HJ60 Oil eating and leaking..

Tom Miller Jun 20, 2018

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  1. Tom Miller

    Tom Miller New Member I am in great_britain

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    Hi everyone,

    I have run a search on the threads but didn't come up with anything so apologies if this question has been answered.

    I have an HJ60 (1982) that was originally an AUS truck but now lives in the UK. I bought it from North Scotland with a recent re-spray and a dipped sub frame and new clutch. The 600 mile ride down to London was sweet! No problems sitting at 70 and chugging along,

    I did notice quite a bad diesel smell but as I am new to the trucks, I didn't think much of it.

    More recently the following has developed:
    White smoke from the exhaust on start up (especially bad after a little rest of the engine e.g. 5 days)
    Smell of diesel from the exhaust constantly emitted when running
    Oil leak from what seems to be the rear of the engine at the centre 0f the vehicle

    What this means is that I am eating oil, like almost a litre every 300 miles or so. I am currently topping it up with 15W 40

    The engine is very smooth and pulls well, I don't have any issues with the drivability and we have done a bit of strenuous off roading without incident.

    I am hoping the issues are related but I have a horrible feeling they are not.

    Anyone with experience on this?
     
  2. StarCruiser

    StarCruiser Well-Known Member Supporter Guru I am in uk

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    Hi Tom and Welcome.

    I’ve fortunately not had experience of this but would suggest you get a compression test done. Check your oil for signs of diesel in it and your radiator for signs of oil or combustion products.

    Common causes are head gasket leak or more likely stuck or broken piston ring. Spray pattern and condition of injectors can also cause white smoke but not oil consumption.
    How bad is the leak from the rear of the engine? Do you have any history on the vehicle? Which engine is it? Do you get any bluish smoke from the exhaust? Does it have a turbo?

    There’s guys on here far more knowledgeable than I on these engines.

    Good luck with it.

    Rich
     
  3. Rodger

    Rodger Well-Known Member

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    Hi Tom and welcome,

    I think that the two issues are not necessarily related:
    Oil leak at the rear - the oil return way is at the rear of the head/block and if this oil way is partially blocked then the oil will escape via the rocker box gasket. It maybe worth removing the rocker box cover, cleaning and replacing the gasket. If you find a build up of old hardened oil, refit the gasket and rocker box and do an engine flush then change oil, filter, r/box gasket. I had this on my 2H when I first got it.

    The smell of diesel suggests, as the truck is pulling okay, that either the fuel return pipe is partially blocked/ has a pin hole or that the injectors need servicing (although it probably wouldn't be running smoothly if that was so). Also change the fuel filter and bleed the system. Air filter clean?

    White smoke on start up does suggest that the glowplugs aren't operating properly. Can you hear the relay click when in the start up sequence? If so it maybe the glowplugs themselves. (Make sure you get right plugs - Oz trucks are 12v - other countries tend to be 24v and the plugs are different).

    2H engines are super reliable, even if they are old technology, so, although I agree with Rich and a compression test etc would be a good exercise, it sounds to me like a number of unconnected items need addressing.

    Hope this helps.

    Regards,

    Rodger
     
  4. StarCruiser

    StarCruiser Well-Known Member Supporter Guru I am in uk

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    I knew there would be someone with more knowledge on that specific engine and agree, look at the simple things first. :thumbup:
     
  5. AndycruiserguyLomas

    AndycruiserguyLomas Well-Known Member I am in england

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    Although I can only add to the thorough answer from Rodger I've just cured my 60 with some similar symptoms. Although there was a fair oil leak from the rocker gasket it wasn't using oil at that prodigios rate.
    White smoke on start up is usually just one glow plug if it starts pretty well, I replaced all six of mine after the engine was rebuilt but ran white smoke for the first min as one was down. They don't start well, or at all if the glow plugs are poor.
    The 2H engine will still run ok even when the injectors are way past their best but I'd have them out and tested. if they are well below spec they can be re tipped relatively inexpensively as a set of tips is below £100.
    When you have the basics sorted and you know it runs ok if it still uses oil at the same rate I'd be inclined to have a look at the compression side of things in the engine. I've had lots of 60's over the last 20 years and none I've run have ever used any oil except the one I had the engine down as can be seen here.

    https://www.landcruiserclub.net/community/threads/its-been-some-time.148762/

    Keep us informed as to how you go on.
     
  6. Ben Stratford

    Ben Stratford Well-Known Member Supporter I am in england

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    Potentially crankshaft rear oil seal may be leaking too. Is the engine covered in oil, a clean may help to reveal some evidence.
    Another thing to check is the oil return pipe from the vacuum pump and the back of the alternator. If this has come adrift there could be losses.
     
    Rodger likes this.
  7. Tom Miller

    Tom Miller New Member I am in great_britain

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    You guys are amazing! Thanks so much for the advice and first points of call. I took a few snaps under the engine to identify where the leak is stemming from but will get more thoroughly into it. Have been away for a while but drove on the weekend and the white smoke is now being emitted under load but il will follow the steps above and get diagnosing. Also uncovered a worrying mat of wiring in the engine bay but might ignore that until the engine is running smooth. P.s. If anyone wanted to recommend a mechanic close to Northants or London that will take on a 60 series, please do let me know!

    Thanks again!
    Tom

    IMG_5364.JPG IMG_5370.JPG IMG_5375.JPG IMG_5729.JPG
     
  8. moggy1968

    moggy1968 Well-Known Member

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    Not very near but Julian voelecker is your man for cruisers
     
  9. Rodger

    Rodger Well-Known Member

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    Hi Tom,

    May I suggest that a engine wash with Gunk or Jizer and then a steam clean of the engine bay would help to narrow down the source. (cover the wings, alternator and screen in cling film and that will save a load of cleaning up later) and use a nylon brush (not wire) to shift the caked on stuff.
    Obviously it needs a new sump bolt and washer as an animal has tried to eat it! But the oil flow to the rear indicates a top end leak as the oil appears to be adhering to the inner panels rather than coating the g/box and transfer/box.
    Similarly the leak does not appear to be under pressure as so much is gathering around the sump.
    The white smoke under load could be as simple as the water separator needs draining and the light is not connected (mass of wiring).

    Regards,

    Rodger
     
  10. Rodger

    Rodger Well-Known Member

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    Hi Tom,

    I just started my truck after 3 weeks standing and no smoke. And a thought crossed my mind about your white smoke after starting and under load...
    Check your glow plugs as the white smoke is unburnt fuel so it is firing by compression. Smoke when under load suggests that it is over-fuelling so it may well be worth getting the injector pump checked or as Andy said - get the injectors checked.
    If there are no Toyota specialist mechanics near you a diesel specialist will be able to help.

    Regards,

    Rodger
     
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