EA82 compression test psi?

[NorthernWestern]

What’s good compression test on EA82?

Should be 180psi?

Thanks

NW

[idosubaru]

They’re not that high. Roughy 150-170, more important is the numbers should be within about 10% of each other for all cylinders.

[jono]

Can also depend on the ac curacy of your gauge. Most of my ea81s have offered up 180 to 190 at operating temp

[jono]

I did mine today to quell a curiosity and to fit some Denso U groove copper core spark plugs I got a few years back. Last time I fitted these to another Sube I repeatedly got better fuel consumption despite old plugs not that old yet favoured NGK.

This lot have the smaller 5/8" hex so socket clears the head casting better.

 

This ea82 has only 200,000 km on it, yet previous owner an american uni guy studying/ working in Oz would drive it to uni as it started to overheat, park it for the day to cool and do same on trip home. Minutes after I bought it I whipped out my 12 mm socket and flocked the thermos tat. Flick flick ..ten years ago $250 for pristine touring wagon was a steal.

 

Comp was 180. 190. 180 and 170 in no 4

[idosubaru]

190 is high and above average.

Are EA81s different than EA82?

Is that in units PSI?

 

It also varies depending if engine is warm, all plugs are removed, ambient conditions, throttle propped open, air filter removed, and directly with engine RPM - so there’s a ton of room for variation and high numbers aren’t really the goal. Generally you look at percent deviation from one another.