Sup w/them 2024 Summer Projects?
#3526
EvoM Guru
iTrader: (1)
Aluminum heads need decked every time, they never stay straight once torqued and heat cycled, then removed. Cast iron blocks usually don't need surface if they were decked correctly when originally built.
#3527
EvoM Guru
ive only decked the head side. the main concern is that it hasnt gone soft. if its overheated then id be worried but if youve kept the temp under control probably okay still. but the aluminium does go soft over time anyway.
If you dont have time then maybe just throw a gasket in and hope for the best but id say it will pop again. and i wouldnt run it with a popped gasket your just asking for trouble. if the water tracks in the wrong direction it can **** the block
If you dont have time then maybe just throw a gasket in and hope for the best but id say it will pop again. and i wouldnt run it with a popped gasket your just asking for trouble. if the water tracks in the wrong direction it can **** the block
#3528
EvoM Guru
iTrader: (2)
I thought the same the first time my head warped. Within 3 track days it blew out the head gasket again. Decked both head and block the next time and no more head gasket issues. Surface finish is critical when you're using an MLS gasket. If the surface finish isn't there it won't seal no matter what the material is.
#3529
EvoM Community Team Leader
iTrader: (60)
Though it came new, from Mitsu, it was still basically a "rebuild" according to the labeling. I thought that was weird. Maybe a factory reman?
The following users liked this post:
kyoo (Aug 11, 2021)
#3534
EvoM Guru
iTrader: (1)
I thought the same the first time my head warped. Within 3 track days it blew out the head gasket again. Decked both head and block the next time and no more head gasket issues. Surface finish is critical when you're using an MLS gasket. If the surface finish isn't there it won't seal no matter what the material is.
The fire ring in the head gasket dents the deck surface of the head when it bites into it. You can't not surface the head. The block doesn't always need it if it's still flat and the finish is good.
#3535
EvoM Guru
iTrader: (1)
Myles relays the info he gets from whatever dealer they buy their mitsu parts from. My car needed an alternator last month, and I was told the OEM's are NLA/disco by the dealer I use here in Vegas. I got an AC Delco off rock auto. See how it holds up. I may see if a local rebuilder can rebuild/fix mine; all the case bolts fell out lol.
#3536
EvoM Community Team Leader
The alternator components still seem to be available. Should be no problem to rebuild one.
https://partsouq.com/en/catalog/genu...&uid=117827&q=
Common Fail items are Brushes
https://www.mitsubishidirectparts.co...lator-md618689
Voltage Regulator
https://www.mitsubishidirectparts.co...lator-md619268
Rectifier
https://www.mitsubishidirectparts.co...ifier-md619663
https://partsouq.com/en/catalog/genu...&uid=117827&q=
Common Fail items are Brushes
https://www.mitsubishidirectparts.co...lator-md618689
Voltage Regulator
https://www.mitsubishidirectparts.co...lator-md619268
Rectifier
https://www.mitsubishidirectparts.co...ifier-md619663
#3537
EvoM Guru
iTrader: (2)
Tells me the block was not surfaced right/well the first time and you had an ongoing issue because it.
The fire ring in the head gasket dents the deck surface of the head when it bites into it. You can't not surface the head. The block doesn't always need it if it's still flat and the finish is good.
The fire ring in the head gasket dents the deck surface of the head when it bites into it. You can't not surface the head. The block doesn't always need it if it's still flat and the finish is good.
I measured the deck on the block, it wasn't warped at all, which is why I didn't get it decked. The head was warped around .002" so I only got the head decked. Head gasket leaked shortly after rebuild. Tore it down again, got head and block decked .001", no more issues. Both times fairly high end CBN decking mills were used.
#3538
EvoM Guru
iTrader: (4)
The alternator components still seem to be available. Should be no problem to rebuild one.
https://partsouq.com/en/catalog/genu...&uid=117827&q=
Common Fail items are Brushes
https://www.mitsubishidirectparts.co...lator-md618689
Voltage Regulator
https://www.mitsubishidirectparts.co...lator-md619268
Rectifier
https://www.mitsubishidirectparts.co...ifier-md619663
https://partsouq.com/en/catalog/genu...&uid=117827&q=
Common Fail items are Brushes
https://www.mitsubishidirectparts.co...lator-md618689
Voltage Regulator
https://www.mitsubishidirectparts.co...lator-md619268
Rectifier
https://www.mitsubishidirectparts.co...ifier-md619663
Although the combined price of those replacement parts adds up to more than 2X a remanufactured alternator, so maybe I'll be getting some aftermarket replacement parts.
Also, the alternator replacement job isn't as easy as it looks. It's not exactly hard, but I greatly underestimated how much time and effort it was going to require because it looks like it should be a quick job.
I got a similar story from another vendor. I get the impression that parts routinely are out of stock in the United States until another surprise shipment shows up from Japan and suddenly they're available again for a little while. Hard to know when NLA is really NLA.