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144k miles, getting ready for a new engine

 
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  #1 (permalink)  
Old 27 Dec 2011, 05:50 pm
Samson's Avatar
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Question 144k miles, getting ready for a new engine

Hi all,
I have a 2006 non-turbo with just shy of 145k miles. The only major problem I have had other than normal wear and tear items is I had a minor fender bender which cracked the radiator and overheated the engine, resulting in a blown head gasket. I replaced the head along with the gasket at 120k miles.

I use the car for towing a single waverunner with no problems at all.
I am starting to hear a bit of "dieseling" when letting off the gas at slower speeds, which I assume is worn rings and/or bearings.

While the engine is running fairly well now (I use it to commute 160 miles round trip each day with no issues, averaging 24 mpg), I know the inevitable need for an engine change/rebuild is coming. I would like to get a little more horsepower out of it, but its not completely necessary (chugs a bit going up long hills while towing).

Options:
I can get a "new" engine on ebay that will need a oil pan-oil pump-intake/exhaust manifold swap for $1250.
Low mileage used engines run around $900.
Remanufactured engine on ebay for $2100
There are some local machine shops that can rebuild, although I havent checked on prices yet.

What is the best way to go? How hard is it to convert to a turbo engine?
Is the kenne bell supercharger a viable option on a rebuilt engine?
Im guessing I have a couple of months to get something in place. I love the car and dont really want a new car.
Thank you for any help you can suggest
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Old 27 Dec 2011, 09:58 pm
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Default Re: 144k miles, getting ready for a new engine

im a lot like you i drive a lot of miles to and from work btu the actual engin of a PT is one of the strong ponts with lots of them going way over 200,000

its a HUGE pauin to go to a Turbo unless you have EVERYTHING computor wiring harness its most likely not worth the hassle unless you have a lot of time and money
im not sure if there is a "CREAT" engin for the PT
as far as rebuilding the motor thats how i would do it mainly cause i know how mine has been treated and if i was doing the rebuild i would replace all the parts with way better parts a reman motor will ahve some new parts but a lot of the old ones just get a good cleaning
maybe a moptor out of a 2010 with super low miles is a good option
just my 2 cents worth

oh i also have a 2006 non turbo auto
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Old 28 Dec 2011, 01:42 pm
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Default Re: 144k miles, getting ready for a new engine

thank you very much for you input. I was thinking of a low mileage motor, but unless you see the engine in the car, no way to be sure of the miles.
Does anyone know of a good engine builder in the So Cal area?
Candyman?
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Old 28 Dec 2011, 01:49 pm
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Default Re: 144k miles, getting ready for a new engine

I'm not sure exactly where you're located in Southern California, but I used to live in the San Fernando Vally (Canoga Park and also Woodland Hills). There is a shop called Valley Head Service in Northridge, that always did excellent and affordable work for me when I lived out there. I hope this helps you.

Steve
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Old 28 Dec 2011, 02:21 pm
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Default Re: 144k miles, getting ready for a new engine

I would definitely NOT put in a rebuilt engine, or take chances on one from a junkyard.

If you believe rod bearings are a little loose, install new ones.
They're probably $5-$10 per rod, oil pan gasket is prolly $30, rod bolts ~$10

It's EZ, EZ to do on a 2.0, only difference on 2.4 is the balance shaft thingy being bolted below the crank.

Perhaps someone here could explain R&R of this component.

As Cruiser said, this is a very reliable engine, I'd ill advise replacing a 'known' with an 'unknown' in any case
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Old 28 Dec 2011, 03:06 pm
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Default Re: 144k miles, getting ready for a new engine

Thank you Uptown. Do you think the "dieseling" sound I hear at slow speeds when I let off the gas is rod bearing? That would be my first guess. Is replacing them a matter of dropping the pan and replacing them from under the car? I am decent at completing any work other than machine shop work as long as I have instructions and the necessary tools.

sscanlan I am in the murrieta/temecula area, but I can drive for a shop I can depend on, thank you very much
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Old 28 Dec 2011, 03:15 pm
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Default Re: 144k miles, getting ready for a new engine

In a Neon (same underside of engine) it EZ.

PT has braces and PS line running under, so you may wish to crawl under and look.
I understand the filter is different as well.
Otherwise, it's straight forward, rod caps are 'cracked' off at factory so theoretically you can't put 'em back on wrong
(I'd do the old dimples in the side with center punch just to be safe anyways)

Noise could be lots of things, is it a manual? Clutches can make noise.
Engine mounts? Lots of 'bad' engines here turned out to be bad mounts!
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Old 28 Dec 2011, 03:29 pm
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Default Re: 144k miles, getting ready for a new engine

automatic, and the sound is definitely in the engine. Its not bad at all, just hear it a little at slow speeds when I take my foot off the gas. Not really pinging, but kind of like that.
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Old 28 Dec 2011, 03:31 pm
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Default Re: 144k miles, getting ready for a new engine

so to replace the rod bearings, I would just take out the 2 rod bolts, replace the bearings, and replace the rod bolts and torque?
Sound easy enough
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