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G'day guys, just wondering, after reading another post, do the 150s suffer the same clogging oil pick up problem, as the 120s? Any explanation or reason for it, and best way to minimise the risk.. Thanks all.. Odog
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I second that question... I'm surprised how many issues the 120 series D4D has, but quite hard to find actual details of 150 D4D destruction issues.
I'm assuming the earlier dodgy injector seats/seals/sheets caused blowback -> causes sludging/ deposits -> causes blocked pickup.
And this is lesser an issue on newer vehicles with revised sheets? Only a guess from reading. They didn't change the pickup system at all between series I'm assuming!
Cheers2013 (MY14 Facelift) GX - KDJ150R
-ARB Alloy Roof Rack -SMART Bar -LED rear work light
-Dual batt. (Red arc sBi) -Secondary fuel filter
-9" Supacentre LED spotlights -Bushskinz bash plates
-Safari snorkel -
Don't worry don't fear.........
Any injectors from 01/08 have revised seats in them.
So generally they don't leak. So you don't have to worry!
But just check the oil pickup at oil changes, it's a 10 second look, free insurance.
Because they can leak! BUT BUT BUT, you said they don't leak.
Here we go I will get into trouble again,
Once it has been worked on, eg; injectors removed its open to possible problems.
Did they clean the ports?
Did they use ONLY genuine Toyota coated sheets/seats?
Did they use a quality torque wrench & accurately torque them to 22nm?
If the answer is yes, it will be fine. It's when those 3 rules are not adhered to you can have issues.
40k&80k valve clearance checks, forget it! Don't do it! They will be fine.
Risk of contamination is too high.
@120k they should be checked, the valve clearances.
The injectors are worn & due for replacement then. Get a professional to do it.
Use the savings from 40k & 80k to pay for injectors.
Change your oil, check your oil pickup.Comment
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Owen
Mine would have had the new coated seats as it was a July 08 build. But I had the injectors changed at 125000 km and something went terribly wrong and no one was checking the oil pick up on servicing.
I (and I hope others) have learned a very valuable lesson. I assumed all was OK as I was doing the right thing.Terry
Canberra
2008 Prado 120 D4D and 2010 Jayco Swan OutbackComment
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Originally posted by OldGreyFart View Post
I don't know for sure, but I thought the new coated seats may have come out well after 2008? I believe some 150 Prados had injector seat issues, and some of those models were 2009 and early 2010....but I honestly don't know for sure.
Either way, something has gone wrong since the injectors were changed out some years later.
Also, just out of interest...injector seats leak...somehow crud ends up in the oil or the oil clumps up, and oil pickup gets clogged.
I wonder if the type and grade of engine oil also comes into play with this issue? ie an oil with a higher grade/spec may not clump up as fast when the injector seats leak/blow by or whatever....perhaps...just a thought because it is sooooo easy to walk into a store or have a dealership put the wrong lower quality oil or get the wrong engine oil altogether...just another thought that's all.SE Qld: GX 150GD Auto, (Feb'16 build): TJM T15 steel b bar, 9,500lb TORQ winch, TJM s steps, Rhino Pioneer Platform (42102B 1928X1236mm), front recovery points, Wynnum towbar, P3 brake controller, TNN Underbody guards, UHF, TREKtable & LED striplight, Custom Fridge & Drawers, Waeco CFX50, 9inch illuminator 160W LED spots, 40mm lifted Dobinson Suspension (Zordo's), ScanguageII, 30 Sec Wing AwningComment
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Hi Guys, firstly a big thank you to "shedding some light"... I know this topic has been thrashed out for a while previously.. But, think I'm getting it now, and feel that the big issue, is the clogged oil pick up.. It's not your injectors that crack the piston, be it dirty fuel, or water contamination, neither of which we want anyway. But the oil pickup, starving the engine, which ends up cracking a piston, and doing the damage. Yes, the injector seat, if faulty, may cause, or add to the sludge built up, but I think the build up of it, would occur anyway, but maybe not as quickly... Does this basically sound feisable...
So, thinking down this path, anything that could add to the problem, would be the exhaust gas burn (EGR restriction plate fit to reduce this)
Any blow by burn, from the sump breather (fit a good quality catch can)
Change engine oil and filter, and check the pickup at the same time, on a regular basis..
But then who do you trust... was always told, "if a job is worth doing, then do it properly"... So might have to start doing it yourself...
What ever you can do, I guess, to help with the issues, and reliability of these engines, and be confident you can get home ok, every time, will hopefully add to their life..
Thanks again guys.. Cheers OdogComment
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Odog, worn injectors crack Pistons. Poor atomisation leaks to larger droplets which, in a cold engine, don't burn. This fuel can pool on the top of pistons and when it does burn / detonate the forces can crack Pistons. Lots of 'can' but that is generally the mechanism. Lubricating oil starvation runs bearings and reduces oil spray under Pistons too.My 150 build - http://www.pradopoint.com/showthread.php?27423-A-Random-approach-to-a-Bluestorm-150-GXL-D4D-automaticComment
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Thank you ####.. That's a great read, and it's exactly what everyone needs to know.. You should see if mr toyota would let you put out a supplement to there owners manual.. Ha.. Ha.. Cheers for that..Originally posted by Anth120playdo View PostComment
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Yeah, I'm with you.. Didnt think about "pooling" as in an accumulation of fuel.. From a faulty/dirty injector... Man, so much to keep these engines happy.. Like having another child!...Originally posted by mjrandom View PostComment
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Hi Terry, I never realised you were the OGF, till I had a look to find some info, and saw the dramas, then realised it was you. So sorry to hear what happened to your rig.. Would have been a shock to the system.. Hope it all comes together, and is back on the road soon.. Be looking forward to next trip... Cheers OwenOriginally posted by OldGreyFart View PostComment
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Can someone post what needs to be done to actually clean the fuel pickup. My 150 should be OK with the newer seats but I intend to get them to take a photo when changing the oil.
If it is dirty, just how big a job is it to clean it ?Comment
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This was after I had completed a recce up to the Brindies on that trip you couldn't attend. Still went on it taking advantage of an offer from John and Maureen for a ride. Tell you the whole story at our next coffee get together.Originally posted by O Dog View PostTerry
Canberra
2008 Prado 120 D4D and 2010 Jayco Swan OutbackComment
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It's the oil pickup.Originally posted by ozimacca View Post
Dave don't stress, it will be fine. Just get whoever to confirm they are checking the oil pickup at each oil change.Comment
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I knew thatOriginally posted by Anth120playdo View Post
lol
My asking was more for future seachers of PP, if we can get a "how to" now while it is a hot topic it will give us a reference post for future use. The more "how to" post there are on PP the more Prado owners can get reliable help without relying on Mr ToyoComment
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