what does a top end actually include?
07-22-2009, 08:45 AM
#1
what does a top end actually include?
hi guys
Pls forgive my ignorance , im looking at a 964 with about 95k miles.
Is the below considered a top end or just the valve/head adjustment.
A couple of years back it had some engine work. the receipt reads:
"R&R Engine
Disassemble to replace heads, studs, replace head gasket, piston rings, clutch disc, throw out bearing, guide sleeve, tune up & valve adjustment, leak test all cyl 94%, replace hose for clutch slave, cylinder & surge fluids."
Pls forgive my ignorance , im looking at a 964 with about 95k miles.
Is the below considered a top end or just the valve/head adjustment.
A couple of years back it had some engine work. the receipt reads:
"R&R Engine
Disassemble to replace heads, studs, replace head gasket, piston rings, clutch disc, throw out bearing, guide sleeve, tune up & valve adjustment, leak test all cyl 94%, replace hose for clutch slave, cylinder & surge fluids."
07-22-2009, 09:54 AM
#2
Nordschleife Master
A top end rebuild requires removal of the engine, dissassembly of the engine down to the pistons and cylinders, reconditioning of the cylinder heads including replacement of valve guides, valve springs (depending on the shop), valve job, assembly, adjustment of the valves, repair of any leaking that is found, reinstall the engine, and a valve adjustment after 3-500 miles (depending on the shop).
It does not generally include disassembly of the pistons and cylinders unless a) there are broken head studs requiring replacement, or b) for some reason the shop thinks it needs new piston rings.
It does not generally include disassembly of the pistons and cylinders unless a) there are broken head studs requiring replacement, or b) for some reason the shop thinks it needs new piston rings.
07-22-2009, 12:30 PM
#3
Nordschleife Master
"Is the below considered a top end or just the valve/head adjustment."
The list of items done shows that more than just a top end job was done .
They did the rings , the rings are not part of a top end job ,
they put in "clutch disc, throw out bearing, guide sleeve"
thats not part of a top end job , thats extra .
The list of items done shows that more than just a top end job was done .
They did the rings , the rings are not part of a top end job ,
they put in "clutch disc, throw out bearing, guide sleeve"
thats not part of a top end job , thats extra .
07-22-2009, 02:16 PM
#4
what would prompt a shop to do the additional work as described here?
This was done at 60k miles (about 7 yrs ago) and the car now has 95k.
I assume i should feel good that all this was done ?? anything else i should ask for before i do the ppi?
This was done at 60k miles (about 7 yrs ago) and the car now has 95k.
I assume i should feel good that all this was done ?? anything else i should ask for before i do the ppi?
07-22-2009, 02:56 PM
#5
Nordschleife Master
The old rings might have been fine and they replaced them just because they were in there . They might have had one broken ring and replaced them all because of that .
You have a newer set of rings because they replaced them , thats a good thing .
They might have done the clutch because they had the motor out of the car and did it because it was easy to do when the motor was already out .
If they had not done it while the motor was out , maybe just a little bit down the road the clutch goes **** up and they have to pull the motor out again to get at the clutch .
Or maybe the clutch was not so hot before the car went into the shop .
Anyway the car has a newer clutch in it and thats a good thing .
Clutches don't last forever .
When I bought my car , it had just had the same repairs as the one your looking at has had .
07-22-2009, 04:09 PM
#6
My car, at 68k miles has just had exactly the same work completed. The rings and clutch work, as Indy mentions, were done because we were already in there and it makes some financial sense.... just in case...
