Cost to Repair a Honda V6 Engine that Jumps Time

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Background: https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/5098716/lapping-valves-vs-machining

I recently repaired a 2006 Accord V6 with 149K that jumped time while idling. This is an interference engine which means the valves will collide with the pistons if the timing belt breaks (or if the engine goes out of time for another reason). No piston damage occurred.

Just wanted to share how much it can cost to repair one if this situation happens.

The book time to remove both cylinder heads is 9 hours.

Code
Brand Quantity Part Number Description List Price Total

Genuine Honda 2 12251-RCA-A01 Cylinder Head Gasket 56.42 112.84

12 12210-PZ1-004 Valve Stem Seal - Intake 2.15 25.80

12 12211-PZ1-004 Valve Stem Seal - Exhaust 2.15 25.80

5 14721-P8E-A00 Valve, Exhaust 29.13 145.65

4 14711-P8E-A00 Valve, Intake 18.88 75.52

2 91213-RKG-003 Camshaft Oil Seal 8.73 17.46

1 91212-5MR-A01 Crankshaft Oil Seal 9.12 9.12

6 91301-PLC-000 Fuel Injector O-Ring (upper) 2.77 16.62

6 91302-PNA-003 Fuel Injector O-Ring (lower) 2.15 12.90

1 91301-P2F-A01 Fuel Rail O-Ring 2.82 2.82

1 17065-RCA-A01 Lower Intake Manifold Gasket - Rear 19.7 19.70

1 17055-RCA-A01 Lower Intake Manifold Gasket - Front 19.7 19.70

1 18715-PB2-000 EGR Valve Gasket 10.37 10.37

2 91314-PH7-003 Coolant Pipe O-Ring 3.1 6.20

1 19411-P8A-A03 Water Passage Gasket, Front 5.3 5.30

1 19412-P8A-A02 Water Passage Gasket, Rear 2.6 2.60

1 19421-RCA-A60 Hose A, Warmer (ATF) - Split during removal 3.4 3.40

1 19501-RCA-A00 Upper Radiator Hose 21.95 21.95

1 19502-RCA-A00 Lower Radiator Hose 28.73 28.73

4 19511-PH7-003 Radiator Hose Clamp 7.95 31.80

2 18115-RCA-A01 Gasket, Exhaust Chamber 6.17 12.34

2 12341-RCA-A01 Valve Cover Gasket 10.5 21.00

1 90704-RCA-A00 Crankshaft Sprocket Key 5.95 5.95

1 15400-PLM-A02 Oil Filter 7.3 7.30

1 19301-P8E-A10 Thermostat Assembly 64.33 64.33

Fel-Pro 2 ES71329-1 Cylinder Head Bolt Set 23.79 47.58

1 MS96410 Upper Intake Manifold Gasket Set 19.49 19.49

CCI MFG 2 128524/168 Super Extended Life Coolant - Blue 11.66 23.32

Mobil 1 1 Mobil 1 5W-20 Full Synthetic, 5-qt. 22.88 22.88

NGK 6 6994 IZFR6K11 Laser Iridium Spark Plug 8.20 49.20

Aisin 1 TKH002 Timing Belt Kit w/WP and Hyd Tensioner 178.78 178.78

Bando 1 6PK2135 Serpentine Drive Belt 20.55 20.55



Subtotal 1067.00

Tax 93.36

Machine Shop Charge (3-angle cut valve job and resurface heads) 540.00

Grand Total 1700.36


In comparison, a used engine with 67k miles was $1200. The cost of the necessary gaskets, a new timing belt kit, hoses, coolant, oil, etc is about $550. So in this situation the parts cost was comparable but the labor time to swap an engine would have been slightly higher. We decided to repair the engine since the engine was working fine before this happened, but it may not always make the most financial sense.

Point is, it is possible to repair a Honda V6 engine if it jumps time, but try to avoid the situation if you can.
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Photos of the job and of the bent valves can be found below.

IMG_5445.jpg


IMG_5476.jpg


IMG_5469.jpg


IMG_5470.jpg
 
Originally Posted by ctechbob
Any idea on the cause? Broken belt or deferred maintenance?

It was user error.
grin.gif


During an oil leak diagnosis, the engine was accidentally allowed to run without the crank pulley being installed. Clearly this was a terrible idea since the crank sprocket is keyed to the crankshaft.
 
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have $$$$ echeaper than a malfunction of any kind on a 1.8T 20 valve earlier VW or Audi! anything that malfunctions in the timing system can ffects. possibly a worn belt could have jumped a tooth or two, even chain driven systems can have issues as they are tensioned with a tensioner. girlfriends 99 low mile malibu needed a water pump that was in the block, removing everything to install included compressing the tensioner plunger, it did not fully release after install + enging idled poorly needing a replacement tensioner to cure. likely not interference fit, but not sure. many owners are blind to the needs + issues of modern engines until the poo hits the fan $$$$, pay some now ot trade often or pay more later!!!
 
Originally Posted by slacktide_bitog
I HATE timing belts, especially on interference engines
mad.gif


But I like the pics
smile.gif



I read Honda and was thinking a stretched timing chain from oil neglect or wear. That happens too.
 
Do you ever have problems with oil burning after removing the heads.

I have not had to do this sort of repair in over 40 years, it was a problem then.

It happens when the friction lock between the head and block gets broken and due to core shifts the bore is no longer round. With seated rings and crosshatch, the engine can not reseal.

Rod
 
Originally Posted by slacktide_bitog
I HATE timing belts, especially on interference engines
mad.gif


But I like the pics
smile.gif



I'll gladly take the timing belt on my Pilot over the troublesome timing chains I had on my Traverse. At least the belt is designed to be replaced without pulling the engine first. The cost of replacing the chains on the Traverse is typically around $3000.
 
IMHO not worth it. One of my family members had same year accord. Had a few issues with A/C pumps, then trans started slipping despite frequent fluid changes. K24 cars were ok..
 
Interesting. I would have guessed higher for the bill. Not that I'd want to foot the bill either way!
 
I think I would have chosen the used engine . But different strokes for different folks . Would also depend on how much faith I had in the mechanic vs. how much faith I had in the salvage yard .

I am too old and stiff to do it myself & lack the place to do it & some of the tooling .
 
If it just jumped time, why don't just put in a new timing belt? If that engine got damaged, you'd know it right away. Sounds like it was still running OK, just jumping time meaning belt lost a tooth or stretched or something.
 
Originally Posted by madRiver
Originally Posted by slacktide_bitog
I HATE timing belts, especially on interference engines
mad.gif


But I like the pics
smile.gif



I read Honda and was thinking a stretched timing chain from oil neglect or wear. That happens too.


Timing belts and chains do not stretch they only wear.
 
I can see that both wear . Belts might stretch , a little . Beyond the ability of the tension-er to compensate ? No idea .
 
Originally Posted by Trav
Originally Posted by madRiver
Originally Posted by slacktide_bitog
I HATE timing belts, especially on interference engines
mad.gif


But I like the pics
smile.gif



I read Honda and was thinking a stretched timing chain from oil neglect or wear. That happens too.


Timing belts and chains do not stretch they only wear.


What does "stretch" mean?

I've seen others make this distinction, but I think it's unhelpful.

If you want to get technical enough, everything stretches...
 
Originally Posted by The Critic
Originally Posted by ctechbob
Any idea on the cause? Broken belt or deferred maintenance?

It was user error.
grin.gif


During an oil leak diagnosis, the engine was accidentally allowed to run without the crank pulley being installed. Clearly this was a terrible idea since the crank sprocket is keyed to the crankshaft.

33.gif
 
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