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1986 dg 1900. Unusual oil leak on top of engine?
Posted: 28 Feb 2012, 17:06
by maxstu
Can anyone identify this problem please? As you can see its just below the dizzy. As if a rubber bung or plug is missing? Does not seem to be under any pressure. Just gently seeping out.
Regards
Stuart
Re: 1986 dg 1900. Unusual oil leak on top of engine?
Posted: 28 Feb 2012, 20:14
by sandfish
just had a quick look at a 1.9 dg motor i have on the bench, this hole would seem to be for a bolt, on this engine its not had anything in it. and it should not be possible for oil to come out ! you sure it not running down and collecting here? may be give it a wipe and keep checking it,
Re: 1986 dg 1900. Unusual oil leak on top of engine?
Posted: 29 Feb 2012, 00:12
by maxstu
Cant possibly see an alternative source. It fairly isolated there. Will check the S pipe ffrom tower weds. Thanks Stuart
Re: 1986 dg 1900. Unusual oil leak on top of engine?
Posted: 29 Feb 2012, 08:17
by Rich Tea
It could be coming from the distributor shaft seal. They go hard in time. Cheap and easy to fit. If it's anything like mine you'll be surprised how brittle the old seal is when you remove it.
Cheers Rich
Re: 1986 dg 1900. Unusual oil leak on top of engine?
Posted: 29 Feb 2012, 08:48
by Ian Hulley
It's just pooling there from another leak, fuel pump base is what springs to mind.
Ian
Re: 1986 dg 1900. Unusual oil leak on top of engine?
Posted: 29 Feb 2012, 10:35
by Woody49
If its not a case of thread stealing - could I just ask if the picture depicts a standard orientation of the dizzy i.e the mushroom position in relation to dizzy holding down bolt fuel pump etc. for a DG.
I have spent an age looking for such a picture.
Regards
Re: 1986 dg 1900. Unusual oil leak on top of engine?
Posted: 29 Feb 2012, 10:54
by Ian Hulley
Woody49 wrote:If its not a case of thread stealing - could I just ask if the picture depicts a standard orientation of the dizzy i.e the mushroom position in relation to dizzy holding down bolt fuel pump etc. for a DG.
This is a gassed DJ with a DG carb but I'm sure you'll get the idea.
Ian
Re: 1986 dg 1900. Unusual oil leak on top of engine?
Posted: 29 Feb 2012, 11:49
by Woody49
Ian many thanks, so the answer is yes - I hope Maxstu got the answer to his oil leak and apologies for the interruption.
Regards
Re: 1986 dg 1900. Unusual oil leak on top of engine?
Posted: 29 Feb 2012, 15:05
by maxstu
Good answers from all with many thanks. Will give oil a wipe off and keep an eye on suggested areas.
No problem Woody. Besides Ian picture brings forth another question and solution....
Hi Ian, and the material of replacement breather pipe between tower and airbox is please? Mines beginning to collapse.
Cheers
Stu
Re: 1986 dg 1900. Unusual oil leak on top of engine?
Posted: 29 Feb 2012, 17:19
by Ian Hulley
20mm i.d. silicone hose with a stainless spring up the middle to stop it kinking. 6 years later the spring is out as the hose has hardened.
Ian
Re: 1986 dg 1900. Unusual oil leak on top of engine?
Posted: 29 Feb 2012, 17:41
by maxstu
Ian Hulley wrote:20mm i.d. silicone hose with a stainless spring up the middle to stop it kinking. 6 years later the spring is out as the hose has hardened.
Ian
Cheers for the info.
Ive just taken another look at oil leak. And as mentioned above it is coming from base of dizzy, fuel pump and black tower. The hole with oil in (see original photo) is a threaded for ancillary item, I suspect, and is a about 25mm deep.
Gently nipped down nuts for oil tower, bit more on fuel pump and will replace seal on dizzy.
Many thanks