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Old 12-21-2008, 03:42 AM
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Any reccommendations for a machine shop in the Denver, Colorado area? I'm about to buy a '00 Discovery with a slipped liner. I'm looking for a shop that will re-sleeve the slipped cylinder and pin it, and pin the other 7 sleeves while they are at it.

Thanks!
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Old 12-21-2008, 04:37 AM
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did you try asking this question on www.solihullsociety.org
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Old 12-23-2008, 05:59 PM
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This is the first I've heard of them... I'll post there. Thanks for the tip!
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Old 12-23-2008, 06:34 PM
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Havanna Machine did the motor in my Corvette and my Belair and Painters Grinding did the motor in my Bug but idk if either of them have experience with Rovers...
You may want to call and talk to Jeff at JC Rover in Engelwood or Rob at MIT in Evergreen
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Old 12-25-2008, 12:02 AM
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Thanks for the leads... the heater core in the D2 is blocked... I'm going to flush it and the entire cooling system once it gets a little warmer... but there are definately combustion gases getting into the coolant. If I'm lucky, it is just headgaskets. But the PO had the headgaskets replaced in Feb 07, so I'm preparing for a slipped liner.
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Old 12-25-2008, 01:27 AM
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I would check with Jeff @ JC Rover His # is 720/227-9118

he does an awsome job plus he's a member of Solihull

Or check with Rob @ MIT # 303/679-1610

He is a wealth of info and also a member of Solihull
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Last edited by RoverInTheRockies; 12-25-2008 at 01:29 AM.
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Old 12-26-2008, 12:47 AM
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x2 on both Jeff and Rob. I'd check with one of them.

If you're looking for just a good engine machine shop, I'd try these guys. http://westernenginesupply.com/
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Old 12-28-2008, 08:45 AM
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x3 Jeff has always been a big help to me whenever I need it.
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Old 12-28-2008, 11:45 PM
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Thanks for the responses! I flushed out the cooling system and confirmed the source of the heater core blockage today-- it is an airlock caused by combustion gasses. I'll give Jeff et al. a call tomorrow. I'm a few months out from yanking out the engine due to other projects, but I will post pics of the engine build once I get going on it.
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Last edited by ClassicRover21; 12-28-2008 at 11:48 PM.
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Old 12-29-2008, 11:23 AM
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x4 on above
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Old 12-29-2008, 05:24 PM
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I spoke with Jeff, who is a great guy. He reccommended dropping in a new 4.6 short block, which apparently uses new and improved casting methods... problem is those run $4500 or so. His shop doesn't do machine work.

So I called Western Engine Supply (303-286-1903), and they do install top hat liners (they call them "flanged liners"), at $170 per cylinder. They said I can get by with re-sleeving only the dropped liners. I'll have them pin the rest.

If I had more cash, I'd put in the new 4.6 short block Jeff suggested. My time is the more plentiful asset right now, so I'll have Western fix up my block, slap on new gaskets, head bolts, and water pump, and keep my fingers crossed. I'll report back on my progress in a new thread...
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Old 12-29-2008, 08:22 PM
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Glad you got to talk to Jeff... And when the $ presents itself I will be doing the 4.6 upgrade... my 4.0 is just so sluggish comparitvly
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Old 12-29-2008, 10:26 PM
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So what are you going to pay for it? IMO, if I were to pay even 30% of the 4.6 install on a repair, I'd just go for the 4.6.

Jeff is a great guy. I have had to use Pike's Peak though in a pinch (water pump went while in Co Springs), they are good as well.
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Old 12-29-2008, 11:37 PM
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Quote:
Originally Posted by bri
So what are you going to pay for it? IMO, if I were to pay even 30% of the 4.6 install on a repair, I'd just go for the 4.6.

Jeff is a great guy. I have had to use Pike's Peak though in a pinch (water pump went while in Co Springs), they are good as well.
I've been doing a lot of number crunching on this... if I'm lucky, I'm out $170 to resleeve a cylinder, machining costs of $22 per head and $45 for the block deck, $200 for a gasket kit/headbolts, $75 for a new water pump, plus new thermostat, coolant, oil and filter. So about $600 in parts and machine work, and a lot of (my) labor.

Of course, I've heard conflicting stories about the effectiveness of top hat liners alone to stop coolant leaks--stories about lots of tiny cracks that allow combustion gasses to pressurize the coolant even after re-sleeving. I'll get Western's take on this when I bring the block in... if they have doubts I'll hunt for a used 4.0 with a good block.

I'm willing to invest $600 and a month of weekends on my little experiment repairing a leaky cylinder... but if I can get a good used block cheap, I'm going to jump at that first.

So, if anyone local with a decent 4.0 is contemplating swapping in a 4.6, let me know, because I may want to buy your old engine!
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Last edited by ClassicRover21; 12-29-2008 at 11:39 PM. Reason: addition
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  #15  
Old 12-30-2008, 02:00 AM
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That math makes sense, especially if you are doing the work and can live without the vehicle for a month. I kind of rolled the dice on a similar fix to my 4.2 for about 800 and it now has about 6k more miles on it and I have not had to drop the $6k for a 4.6.
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