L300 Head replacement and timing belt DIY, step by step

Does your Mitsubishi L300 make a strange noise? Need wheel alignment specs?
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north54
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L300 Head replacement and timing belt DIY, step by step

Postby north54 » Wed Dec 06, 2017 3:49 pm

Genuine Mitsubishi and better quality. Peace of mind and IMHO wouldn't get anything other than genuine when it comes to timing, head gaskets, etc. I Definately wouldn't trust the 2nd option in your picture "Mitsuboshi" :-D
TRUSTY RUSTY

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Growlerbearnz
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L300 Head replacement and timing belt DIY, step by step

Postby Growlerbearnz » Wed Dec 06, 2017 5:28 pm

As dodgy as it sounds, Mitsuboshi are OEM manufacturers for some Mitsubishi belts (My genuine Mitsubishi alternator belts are just Mitsuboshi belts in a Mitsubishi box.)

I wouldn't be surprised if the Mitsubishi and Mitsuboshi belts are identical. But still, for the sake of $30 I'd be ordering the genuine part.
Nothing says "poor workmanship" more than wrinkles in the duct tape.

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weelsey
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L300 Head replacement and timing belt DIY, step by step

Postby weelsey » Wed Dec 20, 2017 12:03 pm

Well, I went with Italian. I bought a timing belt kit by Dayco.... for the north american 2.3l. Tensioners, belts, three seals under 100CAD suited my budget'think any of the parts will fit?
Perhaps I will be reusing old equipment when I put it back together. The most immediate concern still being the leaking IP front seal.
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weelsey
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L300 Head replacement and timing belt DIY, step by step

Postby weelsey » Sat Jan 06, 2018 7:53 pm

Each of the belts, tensioners, cam seal from the dayco kit were a fine replacent. The balance shafts and crank seals I did not use. Rock auto says there are more of these now, tho when I ordere it said one remaining.
Little tight drilling holes in the old camshaft seal to remove with rad in place but doable using short drill and bits.
Tensioners seemed every bit equal.

FalcoColumbarius wrote:
Matt&Kim wrote:curious if it's entirely necessary to replace the head bolts when I do it.

Thanks!

[color= I would think the current head bolts would have stretched over time. How much would you save if you left the old bolts in ~ as compared to the engine's overall longevity and performance integrity? (Rhetorical)

Falco.[/color]

i agree these stretch. For clarity can I have my understanding confirmed or refuted that these are not a tourque to yeild head bolt? Tks

Ciaran15
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L300 Head replacement and timing belt DIY, step by step

Postby Ciaran15 » Thu Mar 01, 2018 12:19 pm

great stuff this is a top class write up...great pictures and very informative... it must have taken you ages to do. I just had a massive coolant leak today found out it has come from the core plugs on the block they were rusted through. So from your pics of the exhaust manifold removal i see i can get at them by just taking that off and replacing them...thanks for your time and effort. top job

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weelsey
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L300 Head replacement and timing belt DIY, step by step

Postby weelsey » Tue Mar 13, 2018 3:58 pm

[quote="Tojo"][/quote]
Question for you (et al). How had you handled the job of replacing injectors in the new head? Was this something you farmed out? sorry if I missed it in the thread.

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L300 Head replacement and timing belt DIY, step by step

Postby Growlerbearnz » Tue Mar 13, 2018 11:29 pm

weelsey wrote:I agree these stretch. For clarity can I have my understanding confirmed or refuted that these are not a torque to yield head bolt? Tks


Correct, 4D56 head bolts are not torque to yield. They can be re-used if they're still in as-new condition. Any pitting, corrosion, or galling on the threads or heads and all bets are off.

weelsey wrote:How had you handled the job of replacing injectors in the new head? Was this something you farmed out? sorry if I missed it in the thread.


Fit new body and nozzle washers/gaskets, tighten to 54Nm using a long socket. Or have I misunderstood the question?
Nothing says "poor workmanship" more than wrinkles in the duct tape.

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L300 Head replacement and timing belt DIY, step by step

Postby weelsey » Fri Apr 20, 2018 9:33 am

weelsey wrote:Or have I misunderstood the question?

Thanks, that was it in part. I was hoping to glean what I may from Tojo's experience. I encountered things like considerable carbon and stubborn seat washers, cleaning and working carefully to keep debris out of the head. I was trying to learn as much as I could about the engine by inspection of the injectors.

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L300 Head replacement and timing belt DIY, step by step

Postby jimjames » Fri Jul 20, 2018 6:29 pm

I have a L300 with an 4d56 and am wondering if the head can be removed with both manifolds attached. Could I be so fortunate. Any thoughts appreciated...thank you.
Jim
Jim James


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