Clean It Up
UK General Cleaning Forum => General Cleaning Forum => Topic started by: Blast Away on December 16, 2012, 11:10:54 am
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I've spent money trying to resolve an issue with this engine.
It's had a new air filter, new fuel filter, new nozzle fitted to the injector, another fuel pump put on and the guys at the service shop still can't get it started.
There's compression there but it's just not having it.
Carl, can you solve the mystery?
I'm on the look out for another Yanmar now or may stump up and buy a new L100N for £1200.
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Ive seen on ebay someone selling brandnew engine only yanmars. cant remember how much.
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If they have spent time working on the fueling then surely they must still think its a fuel issue. I'd start with the injector and make sure it pressures and atomises. Depending on what happens there then it will be an injection pump issue, I'd check the compression and engine timing - does it inject fuel just before TDC on the compression stroke ?
If you get stuck send it to me - a mate is coming somewhere North Tuesday to collect a bike.Matt can you post a link to those engines please as another mate has blown his kubota oc95
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If they have spent time working on the fueling then surely they must still think its a fuel issue. I'd start with the injector and make sure it pressures and atomises. Depending on what happens there then it will be an injection pump issue, I'd check the compression and engine timing - does it inject fuel just before TDC on the compression stroke ?
If you get stuck send it to me - a mate is coming somewhere North Tuesday to collect a bike.Matt can you post a link to those engines please as another mate has blown his kubota oc95
Yeh I seen those on ebay a few weeks ago, they're not listed now but they're similar price to Seddons.
Injector nozzle was replaced by and tested by Hi Tech Diesel's and is fine.
Wouldn't know about that Carl to be honest.
It's a gamble taking it down mate and having to sort a courier to fetch it back up.
does it inject fuel just before TDC on the compression stroke ?
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Yes. I'll not worked on these particular engines but the injector is piped so you can remove the injector and turn the pipe and refit the injector out of the engine, the injector should give a good mist in a burst. The injector should not dribble when the pressure is held but if its been tested it should be fine. The pump should have been tested with the injector because if its a fueling issue then that is the only other thing it can be - if the seals are shot then it will not develop pressure and hence inject at the injector. The pump looks to run directly off the cam so engine timing can be ruled out unless its stripped a tooth or more likely a woodruff key. This may still give compression but obviously would not start.
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My L100 is in at the moment, I knackered up the pull start a couple of weeks ago.
The guy at the machine shop said they were having problems getting it started, after a bit of tinkering he found that the valves were pitted, he's sorted that out and tells me it satrts fine off the pull..
Now all I need is the elecy start sorted...
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Carl,
Like Lee said, those engines aren't listed anymore. But tell your mate to keep his eyes on ebay, I've seen those new Yanmar's for sale a couple of times now. Just the engine with electric start. Not sure on the type of shaft though.
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Carl if it helps they held a propane torch towards the air intake last week and it eventually kicked over. This was before the injector went back in with replaced nozzle.
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I've never seen anyone doing that before, usually easy start. The fact remains that they have worked on the fueling but it still don't go. Squirt diesel at the right time with enough compression and it should go. Prove the fueling with the injector out of the engine - if it squirts then it will be either timing or a lack of compression.I can't believe they can't figure it out. Pour a little thick oil down the intake port to aid compression.
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I've never seen anyone doing that before, usually easy start. The fact remains that they have worked on the fueling but it still don't go. Squirt diesel at the right time with enough compression and it should go. Prove the fueling with the injector out of the engine - if it squirts then it will be either timing or a lack of compression.I can't believe they can't figure it out. Pour a little thick oil down the intake port to aid compression.
They've said on a few occasions that easy start knackers the engine.
It deffo squirts after the pump before the injector. They reckon there's plenty of compression.
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East start will aid the start of an engine with a problem, it dosn't do them any favours but in this case it may show where the problem lies. I have heard people say engines become addicted to it but after all a worn engine will only get worse and not heal up. In this case it would give an idea of the problem. I'd whip the injector out and reconnect it with the pipe turned out of the engine because the pump may pump diesel at a low pressure ie with the pipe cracked but by-pass under full pressure when injecting. This would proove the fuel system. Some thick oil - a small cap full would boost compression which would proove the mechanical side if the fueling seems ok. If they have checked the injector ie crack off, pattern and holding then I'm thinking the pump seals. £70 off flea bay. Lee if they can't fix it they should either say "its because" or not charge you.
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My brother in law has 2 diesel fitters on the sweepers, I'll get them to have a quick look, when I get chance too.
I'll try what you suggested with them and tell them the story so far.
Will update on this, may be of use to someone too in future if we get it going.
Cheers Carl
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Does it smoke when you turn it over? Saying it has enough compression is not enough...you need a compression tester. Did it start in the summer ok? (Warm weather) Does it start and run ok when you give heat to the manifold..if so sounds like lack of compression ,rings worn bore...compression tester ..(take out injector put some oil down the bore) Have you checked the obvious like water in the fuel (water will not compress to inject....or burn for that matter!!) Blocked return or fuel filter .Take the injector pump off and test that. sorry i'm rambling.... My number is 07973216502 i am a mine of useless infomation about diesel engines....would you like to buy some smartseal products ;D
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http://www.ebay.co.uk/itm/221169398754?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
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change the fuel in the tank just incase it is not what you think. just a thought.
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change the fuel in the tank just incase it is not what you think. just a thought.
Fuel was changed mate with the new fuel filter.
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There are 3 yanmar cylinder heads on ebay,here`s 1,
http://www.ebay.co.uk/itm/Yanmar-L100-Cylinder-Head-/321043131534?pt=UK_BOI_Industrial_Tools_Generators_ET&hash=item4abfa96c8e
it just made me wonder do the cylinder heads have a common problem,hairline cracks reducing compression or something,just guessing.
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Pitting/corrosion around the exhaust valve,compression but not enough for Diesel?
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Found these ...just make sure they are not Chinese ! The Italians in general make good engines.
http://stores.ebay.co.uk/deltastore-technology/MOTORI-DIESEL-/_i.html?rt=nc&_fsub=1633426017&_sid=261385687&_trksid=p4634.c0.m14.l1581&_pgn=1
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My mate just bought one of those acme motore washers second hand. Looks just like a yanmar but apparently Lombardini just bought over a few of the smaller italian engine manufacturers so most of them are pretty reliable and parts can be gotten easily from lombardini.
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Looks a good un,
http://www.ebay.co.uk/itm/YANMAR-L100-CYLINDER-HEAD-/290837542075?pt=UK_BOI_FarmingEquipment_RL&hash=item43b744b4bb,
just thought i`d link it in case you have the head off and found damage.
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Found these ...just make sure they are not Chinese ! The Italians in general make good engines.
http://stores.ebay.co.uk/deltastore-technology/MOTORI-DIESEL-/_i.html?rt=nc&_fsub=1633426017&_sid=261385687&_trksid=p4634.c0.m14.l1581&_pgn=1
Good find Chris. Like that 14hp that looks like a Yanmar. Will the shaft size be fine though?
Looks a good un,
http://www.ebay.co.uk/itm/YANMAR-L100-CYLINDER-HEAD-/290837542075?pt=UK_BOI_FarmingEquipment_RL&hash=item43b744b4bb,
just thought i`d link it in case you have the head off and found damage.
Will that be the same as for L100v? Is that an L100AE or are they all the same?
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Lee, they may be supplied from Italy but it does not mean they are Italian. I would say the Lombardini's are what they say but the rest look to me like they are snides. I smell beansprouts not pasta ;) I may be wrong though
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Lee, they may be supplied from Italy but it does not mean they are Italian. I would say the Lombardini's are what they say but the rest look to me like they are snides. I smell beansprouts not pasta ;) I may be wrong though
;D
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Just enlarged on of the photos...it says kippor. Kippor is high end chinese crap! Then again loncin are making engines for BMW! http://www.youtube.com/watch?v=oXbt8NPaeoQ
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Just enlarged on of the photos...it says kippor. Kippor is high end chinese crap! Then again loncin are making engines for BMW! http://www.youtube.com/watch?v=oXbt8NPaeoQ
Why dont you just put some rings in your old engine?
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Most of the shafts on those italian ebay jobbies look too short and tapered.
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What was the out come of the OP ? Did you get it sorted out and what was the problem ?
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Carl, it's sat in the container. Not done anything with it.