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Today we are tearing down an engine that MANY people have been requesting for a long time. A Volvo 5-cylinder! This is the 2.5L B5254T5 out of a 2012 Volvo S60 T5. I don't know miles as I couldn't read the entire vin due to the extreme corrosion on the block. This engine was SIEZED, but was that why it was replaced? if it wasn't, what was the original reason?
The Volvo modular engines have been around for a long time, this one makes 247hp and 266lbft of torque, and was only around for a few years. The design of these engines change throughout the generations but the overall architecture remains the same.
Every week I teardown a new engine that has failed in some way in an attempt to figure out why it failed, what was the initial cause, and what parts survived. Here are a few of my favorites over the years:
8.0L Dodge Ram V10 WORST ONE EVER [ Ссылка ]
Volkwagen 2.5L Inline 5 [ Ссылка ]
560hp BMW M5 V8 Teardown [ Ссылка ]
3.0L Duramax Diesel DESTROYED at 45K miles [ Ссылка ]

Why am I doing this? My name is Eric and I own and run Importapart, a full service auto salvage business. Part of our model includes buying and dismantling blown and core engines. We salvage the good parts and recycle the rest. We don't rebuild engines, merely supply parts to those who do!

00:00 Summary
02:47 Trying, and failing to turn the engine over
04:32 Unbolting The intake manifold
06:22 Looking down the intake ports. ITS BAD
07:41 Pulling the oil filter out and inspecting it
08:28 Dipstick FIGHT
09:40 Removing the coolant and oil fittings from the turbocharger
10:20 Unbolting the turbocharger from the head and inspection
11:25 pulling the harmonic balancer off the engine THE WRONG WAY
12:18 Inspecting the timing belt, no major issues? Or is there?
14:39 Cramming the valve cover bolts out(see: Cam Craps)
16:24 Removing the valve cover, WITH THE CAMS?
17:15 Inspecting the camshafts, buckets, journals and valve cover
20:06 Cracking the headbolts loose. THEY ARE TIGHT
20:56 Lifting the head. OH THE HORROR FE2O3
22:25 First look at the bottom of the cylinder head
24:13 Removing the water pump
26:04 Zipping all of the oil pan bolts out and tapping it off.
28:05 Trying HARD to get the short block to rotate.
31:46 Removing the oil pump
32:08 Unbolting and prying up the bedplate
33:16 Unbolting all 5 rods and pistons
33:43 Lifting the crankshaft out of the block
34:06 Pushing all 5 rods and pistons out of the block
34:58 Complete rotating assembly inspection, Block, Crank, bearings, rods and pistons.
38:38 Breaking down the cylinder head to see the extent of the damage
42:16 Summary


I really hope you enjoyed this teardown, as always I love all of the comments, feedback and even the criticism. Catch you on the next one!

-Eric

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