spec.

The JP high volume pumps have longer gears and therefore a longer body than the standard volume pumps.

If you measure the length of the pump body and compare it with the length of a standard body you should be able to work out whether it is high volume or not.

Edited by ls2lxhatch, 22 August 2012 - 12:58 AM.

[76lxhatch]

^ Yep and if my eyesight doesn't fail me I reckon the pic above shows a high volume pump; I wouldn't run that unless you have a higher volume sump to match

[hanra]

The sump I have I dont think is stock. What is the oil volume of a stock sump? I havnt put oil in the motor yet but will be soon.

[yel327]

No, I mean VT. My VT has the exact same pump as my A9X, and it's exactly the same as the NOS one I have.

What I meant was the last of the Holden V8's were in VSIII not VT. Last sedans were VSIII Statesman and Caprice and the last Commodores were VSIII utes.

[REDA9X]

What I meant was the last of the Holden V8's were in VSIII not VT. Last sedans were VSIII Statesman and Caprice and the last Commodores were VSIII utes.

I don't know what the last production dates were for VS111 and VT series one, but either way it's a matter of wording. I didn't say the VT was the last car to be fitted with the Holden block I said, "The genuine Holden ones never changed, right up to the last Holden engine VT". I was under the impression the HSV XU8 was built to celebrate the last of the Holden engines, but the series 3 VS could well be the last of the Holden V8's considering Holden didn't update the ute or Statesman till the release of the VX.

[TerrA LX]

I thought all the carby ones were alloy and all the PFI ones were iron.

[yel327]

I don't know what the last production dates were for VS111 and VT series one, but either way it's a matter of wording. I didn't say the VT was the last car to be fitted with the Holden block I said, "The genuine Holden ones never changed, right up to the last Holden engine VT". I was under the impression the HSV XU8 was built to celebrate the last of the Holden engines, but the series 3 VS could well be the last of the Holden V8's considering Holden didn't update the ute or Statesman till the release of the VX.

Sorry Red, I misread your wording, you did indeed say the last Holden engine VT which I read as the last Holden engine, in VT not the last Holden engine in a VT. My bad!
For reference sake, the Holden 304 finished in VT in May 1999 with VTII production starting late in May 1999 (350ci 220kW stroker actually did finish at VTII release). VSIII Statesman and Caprice was replaced by WH in late June 1999. VSIII utes ran until very late 2000, although the Holden V8 engines had run out by that time. I believe they finished earlier in 2000 - I have seen Olympic Editions with 304 engines and these were May/April 2000. I know I tried to buy a V8 VSIII ute in late 2000 but they were all gone. Oddly enough VSIII kept running with the VSII 304 past VT introduction in August 1997 and didn't get the roller cam, sequential engine until October 1998. VSIII actually kept going past VX release in August 2000. VU utes weren't released until December 2000, there were still VSIII's for sale in yards well into 2001. I bought the second last manual V6 ute on Xmas Eve 2000, there was a black S pack left in WA. Lots of 3 seat column shift auto base models and T-bar S-packs were left at that time.
The above is why I always refer to these engines as VN-VSIII, not VN-VT as many call them.

Cool to know that the VT oil pumps are the same as early ones, i'll try to grab a new or low use one for my old HJ Premier. It only has 108,000kM on it but a spare is worth grabbing.

Edited by yel327, 22 August 2012 - 08:49 AM.

[REDA9X]

Good reading. My VT is one of the 220i stroker engines, being in a Senator and being a 6 speed manual make it quite rare.