OM603 #22 cylinder head (SOLD) - Mercedes-Benz Forum

 
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post #1 of 5 (permalink) Old 07-29-2010, 03:36 PM Thread Starter
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OM603 #22 cylinder head (SOLD)

I'm clearing out some of my shop stock this Summer. Here's a genuine Mercedes Benz replacement #22 cylinder head for the OM603 turbodiesel engines, as found in:

--'86 - '87 300SDL
--'87 300D/TD
--'90 - '95 350SDL/300SD

The bare head has a current MSRP of $2250 (P/N = 603-010-96-20)
I bought this brand new bare head in 2005 to replace the cracked version on my '87 300TD. I did some mild port-matching and hand-lapped the valves/seats. The following parts were then installed on the head:

-- new intake valves @ ~$9 per each x 6 = $54
-- new exhaust valves @ ~$22 per each x 6 = $132
-- new valve stem seals @ $15
-- new lifters @ ~$18 per each x 12 = $216

To replace this cylinder head today, the current total = $~2667 + shipping/tax

I put approximately 30k on the head, at which point I decided to pull the perfect running engine and install a newer OM606 from a '99 E300D turbo. The head has the older style vertical pre-chambers installed. I'm including the cam bearing caps and bolts.

Local South Puget Sound pickup is certainly preferred, but if you want it shipped, please be prepared to pay for the full cost of packing, insuring and shipping from area code 98501. Serious inquiries please -- $1300 firm
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Last edited by Zeitgeist; 09-17-2010 at 11:18 AM.
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post #2 of 5 (permalink) Old 08-07-2010, 10:47 AM Thread Starter
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I'll add a few more items to the list of OM603 items for sale. As mentioned above, I pulled the perfectly decent running engine from my '87 300TD @ 234k, so the short block is available. It's the block, crank, rods & pistons, just as I pulled it from the car. I can throw in the timing cover if desired.

This would be perfect to replace the notorious "rod-bender" 3.5L engines as found in the '90-'95 350SDL/300SD. There's still cross-hatching visible on the cyl walls and very little top ridge. Personally, I'd do rings and rod bearings and slap this in another car if one were readily available in my area. Since one isn't currently available, I want it gone -- $275 Local pick up highly preferable.

I also have the upgraded Pierburg vacuum pump and injection timer. The VP has about 30k on it, and the timer is original. The timer ramp is in good condition with minimal visible wear, which is why I'm offering it along with the VP. These combos have been failing more and more as the cars are aging past their second decade. I suspect lots of mechanics are replacing the failed VPs and not adequately inspecting the timing ramps which may also be damaged, leading to premature failure of the replacement VP. I think the replacement price for the VP is now around $300 and the injection timer is ~$200--that's pricey stuff, and considering that a grenading VP can and frequently does take out the engine; I'm offering cheap insurance. -- $140 for both.
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post #3 of 5 (permalink) Old 08-29-2010, 11:53 AM
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Is this OM603 #22 Cylinder head still available for sell? Is $1,300 all included as you talking about? Since my 87' 300TD with head #14, I saw the rad tank has air bubble from engine. How can I know the head cracked or head gasket problem?
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post #4 of 5 (permalink) Old 08-29-2010, 01:26 PM Thread Starter
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Originally Posted by allido2010 View Post
Is this OM603 #22 Cylinder head still available for sell? Is $1,300 all included as you talking about? Since my 87' 300TD with head #14, I saw the rad tank has air bubble from engine. How can I know the head cracked or head gasket problem?
The head is still available. It's a complete head, with valves, pre-chambers, and lifters, and I could throw in the cam and gear if you want them.

The cracked head syndrome is difficult to diagnose, but the typical sign of failure is a hard upper radiator hose after sitting overnight--a normally operating engine won't hold pressure for that long. This test requires that the rest of the cooling system is tight, though if it weren't you'd probably be losing coolant over time. The #14 heads apparently develop tiny fissures which allow combustion gases to enter the cooling system, but until things get really dire, they don't usually allow coolant to enter the combustion chamber unless the engine is really overheated. It's a frustrating problem, but these later design heads are the only fix I'm aware of at this moment.
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post #5 of 5 (permalink) Old 08-29-2010, 09:46 PM
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Thanks for your reply. I will check the problem again during this week. Hopefully is the gasket problem not the head. So terrible if the head cracked really!!
How heavy for this shipment if I really need to buy? Since I'm living in Canada, can you ship buy Greyhound then I can pick it up in Buffalo, USA?
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