93' Miata stolen and flipped build thread
#3785
How important is temperature? The one you linked says 298 degrees, the consumer one only says "over 200 degrees".
Amazon.com - McCulloch MC1375 Canister Steam System - Carpet Steam Cleaners
Amazon.com - McCulloch MC1375 Canister Steam System - Carpet Steam Cleaners
And the reason is the heat of the steam. It is able to get the heat in the dirt/oil/paint yadda yadda much deeper and much quicker. Add that on top of 30more psi of pressure and **** melts away. So really heat just makes it easier to loosen the surface tension of the grime more easily.
Saying that. For light cleaning and occasional use you can't go wrong with the 1375. It is one of the best before you start getting into the really expensive commercial steam cleaners. I used my old one for years before I upgraded.
#3787
Good call on giving the machine shop a clean head. At the very beginning of my intake valve woes, the machine shop bead blasted the head and neglected to clean out the oil galleries. Ended up scrapping that head and it couldn't have done the short block much good either. Grrrrrrrrr . . . .
#3798
Back on track though. I was discussing solutions with Bryan and wanted to query those who have a lot of experience as well(Hornet). How far should I take this. Just replace exhaust valves and springs and call it a day? What else *should* be done while the head is off and I have the opportunity to do it right.
The head is a 99 and the P.O. had it:
ported, polished, 3 angle valve job, backcut valves. So not much left to do besides springs and stems right? I was told the 99 had solid lifters so shim under buckets not necessary(also pricy).
So don't really wish to spend a lot but I also want to do it properly to avoid this issue again (hopeful not expected).
Part of me wants to install a water/meth kit to help eith my EGT's, a little insurance against 91 octane and the lack of access to E85
The head is a 99 and the P.O. had it:
ported, polished, 3 angle valve job, backcut valves. So not much left to do besides springs and stems right? I was told the 99 had solid lifters so shim under buckets not necessary(also pricy).
So don't really wish to spend a lot but I also want to do it properly to avoid this issue again (hopeful not expected).
Part of me wants to install a water/meth kit to help eith my EGT's, a little insurance against 91 octane and the lack of access to E85
#3799
I think the light doubles are nice insurance if you track the car a lot. Also good for holding the intakes closed against boost. I'm back to running OEM valves. The Supertech's self-destructed just as quickly as the OEM's back when I was dealing with the other machine shop. I couldn't tell any real advantage for the Supertechs. I never had exhaust valve troubles though, only intake valves.
Shim under bucket is a variation of the solid lifters. Under sustained high-RPM (Spec Miata races), the OEM lifters with shims sandwiched between the cam lobe and lifter body have been know to fly out. It's not common and keeping an eye on lash and respecting your redline should prevent it. I'd say if you're building an 8K+ grenade, do it. Otherwise . . . .
You could do a BP5A camshaft, but with a turbo, not sure it's worthwhile.
Anyways, I'd do the light doubles and the basic rebuild. Depending upon what the machinist finds with the exhaust valve, you might want to upgrade those too. Anything else . . . meh.
Shim under bucket is a variation of the solid lifters. Under sustained high-RPM (Spec Miata races), the OEM lifters with shims sandwiched between the cam lobe and lifter body have been know to fly out. It's not common and keeping an eye on lash and respecting your redline should prevent it. I'd say if you're building an 8K+ grenade, do it. Otherwise . . . .
You could do a BP5A camshaft, but with a turbo, not sure it's worthwhile.
Anyways, I'd do the light doubles and the basic rebuild. Depending upon what the machinist finds with the exhaust valve, you might want to upgrade those too. Anything else . . . meh.