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#46 |
Join Date: Aug 2020
Location: Australia
Posts: 1,344
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Could it be Valve clearances....?
I have ordered a VE injection pump dial gauge timing kit as well as a diesel compression test kit.... But could my crappy running and tail pipe vape chuff be a sign of over tight valve clearances?
Mitsubishi Manual suggests 0.2mm intakes and 0.3mm exhaust... I can report that only the 2nd cylinder is close to specification with a 0.18mm intake and 0.3mm exhaust valve clearance. Cylinder 1 and 3 intakes are very tight 0.09mm and 0.1mm respectively. With the rest all being tighter than recommended in general. It appears the valve lash from the manufacturer was overtight and passed QC...I have contacted the ebay seller but I don't like my chances as they are requesting a licensed mechanics ID# as part of the warranty process... I did salvage the shims from the old head so I might be removing the SOHC and swapping shims over the weekend.... |
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#47 |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,556
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Shims! Those are no fun. It's always like doing the job over and over if you don't have the right shims you need, and you have take them out just to figure out what shim you need, whether you can move one from one to another position when possible. Then wait for ordered shims and do it all over again. Went through this on my first gen DOHC Suzuki 4 cylinder bikes.
Do you have the cam follower depression tool? I bought the tool and it was a pain in the neck rotating it into place. Stiff springs. ![]() Yes. I agree it can affect valve timing, especially at low rpm, which is wot you are seeing.
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-2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket -NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it Last edited by Thumper; 02-29-2024 at 07:22 AM. |
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#48 |
Join Date: Aug 2020
Location: Australia
Posts: 1,344
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Camd, lobe and shim
Well looks like I got fudged on the QC and was supplied an assembled head with oversized shims and bad clearances.
I have contacted the seller again. But i have pretty good case to open an ebay dispute now. Also have discovered exhaust lobe cyl 3 cam lobe has knife edged... So I'm going to install my old Mitsubishi cam and probably the buckets and shims too... Made in China not always a money saver.... |
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#49 |
Join Date: Aug 2020
Location: Australia
Posts: 1,344
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Doubling Down on Delicas
Yes My short wheel base van is still being worked on...I will need to order new specific sized shims for the valve clearances...
But I was looking online thinking about my vehicle choices and found this long wheel base 97 super exceed at a reduced to sell price. I know the song goes hold em, fold em or walk away...but sometimes you got to seize an opportunity and double down... I had to ask for a loan from big sister... test drove myself to make sure it wasn't a write off then shook hands and the seller agreed to drive it to my location. Its seen some beach holidays in its time...crunchy places but not terminal. However I basically paid the amount a used running engine is worth... I will rust treat it and try to save it from crumbling away anymore.. But right now I am trying to confirm the 9" rear diff is LSD and the same ratio as my worn 8" open rear.... Carchaeology commence... |
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#50 |
Join Date: Feb 2021
Location: Kansas City
Posts: 2,556
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Oh, nice. Maybe worth just driving it as is for a while before cannibalizing the drive train.
But wait... Now I see where the deep discount came from. You inherited the resident mammal. What's the dog's name? Don't forget you owe her for that discount ![]()
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-2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket -NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it |
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#51 |
Join Date: Aug 2020
Location: Australia
Posts: 1,344
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I'll be swapping the glove box handle first before any major blood knuckles and swearing...
Yes I can drive it locally with a cheeky plate swap but the new/old rustbucket is no longer registered as the seller kept plates under his name. Also it's an automatic slush box which for me takes some getting used to... The dog's name is Shylook, a German short haired pointer 'GSP' she's about 8 years old now. I might take her to the dog park as its been a few months stuck at home. |
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#54 |
Moderator
Join Date: Jul 2010
Location: Elburn, IL
Posts: 5,915
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There are worse things to find in an old car than a Patricia Cornwell book.
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Cheesy ______________________________________ 07 Hi Bird Enduro-Flown the Coop 07 Ural Gear Up 79 Honda CX500 77 VeloSolex 4600 V3 73 VeloSolex 3800 I'm making this up as I go.-Indiana Jones Telling me something 'is for my own good', is a fast way to a fat lip.-Me I don't even care about my own problems, why should I care about yours?-Quote on one of my favorite t-shirts |
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#56 |
Join Date: Aug 2020
Location: Australia
Posts: 1,344
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Well, After doing the shim math and ordering a new shim set to work with the OG cam in the new chinsy cylinder head and firing up the van it still ran a but chuffy...
So I will be doing a injection pump timing service with my new VE pump dial gauge indicator. Side note I went through 4 ebay customer help service members and with photo evidence and establishing the seller went silent regarding my cylinder head valve clearance and dusted cam it was likely the seller went into administration.... TLDR: I got a full refund. Which is appreciated considering the issue could have caused catastrophic engine damage in it's supplied non OEM specific configuration... Tackling some rust sections on the other LWB parts van... very wet and humid weather here though so body work isn't ideal right now. |
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#57 |
Join Date: Aug 2020
Location: Australia
Posts: 1,344
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Just some basic maintenance
Was doing an oil change and checked the air filter on the LWB.
not sure what type of oil or how old it was so seemed like a wise move. I also had a spare air filter which was in better condition then what was previously installed... Cleaned the air box and checked the turbo for end float... While removing the intake tube I made a remarkable "Performance Mod" discovery... A genuine HiClone air intake induction swirl thingy... Which I will tell you now is actually detrimental...Not only was installed on a pre turbo diesel situation as opposed to a naturally aspirated petrol engine... But if anything it just acts as an air flow restriction... Though I might be tempted to see if it fits in my 3" snorkel plan as a safety grill/rat shield. Last edited by XLsior; 04-06-2024 at 04:37 PM. |
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