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It may have been rebuilt before. It's probably bore number if rotating assembly was balanced to make sure they stayed on the right journals. (weight added/removed from rods) Check to see if weight added anywhere. it could also be a quickie ring change was done & someone wanted to correspond each piston w/it's cap & not regrind crank.
What else can I help you with?
Where is the piston ring on a Ford Escort?
On the pistons, in the block. If they are bad, it's time for an engine rebuild.
Do you have to change all pistons if only 1 is bad?
I HAVE NEVER CHANGED PISTONS IN AN AUDI, BUT IN AMERICAN CARS YES AND WE HAVE HAD PLENTY OF BAD PISTONS AND WE DIDN'T ALWAYS CHANGE ALL OF THEM, ONLY THE ONES THAT NEEDED CHANGING. ANOTHER FACTOR IS BASED ON THE MILEAGE ON THAT (ENGINE). MY BEST GUESS IS ,IF THE ENGINE HAS LESS THAN 100K MILES CHANGE ONLY THE ONES THAT NEED CHANGING. UNLESS ITS MORE THAN HALF OF THE AMOUNT OF PISTONS IN THE ENGINE, CHANGE ONLY THE BAD ONES, IF YOU ARE DOING IT YOURSELF. A GARAGE MAY WANT TO REBUILD THE WHOLE ENGINE, MAINLY FOR WARRENTY PURPOSES. GOOD LUCK. I HOPE THIS HELP SOME.
How do you change pistons on a Mitsubishi gto 3000?
Call a mechanic. This is not an "at home" type of repair. To replace pistons, you must tear the entire engine down, and replace all gaskets and bearings. I assume you are thinking of lower compression pistons for a turbo build up. Don't bother. Buy a complete engine with the turbo and duct work from a wreck, if available. You could spend more trying to rebuild yours.
How do you rebuild an 89 Honda Prelude engine?
1: remove the engine via "cherry picker" $120 2: store engine on engine stand for work, $60 3: eBay engine rebuild kit, range from $100~ ( basic for seals ) to over $600 with pistons, pumps, crankshaft etc.
Can you change the crankshaft without removing the pistons in a Chevy 350 engine?
yes when the engine is out and upside down
Does rebuilding an engine increase performance?
Rebuilding an engine can potentially increase performance, especially if the rebuild includes upgrades like higher compression pistons, performance camshafts, or improved intake and exhaust systems. A rebuild also allows for the replacement of worn-out components, improving efficiency and reliability. However, the overall performance gain depends on the quality of the rebuild, the parts used, and the tuning of the engine afterward. Without modifications, a rebuild may simply restore the engine to its original performance levels rather than enhance them.
How do you change the rings on the pistons?
The pistons and connecting rods have to be disconnected from the crankshaft, then removed from the top of the engine block. The oil pan and heads will have to be removed to gain access.
What is major overhauling?
It is a complete rebuild. Replacing all bearings, rings, gaskets, inspecting heads, and replacing water pump, and any other parts necessary.
How many pistons used in v8 hemi engine?
There are ( 8 PISTONS ) in a V8 engine
How many pistons does a roatary engine have?
Rotary engines do not have pistons.
How do you rebuild a 150cc gy6 engine?
how do you rebuild a Roketta 150cc GY6 engine?
How do you change a rod in a 1994 Toyota Camry?
Ask this question again as "How do you rebuild the engine in a 1994 Camry with _____ engine?" replacing _____ with the specific engine in your car.
