EA 81.. Can i run on unleaded?

Gannon · Post by **Gannon** » Fri May 04, 2012 8:39 pm

As Jono has pointed out, if the engine has alloy heads, it will be fine. The valve saver is only needed on engines with cast iron heads because they dont have separate valve seats, they are simply machined into the head

steptoe · Post by **steptoe** » Fri May 04, 2012 9:10 pm

Then...there is also the comment of the day that Japan had ULP and no super for years before Australia and production was not gonna change for our small market

Brumby Kid · Post by **Brumby Kid** » Fri May 04, 2012 9:35 pm

So this is something that we should look out for if buying old heads, or if we have painted our rockers etc.

YouTube · Post by **El_Freddo** » Sat May 05, 2012 12:51 am

Brumby Kid wrote:So this is something that we should look out for if buying old heads, or if we have painted our rockers etc.

Not for the subaru! I've not heard of cast iron heads for the subaru. So as we've said like Gannon has above, the EA81, black or blue rocker covers will be fine for use with unleaded and NO valve saver additive.

Cheers

Bennie

Gannon · Post by **Gannon** » Sat May 05, 2012 8:11 am

El_Freddo wrote: I've not heard of cast iron heads for the subaru.

I didnt mean Subaru's had iron heads, I was referring to other engines like Holden 186, 202 etc.

YouTube · Post by **El_Freddo** » Sat May 05, 2012 9:32 am

Gannon wrote:I didnt mean Subaru's had iron heads, I was referring to other engines like Holden 186, 202 etc.

Yeah I know this Gannon - maybe I should have been more specific. I quoted Brumby Kid as I thought this is what he was alluding to...

Several of us have basically said the same thing in different ways now yet some members are still asking about it. Read the thread people!

Cheers

Bennie

Brumby Kid · Post by **Brumby Kid** » Sat May 05, 2012 9:38 am

Just clarifying as I know swapping heads is common for these engines.
Thank you mr fuji.
We need to make this and many other threads a one post sticky. Where after discussing we have clearly answered the problem and no more discussing needed, all the important stuff can go into one simple post.

Cheers Cam

Tweety · Post by **Tweety** » Sun May 06, 2012 10:39 am

Well my ea81 has black valve covers so all good there anyway but...oh dear!

I just renewed my water pump...and original one from frog (thanks Andy) and it is coloured.....BLUE!!!! yikes!

Does that mean I cant run green coolant?

Blue doesnt go with yellow Andy

mud_king91 · Post by **mud_king91** » Sun May 06, 2012 12:15 pm

steptoe wrote:You'll read somewhere comment from an engineer society or the like, that all alloy heads use the hardened stellite valve seats that ULP and LPG requires for good valve life - so any engine with alloy head should be suitable to run ULP without any additive

pretty much as correct as you can get