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  #1  
Old 04-08-2018
Cher's Dad's Avatar
Cher's Dad Cher's Dad is offline
(David)
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Jeep New engine.
Cher is getting a new engine.
This is my first engine swap and was wondering what are some of the things I may need new and what I could swap out?
I am getting my engine from promar engine, I heard from Kaspily they are pretty good.
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Old 04-08-2018
ob1jeeper ob1jeeper is offline
(Steve) (KG7EWF)
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Default Re: New engine.
How many miles on the vehicle/drivetrain combo you are swapping out, and what has been replaced in the last 25-30K? Mileage and difficulty of accessing when all back together, is what makes a big difference to me in what I consider replacing as a part of an engine swap.

For example:
-1 if the clutch (and it's related hard to get to parts, such as the Throw Out bearing or if it's an internal hydraulic release cylinder, the cover/pressure plate, etc.) hasn't been replaced in many miles, already having the engine out to where it's never going to be any more accessible, would be a time when I would seriously consider replacing many of these parts, even though it's still functioning fine. At the very least ALL of those items would be getting a VERY a close inspection.

2- Another item high on my list would be ALL engine mount cushions, and a close inspection of all engine and trans mounting brackets and hardware.

3- Other items worthy of a close inspection, and replacement are: water pumps, accesory drive belts, all coolant hoses (heater & radiator) along with a flush of the heater core and replacing ALL coolant with new coolant properly diluted to manuf. specs.

4- Also this is a good time to inspect any hydraulic hoses such as PS, auto trans, and the coolers associated with them for embrittlement/dry-rotting/cracking or soft spongy spots of the rubber, or damage that may be indicative of pending failures.

5- Finally, before removing the old engine, I'd suggest a through cleaning of the engine and transmission areas with a press washer, or similar which will help the job go much easier/smoother. If necessary, clean it again, AFTER the old engine is out and before the new one goes in, taking care to NOT pressure wash the electrical boxes, wiring, and connections. It's WAY WAY WAY nicer to work on clean parts... Plus, there's less likelyhood of you missing seeing pending issues because they are caked in grime...

HTH... I'm sure others will chime in as well... Good luck...
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Old 04-08-2018
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Curly Curly is offline
(Tim/Curly) (KF7INL)
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Default Re: New engine.
Before you ever pick up a wrench, get your camera and take pictures. Brackets, belt routing, wire harness and connectors. Pics are free, take lots. Masking tape with numbers or names for wire connectors that you disconnect. keep a list if you have to. Sandwich bags for bolts from brackets/manifolds/whatever. Label bags with masking tape and markers.

Support the trans when the engine comes out, don't let it hang by the tranny mount. I like to use a ratchet strap hooked from the hood hinges, under the trans. If you don't do that, support with a jack and/or stands.

Scribe around the hood mounting area with a sharp pick/tool to help align the hood after reinstalling it. (Before removal )

Don't reinstall worn accessories. IE: Waterpump, tstat, Starter, etc. If they have high miles, replace them now and enjoy a worry free post install time. As they say: Pay me now or pay me later.

Curly
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Old 04-09-2018
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theksmith theksmith is offline
(Kristoffer) (K1KRS)
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Default Re: New engine.
great advice from an engineer and mechanic already here!


an engine leveler for the hoist really helps out with getting everything to line back up when you are sliding the new engine in.

i especially found the "take photos" advice helpful on the couple replacements i've done. you won't need 49 of the 50 photos you take, but then there'll be that one place you can't remember how to route a wire/hose/etc. and then you're very thankful for that one photo.

buy a costco sized pack of large zip-lock freezer bags and a sharpie, then put the bolts for every single part (i.e. alternator, starter, etc.) in a separate bag and label what it was for. tape it or lay it next to the part it goes with.

if you have the room, lay each part & bag out on the garage floor in the exact order they were removed so you can easily re-assemble in reverse order.


as far as what parts to replace, like ob1 said - it mainly depends on how many miles/years are on each part and of course a visual inspection. belts/hoses/thermostat/water-pump/etc. are all cheap and die faster than many other parts, so they are a no-brainer to replace IMO. however, quality Mopar sensors can be expensive yet worth it, so if a sensor is working and the wiring/connectors are in good shape then probably only consider replacing ones that are hard to get to at a later point.
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Old 04-10-2018
Cher's Dad's Avatar
Cher's Dad Cher's Dad is offline
(David)
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Default Re: New engine.
It has about 30k on the engine. Since it loves to run hot. I was thinking new Water pump, Thermo, and I heard putting a zj fan clutch can also help. I have a 3 core, but I think I heard someone say the OBE one works better. Thank you all for all your help.. All suggestions are appreciated and will be followed.. I don't want to cheap out and be on the side of the road anymore.. :-)
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  #6  
Old 04-11-2018
Azoutlaw480 Azoutlaw480 is offline
(Jason)
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Default Re: New engine.
Shoot Id upgrade the intake manifold to the 99 one and get the 4 or 5 hole injectors (703) while youre at it.
(If you havent of course)
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