Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

Astron 1 or 2?

Tech Talk for Mitsubishi owners.

Moderator: -Scott-

Post Reply
Posts: 791
Joined: Fri Mar 17, 2006 7:45 pm
Location: Gold Coast QLD

Astron 1 or 2?

Post by NCpaj »

gday fellas

i just got a question about the 2.6 petrol motor- i recently got some of those 2.6 astron 2 badges off a sigma- iam going to put them on the paj as a bit of bling (lol :D ) and i was jsut wondering if my 4g54 was a astron 1 or 2?

its a 1986 jan NC

thanks ofr the help
Real men smoke clutches
86' Pajero
2" OME, steel bar goodness, MTZ's, Exxon Valdez-esk fuel consumption
Posts: 791
Joined: Fri Mar 17, 2006 7:45 pm
Location: Gold Coast QLD

Post by NCpaj »

anyone??
Real men smoke clutches
86' Pajero
2" OME, steel bar goodness, MTZ's, Exxon Valdez-esk fuel consumption
Posts: 14209
Joined: Sun Jan 11, 2004 11:36 am
Location: Adelaide

Post by -Scott- »

OK, I'll fark this up for you.

Manifold wise, they're the same pattern as Astron 1. But I believe pistons are more like Astron 2 (flat top instead of dished.)

I believe Astron 2 use hydraulic tappets, Paj has adjustable tappets. Not sure how "block width" lines up: in the Sigma, manuals and autos have slight differences in "block width", not sure which one the Paj "matches."

Which is why I didn't answer earlier - because the short answer is "NFI". :D
Posts: 791
Joined: Fri Mar 17, 2006 7:45 pm
Location: Gold Coast QLD

Post by NCpaj »

OK, I'll fark this up for you.

Manifold wise, they're the same pattern as Astron 1. But I believe pistons are more like Astron 2 (flat top instead of dished.)

I believe Astron 2 use hydraulic tappets, Paj has adjustable tappets. Not sure how "block width" lines up: in the Sigma, manuals and autos have slight differences in "block width", not sure which one the Paj "matches."

Which is why I didn't answer earlier - because the short answer is "NFI".
ahhh ok :D :D :D

righto so more or less its an astron 1- its just got those '2.6 astron 2 badges' ill just change it to read astron 1 then
Real men smoke clutches
86' Pajero
2" OME, steel bar goodness, MTZ's, Exxon Valdez-esk fuel consumption
Posts: 27
Joined: Wed Aug 30, 2006 10:45 am

Post by blown26paj »

exhaust patern is the same in both astron 1 and 2 however the inlet manifold are different i efi a couple of l200s years ago and found out the hardway on one. the best way to tell without pulling too much apart is lift the rocker cover at the back of the rocker gear there are four retaing bolts on astron 2, astron 1 only retained by 2 bolts they are interchangable the astron 1 did have dished pistons as i put them into mine to help decompress mine.
supercharged nb paj swb f&r lockers,3.0 nh paj swb arb lockers,nl lux pack 2.8 paj lwb front locker
Posts: 1908
Joined: Thu Aug 04, 2005 8:09 pm
Location: central queensland

Post by known 2 »

hey riley, was at bue repairs last friday and saw ur pajero there.. no mudies though?
kaylee 2004 hdj78 RV. 33 mickey atz's, winchbar, 3i lift, 3i exhoust, spoties, roofracks and ufh. pimped interior .

86 lwb zook wt soa, 33's, locked, bard up, prety lights. monster tacho:/
Posts: 791
Joined: Fri Mar 17, 2006 7:45 pm
Location: Gold Coast QLD

Post by NCpaj »

known 2 wrote:hey riley, was at bue repairs last friday and saw ur pajero there.. no mudies though?
yeah that would have been it- i was getting a wheel alignment- i only work up at koala

no muddies?-lol the tyre nosie on the highway gives me the shits and im trying to save the mtz just for bush trips


i heard u got a troopy--nice

exhaust patern is the same in both astron 1 and 2 however the inlet manifold are different i efi a couple of l200s years ago and found out the hardway on one. the best way to tell without pulling too much apart is lift the rocker cover at the back of the rocker gear there are four retaing bolts on astron 2, astron 1 only retained by 2 bolts they are interchangable the astron 1 did have dished pistons as i put them into mine to help decompress mine.

ahh ok- i remeber dished pistons when i did the rebuild- so its an astron 1 then cool
Real men smoke clutches
86' Pajero
2" OME, steel bar goodness, MTZ's, Exxon Valdez-esk fuel consumption
Post Reply

Who is online

Users browsing this forum: No registered users and 22 guests