-
We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.
YACT: How do you revive an engine
- Thread starter GasX
- Start date
CrackRabbit
Lifer
hmmm... if you wanted to do the whole route it would invlove removing, checking tolerences and replacing anything out of spec. But to do that right you generaly have to remove the motor from the car and take it apart.
A true mechanic could probably give you a better idea of whats involved
.
CrackRabbit
A true mechanic could probably give you a better idea of whats involved
.
CrackRabbit
tear it down, rebuilt it with new bearings, gaskets, and seals. Check all the tolerances, maybe replace some stuff that looks worn, then put it back together (making sure you torque everything correctly). Then change your plugs+wires, bleed the brakes, flush the cooling system, change the oil, and see how she runs.
No reason for a completely new head. Just have to overhaul the valvetrain. But maybe thats what you mean.
You basically check every friction surface within the engine for wear, and remachine/replace as necessary.
Cylinders are overbored, new pistons/rings are fitted. Valves and valve seats are refinished and new valve guides installed.
New main bearings. New connecting rods/bearings. Crankshaft is checked for excessive wear. Cam bearings replaced, cam checked for wear. New seals, gaskets, etc...
thedarkwolf
Diamond Member
I'd just give it a tune up if it hasn't had one in a while. Just about any engine made in the last 20 years isn't that bad off with 200k if its had even the slightest maintenance over the years. If its not burning a quart of oil every 100 miles it doesn't need rebuilt 🙂.
Engine is stripped down paying close attention to wear patterns, head and block are degreased and baked, crankshaft is ground under size and micro polished, cylinder head receives new camshaft and lifters, new rocker arms, new valve guides, new valves and springs, seats are ground and valve stem height is set, gasket surface is decked.
Block is over bored and honed, crankshaft centerline is checked and bored and honed if necessary, deck height is checked and machined if necessary, oil galleys are cl;eaned and flushed out, new freeze out plugs are installed, new caps are installed in the oil galleys.
Connecting rods are cut on the big end and honed back to size, they are checked for twist and offset then balanced to within 1 gram, pistons are balanced to 1 gram.
New main bearings are installed and bearing clearances checked, crank is installed nd main bearing caps are torqued, con rod bearing clearances checked, pistons are installed on their respective con rods.
Piston rings are file fitted to their respective cylinder bores, rings/pistons and con rods are installed, con rod nuts/bolts torqued to spec, assembly is rotated to check for binding.
New oil pump is installed, oil pan is installed (all new gaskets throughout the engine), engine is turned upright on engine stand, cylinder head(s) are installed and torqued to specs, new timing belt with new tensioner is installed, engine is primed with oil, engine is turned over by hand to check for binding, valves clearance is set, valve cover is installed.
This is only a very basic explanation 😉
By the way, it is called engine rebuilding.
Block is over bored and honed, crankshaft centerline is checked and bored and honed if necessary, deck height is checked and machined if necessary, oil galleys are cl;eaned and flushed out, new freeze out plugs are installed, new caps are installed in the oil galleys.
Connecting rods are cut on the big end and honed back to size, they are checked for twist and offset then balanced to within 1 gram, pistons are balanced to 1 gram.
New main bearings are installed and bearing clearances checked, crank is installed nd main bearing caps are torqued, con rod bearing clearances checked, pistons are installed on their respective con rods.
Piston rings are file fitted to their respective cylinder bores, rings/pistons and con rods are installed, con rod nuts/bolts torqued to spec, assembly is rotated to check for binding.
New oil pump is installed, oil pan is installed (all new gaskets throughout the engine), engine is turned upright on engine stand, cylinder head(s) are installed and torqued to specs, new timing belt with new tensioner is installed, engine is primed with oil, engine is turned over by hand to check for binding, valves clearance is set, valve cover is installed.
This is only a very basic explanation 😉
By the way, it is called engine rebuilding.
AMCRambler
Diamond Member
Well since your Contour has a 6 cyli, I'm curious. Do you have another car your looking to do this on?
A typical Honda engine requires two days if the machine shop has all the required machine tools.
Most of this time is hot tanking/baking the parts, actual assembly requires about 4 hours of work for an experienced assembler.
Most of this time is hot tanking/baking the parts, actual assembly requires about 4 hours of work for an experienced assembler.
GasX
Lifer
Well, I have gotten bitten by the mod/power bug. Modifying my engine would either involve getting a $5000 turbo kit or doing a 3.0L engine swap to see any big gains in power. From a cost perspective, I was thinking it might be feasible and enjoyable to buy an old high mile civic and either swap in a 200HP H22 motor or rebuild the stock engine and add a turbo. This path has become my current focus of interest as I think the selection of components alone would bring me a lot of enjoyment.
AMCRambler
Diamond Member
Ahh I see. Yeah, I got shut down by a Civic hatchback in my Contour a couple weeks ago. I think he did the same thing since the stock Civic hatchbacks only push around 110hp. Prolly dropped an Si motor in it or something. BAH! It still sounded like crap with it's fart can muffler though. Gotta love that 6 cylinder growl.
TRENDING THREADS
-
Discussion Zen 5 Speculation (EPYC Turin and Strix Point/Granite Ridge - Ryzen 9000)- Started by DisEnchantment
- Replies: 25K
-
Discussion Intel Meteor, Arrow, Lunar & Panther Lakes + WCL Discussion Threads
- Started by Tigerick
- Replies: 25K
-
Discussion Intel current and future Lakes & Rapids thread- Started by TheF34RChannel
- Replies: 24K
-
-
