General Discussion Area > Corvette Related Chat
Jethro's Engine Woe's....
Jethro:
--- Quote from: Admin link=topic=9199.msg1045943005#msg1045943005 ---Jethro, check those valve guides on those Dart heads. I had a brand new set, cast iron, fitted to Priscilla when we did the motor and they all wore out real quick and I ended up burning oil. Found out that there was, back then, a common problem with Dart valve guides, too soft a material used. Ended up putting in K liners and not a problem since.
--- End quote ---
Hmmm but how long ago was that camo? same could be said bout those probe pistons I got told they had issues 3 years back with Q.C. and the variance was anywhere between +_ .001 - +_ 004 of a inch...?
bfit:
--- Quote from: Admin link=topic=9199.msg1045943005#msg1045943005 ---Jethro, check those valve guides on those Dart heads. I had a brand new set, cast iron, fitted to Priscilla when we did the motor and they all wore out real quick and I ended up burning oil. Found out that there was, back then, a common problem with Dart valve guides, too soft a material used. Ended up putting in K liners and not a problem since.
--- End quote ---
Jethro
If you got bare heads
I would change out the guides
For a good quality Australian guides.
Cheap insurance.
We import heads for cat out of the US it's standard practice for us we remove the guides and replace them.
Just treat the heads as cores
You will get a better result long term
Bfit
Camo:
I agree. Some of the stuff out of the US has crap guides, well they were back then. To answer your question Jethro, about 6 years ago we did Priscilla, 2006.
Jethro:
Camo / Rob,
Check with my mate the bloke who's rebuilding motor and when I asked him bout the Dart guides he immediately came back with "SHYTE" has already organised replacements? :bannana:
bfit:
Jethro I would not expect anything less for a reputable engine builder.
Oven if it only came down to knowing the fit of the guide in the head
There is to much riding on the result to just accept that some one else in another country has done it correctly
The people putting these thngs together will not be the one you go back to if it all goes wrong
I know head rebuilders who would replace the guides even if you would dont ask them to
As in the people you are using
Their already doing it for your benefit and their piece of mind.
Bfit
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