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Congrats! Check with Len Hoffman. He should be able to fix this and make sure you send BOTH heads (in case there are other cracks) because you don't want to do it twice.
I have been reading and following your "Blown Engine" post. Most excellent, thanks for sharing your journey. I have learned quite a bit from your post, knowledge that all come in handy when I start to reassemble my engine.
I have discovered where some of the damage caused by the errant rear main seal tension spring occurred ...
Oil pump housing Oil pump gear
Crankshaft main bearing thrust washer
Good job disassembling the engine. Good that those bits should be caught by the oil filter. Imagine if those bits got suck into the oil gallery if the filter bypass valve fails...
You're Rockin' it! The bores you showed on the one bank all look good. Is the other side clean (no scoring) as well? Are you planning on doing anything to them? Obviously, new timing/cam chains etc. What about the scoring on the face of the water pump? Can anything be done for that? Looks like that intermix could have been a blessing in a way...
Congrats! Check with Len Hoffman. He should be able to fix this and make sure you send BOTH heads (in case there are other cracks) because you don't want to do it twice.
Just received an email from Len Hoffman. I had shipped him both heads and only the one had a crack. He is going to weld/repair the crack and service both heads.
You're Rockin' it! The bores you showed on the one bank all look good. Is the other side clean (no scoring) as well? Are you planning on doing anything to them? Obviously, new timing/cam chains etc. What about the scoring on the face of the water pump? Can anything be done for that? Looks like that intermix could have been a blessing in a way...
Yes, plan on replacing the wear items. The scoring was on the main oil pump housing. All the cylinders look great except for number five. Light scoring and marks on piston as well.
Yes, plan on replacing the wear items. The scoring was on the main oil pump housing. All the cylinders look great except for number five. Light scoring and marks on piston as well.
How do you plan on addressing these two issues? Surely you're not planning on just putting it back together and hoping for the best?
How do you plan on addressing these two issues? Surely you're not planning on just putting it back together and hoping for the best?
Well... it did cross my mind... briefly!
I’m looking for a good used oil pump housing and assembly. New ones are in the $400-600 range and my thought process is that unless something similar happened to another pump I should be good. As it were the engine had good oil pressure with the existing pump!
I’m looking for a good used oil pump housing and assembly. New ones are in the $400-600 range and my thought process is that unless something similar happened to another pump I should be good. As it were the engine had good oil pressure with the existing pump!
Input encouraged.
I'd offer you one from my parts engine, but it looks worse than yours.
You should be able to find a used front console/oil pump in perfect shape easily. There are many parts available and the Boxster console/oil pump is also compatible.Although there are many different part numbers for the earlyier ones, they have all been superceeded to one part number. Just be sure to inspect it carefully and also get the matching "cover" that goes with the particular version.
Though minor and only on cylinder 5, that issue is still to be dealt with. I’ve looked into Nickies Hartech, steel liners and finally having US Chrome hone and re plate with Nikasil. The last option is intriguing and also one of the lower cost options. If this were a “forever” car I’d go with oversized Nickies.
06-26-2019, 12:00 PM
