Thread: More Holden Trouble

If the engine oil is old,maybe change the oil & filter & fill it up with a thicker oil.

Probably putting off the inevitable.....but may help for a while.

Careful with the water pump bearing as sometime they go & put the fan into the radiator,although on yours i dunno how close the rad is to the fan.

Good luck

Jason, yes as Paul says be careful with leaving the water pump, they are pretty cheap and easy to replace. A lot cheaper than a radiator

The oil consumption is not unusual for these engines in a LR, as the gearing makes them rev harder than they like. I would say that it is most likely a oil control ring issue although could be valve stem seals/ guides also.

They aren't renowned their piston crown strength either, I have seen one disintegrate in the bore and the conrod force its way into the water jacket...

Can you pull the spark plugs and post up a photo for us to take a look at so we can advise further? Leave them in order 1 to 6 left to right.

JC

Originally Posted by justinc

Jason, yes as Paul says be careful with leaving the water pump, they are pretty cheap and easy to replace. A lot cheaper than a radiator

The oil consumption is not unusual for these engines in a LR, as the gearing makes them rev harder than they like. I would say that it is most likely a oil control ring issue although could be valve stem seals/ guides also.

They aren't renowned their piston crown strength either, I have seen one disintegrate in the bore and the conrod force its way into the water jacket...

Can you pull the spark plugs and post up a photo for us to take a look at so we can advise further? Leave them in order 1 to 6 left to right.

JC

Thanks i will get some pics as soon as i can get at my toolbox hopefully this arvo..

Ok guys i took some pics there not the best but they mite help i will try & get some better ones tomoz.
the plugs are in order from RIGHT to LEFT i put them on the gaurd as they came out starting with the front one first..










from front to back starting from the right side..

I also think the holley needs a good tune ,I have never tuned a 350 onle ever had the 600 or larger ,so i better get me holley book & parts list out & have a look through..

They look pretty good Jason, bit hard to tell but I also reckon the Holley jetting seems fine looking at the colour of the insulators etc.
Possibly a little lean for a carb engine but really not bad at all
JC

Originally Posted by justinc

They look pretty good Jason, bit hard to tell but I also reckon the Holley jetting seems fine looking at the colour of the insulators etc.
Possibly a little lean for a carb engine but really not bad at all
JC

Thanks for that,thats reasuring i will try & dig out my compresion tester & also get some better pics ...

I would just monitor the oil consumption.
My guess is you have dilution in the sump(moisture/unburnt fuel etc) and as you have just done a heap more work shifting you have burnt the dilution off(NORMAL).
Remeber,a holden 6 sump is marginal capacity wise in a Series and holden 6s always use oil.
As mentioned give her an oilchange and upgrade to a better spec oil,try Penrite HPR30 for winter,Penrite HPR50 for summer.
Look into the plug length,judging by the carbon on the threads they look to be too long,cant be too far from hitting the pistons
Andrew