Tune-up your 2.5L !

In today's video, we do a quick tune-up to keep the squirrels happy in the old 2.5. Join along and maybe learn a thing or two.
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[@banana-breakfast]

Dang $500 for this YJ was such a good deal!

[@ManleyMachines]

Honestly it was probably one of the best deals I've ever found. We put a motor in it since that time, and still the Jeep owes me nothing. We probably didn't even have to change the other engine, but it was from a '97 and had unknown history. I got a replacement from Titan engines for under two grand and it just seemed like it was time.

[@blownaway4371]

You CANT change physics! NGK copper power are probably the best plugs I've ever used.

[@weskarcher483]

I tuned up my 95 YJ and it still ran like crap. 😂 I only use my Jeep YJ to pick up bags of concrete for projects around the house. Sometimes i move the boat about 10 feet or so. Other than that it's like having a gas powered golf cart. 😄😄😄

[@ManleyMachines]

I'll agree that the 4-cylinder Jeeps can be very much like a glorified golf cart. I put a brand new engine in that Jeep just a few weeks ago and it still runs like crap. Replaced every sensor, I think it's just inherent to the four cylinder.

[@teop7887]

Still running my '97 2.5l, love it! Mods i did to run 31" tires with no lift and original 3 speed auto: Afe dry filter intake 4.0 throttle body Tb spacer, bored to match 4.0 tb Borla header Magnaflow muffler Griffin radiator High output water pump Flex a lite electric fan Medium performance cam shaft and rollers upgrade Accel ignition, wires, and iridium sparkplugs NO tuning chip Billstein shocks Original coils Old man Emu steering stabilizer Running on 31" Pirelli Scorpion a/t and Jeep 15x8 aluminum wheels

[@williamthompson969]

That motor is not gonna make more power no matter what you do. That old odb1 emc is the killer. Gears gears

[@ManleyMachines]

Don't hate on the terrible 2.5L. I can still dream...LOL. Honestly, this motor may not be powerful, but it certainly is tough. I've thrashed it off-road a few times in an attempt to kill it so I'm forced to upgrade. It still lives, timing chain slap and all...

[@troygallipoli3638]

@@ManleyMachines what is timing chain slap?

[@williameltringham7559]

Just picked one of these up put a remanded engine in it I'm 57 and this is the first 4cyl I have ever owned very slow. I collect and build mustangs dam what a difference

[@ManleyMachines]

My other vehicles are a Fox Mustang and a Charger SRT... This thing is painfully slow, but still enjoyable with the top and doors off. You just can't beat that feeling

[@krod2162]

I have A93YJ 2.5 l.And it makes the same exact clacking sound Like a minute after I started up cold It goes away after about a few minutes of warm up.I tried listening with a stethoscope and couldn't really find where it was but it sounds like it's underneath the valve cover Can anyone tell me what it might b?It's probably really common on these jeeps.

[@ManleyMachines]

Timing chain slap from what Ive been told. We changed the motor since this video, so I cannot confirm

[@clwilli]

What was the big screen display to the left of the steering wheel?

[@ManleyMachines]

Garmin GPS, nothing cool. Thrift store find for $10, it's actually pretty good.

[@jeepersdelight]

Jason from Maryland here. Yes 2.5, no not the AMC version. That has MPFI, AMC did not. That's the ChryCo 2.5 My 86 AMC XJ has the AMC 2.5

[@ManleyMachines]

Thanks for watching! I've done a lot of research on the history of the 2.5. Take a look- en.m.wikipedia.org/wiki/AMC_straight-4_engine

[@jeepersdelight]

@@ManleyMachines Great! Let me know if you need help with anything XJ/YJ/ZJ/WJ. I collect XJs. 84 Carb 2.5 all original Chief 4x4 85 Carb 2.5 all original Pioneer 4x4 86 EFI 2.5 all Original Pioneer 88 Base Rock Crawler on 38s 88 Renix 4.0 all original Pioneer 4x4 89 Renix 4.0 Wagoneer Limited 4x4 04 WJ Laredo on 33s 4:88 Tru/trac'd Overlanding rig. Working on an picking up a 96 XJ Country all original 4x4. My profession is Auto parts Director at a Restoration facility outside if the DC area. I have Jeep connections across the country, happy to help! ..not to mention family and friends that have their XJs and MJs as well!! I frequent the PA Jeep's show every year, my friends always take home best Cherokee, Comanche etc.

[@ManleyMachines]

@@jeepersdelight keep an eye on the channel. We have a 90 Comanche project that starts in a few weeks. Already converted 2wd to 4wd with an AX15, we've got some work to do on the Renix 4.0

[@jeepersdelight]

@@ManleyMachines Will do! Still have that 2wd from axle beam?

[@onlyoneromeo]

Does putting the 4.0 throttle body give same results as a throttle body spacer?

[@ManleyMachines]

No, the 4.0 throttle body is a larger throttle body. While I don't think you get any more power, you do get a lot more throttle response with the 4 liter throttle body. I can tell you first-hand that the throttle body spacer didn't do anything. These four cylinders are very low on power to begin with, so increasing drivability is more important. The 4.0 throttle bodies are dime-a-dozen at any local junkyard, give it a shot.

[@krod2162]

I have the same Jeep don't try to add power to the engine you can't do it but lightening the Jeep up that makes makes it a lot better especially that heavy tailgate and spare tire

[@williamthompson969]

What gears you running?

[@ManleyMachines]

4.10s front and rear. Its a dog,I know and moving to 4.88 is possible for the future.

[@robertcurlee2112]

Start by putting a supercharger on it the 2.5l loves 5 psi of boost and it cheap to do.

[@keithbishop4656]

Any pictures of that set up?

[@ManleyMachines]

I'm interested as well. If he can provide some details, I would consider attempting it.

[@robertcurlee2112]

@@ManleyMachines m62 shorty supercharger from k series Mercedes Split second piggy back computer 32 lbs injector Move throttle body passenger side Fuel/air ratio gas Header and change exhaust 2 1/2 Make some bracket and the stock a/c belt will fit Install a intercooler from a mr2 That's the basic

[@robertcurlee2112]

@@keithbishop4656 it will not let me add pictures

[@harveyhakbar4031]

@@keithbishop4656 kzbin.info/www/bejne/Y52rmoxrrdKSprs

[@nobuddynoah]

How hard is it to do that flsuhmount pod mod for the parking lights, and do they activate with the blinkers?

[@ManleyMachines]

It was very easy. I drilled holes in the lights where the factory turn signal screws are. They are hooked up to the blinkers, but I don't have them on the parking lights. There is a way to have both, but I haven't had time to research it.

[@nobuddynoah]

@@ManleyMachines Awesome I might have to get myself a pair, I was thinking amber ones if I can find them and hooking them to my blinkers as well as parking lights! Thank you for the info!!

[@ManleyMachines]

For the fact that they were less than 20 bucks that was quite a deal

[@ManleyMachines]

@@nobuddynoah If I find the schematic for wiring it up with the parking and turn signals both working, Ill shoot a video!

[@nobuddynoah]

That would be awesome. Thanks a lot man!!

[@eddygoodwin7089]

I put Bosch in 98 f150 and that was a mistake. Some of the porcelain chipped off and went trough my valves and bent them. Bad idea

[@ManleyMachines]

Im a big fan of running whatever came OEM in the vehicle. Motorcraft have never let me down in a Ford (sometimes Ive used Autolite, but only in a 302). For Chrysler we use Champion unless its a Hemi (they come stock with NGK).

[@onlyoneromeo]

Is the engine knocking ?

[@ManleyMachines]

No, timing chain slapping the cover. It's the first thing I'm doing when the snow melts here in the Northeast.

[@troygallipoli3638]

@@ManleyMachines how big of a job is the timing chain?

[@ManleyMachines]

@@troygallipoli3638 not terrible if you are familiar with tools. It's one step past pulling the water pump, and removing the crank pulley. Rotate the motor until the marks line up, then remove/install new. However, this does need a new engine. We have a piston that's got skirt issues....

[@gabrielmartinez3171]

Where did you find the jeep for $500.00 0.0

[@ManleyMachines]

I was in the right place at the right time. There was a small amount of frame rot that a shop had convinced her was structural (it wasn't) on the rear leaf mount. I fixed it for less than 100 bucks, and gusseted the rear frame mounts. Also - I did explain that it wasn't as bad as she thought, and I offered to repair it... but she wanted it gone. So $500 was her "scrap price"

[@gabrielmartinez3171]

@@ManleyMachines lucky man.