fiatmonkey
Tim Hoover
I have a spare 1500 modded engine that I finally starting tearing down. I discovered some goodies like the IAP autocross cam, big valves (haven't measured yet) and ross racing pistons. DCNF's and sprint mani are already off.
Interesting the guy I had gotten this off a couple years ago said "It sure gets a lot of blow-bye - so much I fed it into a spare expansion tank". I was puzzled by this but I figured its possible if the compression was high enough and a catch tank is not a bad idea but I don't think using a perfectly good SS expansion tank was the right solution
I had tried starting it and it never ran well and compression tests were all over the place so I figured bad valve or 2, head gasket and since I was planning on tearing it down at some point I would soon find out.
When I popped the head bolts out, the head lifted right off. I mean, not even a slight bit of trouble. I was a little shocked and expected some effort.
vavles and pistons look ok however I found this:
on the block and this on the matching location on the head:
This was located near the piston (#1) that reveled the weakest compression.
So what I believe happened is the PO torqued down the head across the dowel, squashed it down and left a nice little gap for compression and everything else to escape.
I will take the block and head to a shop. I am not sure what they can do for the head; I haven't measured it yet so not sure if it needs to be decked, how much space there is to take off.
-Tim
Interesting the guy I had gotten this off a couple years ago said "It sure gets a lot of blow-bye - so much I fed it into a spare expansion tank". I was puzzled by this but I figured its possible if the compression was high enough and a catch tank is not a bad idea but I don't think using a perfectly good SS expansion tank was the right solution
I had tried starting it and it never ran well and compression tests were all over the place so I figured bad valve or 2, head gasket and since I was planning on tearing it down at some point I would soon find out.
When I popped the head bolts out, the head lifted right off. I mean, not even a slight bit of trouble. I was a little shocked and expected some effort.
vavles and pistons look ok however I found this:
on the block and this on the matching location on the head:
This was located near the piston (#1) that reveled the weakest compression.
So what I believe happened is the PO torqued down the head across the dowel, squashed it down and left a nice little gap for compression and everything else to escape.
I will take the block and head to a shop. I am not sure what they can do for the head; I haven't measured it yet so not sure if it needs to be decked, how much space there is to take off.
-Tim
