4.7 Dropped Valve Seat - YEAR POLL - Page 12 - JeepForum.com
View Poll Results: What year was your dropped valve 4.7?
1999 8 11.59%
2000 10 14.49%
2001 8 11.59%
2002 19 27.54%
2003 3 4.35%
2004 22 31.88%
Multiple Choice Poll. Voters: 69. You may not vote on this poll

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post #166 of 171 Old 05-24-2021, 05:44 AM
cDee63
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I have been doing this since the 80's when I lived in Arizona, it was a common thing there among the car guys as well. We used to go as far as using AC condensers as trans coolers mounted in the back of the truck bed... I have never had an issue with excessive heat at the cowl, the heat dissipates pretty quick once out from under the confines of the hood.


2004 Limited, 4.7 modded slightly, IRO 3" RockLink LA front, adjustable SA rear, Bilsteins, Addco bar, JKS disconnects. Coming attractions include 242hd, IRO SYE and Woods DS right after the new engine/trans..
1974 Ironhead Sportster, total custom
High speed, low drag
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post #167 of 171 Old 05-25-2021, 02:17 PM
mak_v8
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Location: Milan, Italy
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Cooling of the engine bay is an interesting point of discussion.
On one other thread, with @Double E We were discussing about air deflectors at sides of the radiator that force air throught radiator instead directly in the engine bay allowing cooling of the engine.
On 2004 models, air deflectors has been deleted from factory; I wonder if this could be a useful modify for the previous mys...
2004s AC condenser and power steering oil coolers are different from previous mys, this thing probably should be considered.
A friend of mine with a 00 (be strangely has hydro fan) has no radiator deflectors, and his engine temp stays always lower than WJs equipped with them...: could it be a random case?

Grand Cherokee WJ 4.7 V8 HO. m.y. 2002
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post #168 of 171 Old 05-26-2021, 01:57 PM
blueseasons1
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2000 WJ 
 
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Posts: 678
Just what are these air deflectors? I have a 2000 and a 04, 4.7. I don't see any difference on the sides of either radiator. They may be there and I don't recognize them. What am I looking for?
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post #169 of 171 Old 08-31-2021, 12:54 PM
Double E
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mak_v8 and I were discussing those deflectors and I since learned that they had been deleted, so you wont find them on the '04 models.

"We have it totally under control. Itís one person coming in from China. We have it under control. Itís going to be just fine." ~D. Trump, Jan 22, 2020.
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post #170 of 171 Old 09-06-2021, 11:04 AM
livebait
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Location: HUNTSVILLE
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Has anyone done business with Auto Recycle Professionals in Kissimmee, Florida??


Can anyone here vouch for these guys?

These guys are offering me a 4.7 complete engine with 67K miles on it and 90 day guarantee for $1350.

BBB says they have a good rating.

https://autorecyclepro.com/Contact/
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post #171 of 171 Old 10-01-2021, 11:30 AM
leadsled jeep
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I’d expect you’d know if you had any problems with a JY motor in 30 days, maybe less. I used a JY motor in my ES300 with similar warrantee and it’s been 6 yrs now and another 120k miles on her. Wish you the best!

For a WEAK and IGNORANT people, SERF-dom is a Reward, not a Curse. W1CCW
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