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Author Topic: Using oil with 3000 miles on rebuild  (Read 9357 times)

Reply #15July 05, 2012, 10:26:44 am

wil892

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Re: Using oil with 3000 miles on rebuild
« Reply #15 on: July 05, 2012, 10:26:44 am »
No we don't get rotella here in the UK, it must be a US brand. I can only seem to get HD 10w30 oil in 25 litre containers at agricultural stores. Most older cars tend to be run on 15w40 or 10w40. 5w30 and 10w30 being used for Fords and newer cars with longlife intervals
1991 Golf MK2 GTD

Reply #16January 29, 2013, 11:08:16 am

wil892

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Re: Using oil with 3000 miles on rebuild
« Reply #16 on: January 29, 2013, 11:08:16 am »
Just an update to this situation.

My engine now has 7500 miles on it, it runs so well and has noticeably loosened up in the last 2-3k miles. Just to test recently, it has been about 0 degrees celcius, I gave the car 2-3 seconds on glow plugs and it fired first rev and no missing, timing is set to 0.87mm.

To me this says compression is awesome, but I am still going through approx 1 litre every 1000 miles. Apart from a brief period on 10w40 I ran the engine with 15w40 mineral up to 5000 miles and it is now on 10w40 again. No change to consumption between the two oils.

This is exactly the same amount the car was using before engine and turbo rebuild.

Is this issue indicative of a broken oil control ring?
1991 Golf MK2 GTD

Reply #17January 29, 2013, 11:20:08 am

tyb525

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Re: Using oil with 3000 miles on rebuild
« Reply #17 on: January 29, 2013, 11:20:08 am »
In this part of Indiana I can only get 10w30 rotella in one store, and they only keep 2 gallon on hand in the back, you have to ask for it. Nowhere else seems to sell it.
2004 Golf BEW, '81 1.6 NA rabbit (soon to be parted out)

Reply #18January 29, 2013, 04:12:56 pm

nwcali6

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Re: Using oil with 3000 miles on rebuild
« Reply #18 on: January 29, 2013, 04:12:56 pm »
Just an update to this situation.

My engine now has 7500 miles on it, it runs so well and has noticeably loosened up in the last 2-3k miles. Just to test recently, it has been about 0 degrees celcius, I gave the car 2-3 seconds on glow plugs and it fired first rev and no missing, timing is set to 0.87mm.

To me this says compression is awesome, but I am still going through approx 1 litre every 1000 miles. Apart from a brief period on 10w40 I ran the engine with 15w40 mineral up to 5000 miles and it is now on 10w40 again. No change to consumption between the two oils.

This is exactly the same amount the car was using before engine and turbo rebuild.

Is this issue indicative of a broken oil control ring?

  I have about 1,000 miles since my rebuild... I've not burned enough oil to give me reason to add any yet, and only in the last 100 miles of so has it started running/cranking like it should.  I guess my point is that maybe different engines/builds break in a little different...  I rarely drive in a cruise situation, most of the time I try to make sure it hits operation temps during a run... Good luck on your's breaking in, I can understand why it would un nerve you but I'd bet its just taking its time...

Reply #19January 29, 2013, 04:46:38 pm

745 turbogreasel

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Re: Using oil with 3000 miles on rebuild
« Reply #19 on: January 29, 2013, 04:46:38 pm »
Any chance you are missing the cam splash deflector, or have a busted CDR valve?

Reply #20January 29, 2013, 04:58:15 pm

theman53

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Re: Using oil with 3000 miles on rebuild
« Reply #20 on: January 29, 2013, 04:58:15 pm »
Is is burning from the top of the dipstick or is it burning it no matter what. Just about every 8v VW that I owned would burn from the top of the crosshatch on the dipstick down to about 1/2 way very quickly, then it would sit there until the next oil change. The only one I remember that burnt it continually was the red rabbit I had. It would burn it no matter what.

Reply #21January 29, 2013, 05:20:13 pm

scrounger

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Re: Using oil with 3000 miles on rebuild
« Reply #21 on: January 29, 2013, 05:20:13 pm »
No Rotella? I thought Shell was big in Europe? Might have a different name but it is manufactured by Shell oil as a diesel truck oil.
We have very few diesel cars in the US.
M2 Jetta TD.  Northern Missouri

Reply #22January 29, 2013, 07:00:38 pm

jboogie13

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Re: Using oil with 3000 miles on rebuild
« Reply #22 on: January 29, 2013, 07:00:38 pm »
Changing the type of oil you use every change cant be helping your cause, i would stick with one oil brand/weight until you find some diesel rated synthetic.

Reply #23January 29, 2013, 07:00:59 pm

pointynoggin

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Re: Using oil with 3000 miles on rebuild
« Reply #23 on: January 29, 2013, 07:00:59 pm »
Took me 10000km to stop burning oil.  I drive hard too.
1991 Jetta 1.6TD, Giles Superpump,

Reply #24January 29, 2013, 07:37:09 pm

tyb525

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Re: Using oil with 3000 miles on rebuild
« Reply #24 on: January 29, 2013, 07:37:09 pm »
Using a different brand of oil every oil change has nothing to do with it, as long as they are diesel rated.
2004 Golf BEW, '81 1.6 NA rabbit (soon to be parted out)

Reply #25January 30, 2013, 09:32:27 am

wil892

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Re: Using oil with 7000 miles on rebuild
« Reply #25 on: January 30, 2013, 09:32:27 am »
Basically most oils sold in Europe are diesel rated, but it is a struggle to find 10w30 though .

The cam baffle is present, I haven't checked the operation of the on way valve on top of the cam cover, however it was changed before the engine was rebuilt just to see if that was the problem.

Usually I top it up when it gets to half way on the dipstick hash marks, though I have let it go further before.

It really annoys me having to top up the oil after long journeys, I rebuilt the thing so I wouldn't have to anymore haha! I am wondering if it is going to take longer to bed in, though I have to say from the first start it has never had a problem firing. Compression has always seemed brilliant, just the engine has felt a little looser in the last couple of thousand miles, especially when the engine is cold.
I am so very tempted by M-TDI at the moment due to this problem, but the 1.6 runs so well the oil burning is the only reason to.

I am assuming compression rings are good, however how would I go about testing the oil control rings? check the glow plugs for deposits?
1991 Golf MK2 GTD

Reply #26January 30, 2013, 10:24:46 am

tyb525

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Re: Using oil with 3000 miles on rebuild
« Reply #26 on: January 30, 2013, 10:24:46 am »
No oil leaks? I rebuilt my engine ~4500 miles ago, and it uses just a little bit of oil, like someone already said it goes down to 1/2 on the hashmarks pretty quick but then kinda hangs out there. I do have a slight leak at the valve cover gasket, but I haven't fooled with it yet. I have a cam baffle too.

I first ran 15w40 rotella the first few oil changes (100, 500, 1000) and then I discovered 10w30 was available so now I run that in this colder weather. Mine also starts right up.
2004 Golf BEW, '81 1.6 NA rabbit (soon to be parted out)

Reply #27January 30, 2013, 12:50:13 pm

RabbitJockey

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Re: Using oil with 3000 miles on rebuild
« Reply #27 on: January 30, 2013, 12:50:13 pm »
although this does not solve any ring seating issue(which i think eventually will subside) one thing you can try to help reduce oil consumption would be to add a breather on the front of the block.  I had a rabbit that wouldn't burn oil except for when i would take it on the highway it was like it had a major blow out after a few miles and it blow all kinds of oil into the intake manifold this also would cause run aways.  It eventually ran away too bad so me and dad reringed it and put it back together but the problem was still there.  I added the oil deflector but the problem was still there.  The only solution i found was to find the breather port from 77-82 from the front of the block where the vacuum pump attached, and then i added a hose and routed it to the intake manifold hose and teed it in.  the issue completely stopped and the engine no longer burned oil.  Vw even made a kit to do this on 1.5/1.6 engines, and all the later engines had this similar breather, aaz, tdi, aba and the like.  good luck!
01 Jetta TDI 100% stock daily
81 Rabbit:TDI-M ported head, Frank06 cam, PD intake, hybrid T3 turbo, Renault intercooler, Syl20 11mm pump, light weight fw, and yellow California Clutch clutch kit

Reply #28January 30, 2013, 12:55:10 pm

tyb525

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Re: Using oil with 3000 miles on rebuild
« Reply #28 on: January 30, 2013, 12:55:10 pm »
Interesting that another breather stops runaway and oil consumption, I'd think a breather going from the crankcase to the intake would add even more oil into the intake?
2004 Golf BEW, '81 1.6 NA rabbit (soon to be parted out)

Reply #29January 30, 2013, 01:37:08 pm

scrounger

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Re: Using oil with 3000 miles on rebuild
« Reply #29 on: January 30, 2013, 01:37:08 pm »
As far as breathers go. They can introduce dirt into the crank case. We used to just run them through a long down turned tube onto the ground. That was back in the day when it was socially acceptable to do it.

I still have an older single cylinder motorcycle that I have set up that way. Running a reed valve on the vent port was used to increase the performance by decreasing the pumping losses internal in the engine.
M2 Jetta TD.  Northern Missouri

 

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