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IDI high RPM run away. From crank case vent. 1984 Jetta TD
by
GTFORZA
on 23 Mar, 2013 12:36
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#1
by
damac
on 23 Mar, 2013 13:13
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Are you sure it ran away? If it did how did you stop it?
I had a tired engine in my 85 jetta and I installed that shield, and a self made inline pvc can that had a few stainless steel free flowing scrub balls in it that didn't block airflow. It had a lower center section, hose barb that connects a hose to a nippled fitting where the previous lower blockoff plate is.
I think thats what vw did as a mod to the system.
I checked my setup out and it did catch some oil but it didn't rid the intake of it, and I don't think that is the ultimate goal, I think it has to collect there a little bit.
I now hook up the extra breather hose/shield to my 2 daily drivers with healthy motors just for the hell of it, no catch can on those.
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#2
by
GTFORZA
on 23 Mar, 2013 13:20
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It's not bad run away it won't hardly rev down when its warmed up but with the hose disconnected it fixes it.
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#3
by
745 turbogreasel
on 23 Mar, 2013 14:03
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Every car should have that baffle, but if you have enough blowby to run the car, you probably have bigger fish to fry.
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#4
by
RabbitJockey
on 23 Mar, 2013 16:54
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Add the vent to the front of the block
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#5
by
shwak23
on 23 Mar, 2013 20:50
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Add the vent to the front of the block and then what?
Sent from Outer Space!
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#6
by
ORCoaster
on 23 Mar, 2013 21:05
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Route a hose from the front of the block to a tee that you put in between the hose that goes from the top of the VC to the top of the air cleaner. This allows those gases in the crankcase to get sucked into the air going to the engine and burn em up. It was a modification on later VW's. I nearly did this on mine today but am chasing oil problems first.
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#7
by
RabbitJockey
on 23 Mar, 2013 21:45
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They added it to aaz and tdi. Also there was a kit for older cars u could get from vw an it was obviously an issue since be kept changing the size of the oil drains and addin them
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#8
by
wolf_walker
on 23 Mar, 2013 22:30
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Was the pipe from the vacuum pump on the early cars the same kinda thing?
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#9
by
RabbitJockey
on 24 Mar, 2013 06:12
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Was the pipe from the vacuum pump on the early cars the same kinda thing?
No
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#10
by
GTFORZA
on 24 Mar, 2013 11:08
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does anyone have a pic ov the vent setup
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#11
by
ORCoaster
on 24 Mar, 2013 12:45
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Go to Page 130 of this manual. Save it to some place on your own machine because the information is golden for us old engine abusers.
www.fostertruck.com/Files/VW_diesel_77-83.pdfShows it as you would have it for a stock or additional add on. All you need to do is patch in a hose between your existing vent from the valve cover to the air cleaner box. Simple tee will do it. Then run a hose to the hose that comes from the block to the vacuum pump. Another tee in there and you have simulated the function with the simple addition of two tees and a 2 foot piece of hose.
Ta Da.
Moderator? Can or is this pdf on our stickys? Or FAQ?
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#12
by
bajacalal
on 24 Mar, 2013 13:13
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What to do if you don't have a vacuum pump connection at the block (because you have the new style vacuum pump). Drill and tap the block-off plate, and install a nipple?
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#13
by
ORCoaster
on 24 Mar, 2013 16:52
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If that is your situation then, yep. You could also JY a plate that was used by those of us that had the diaphragm style pump shown in the picture. Drilling your own might allow a smaller diameter fitting and hose to run up to the crossover hose on top. You would just need a different sized barb coming off the larger diameter sized tee.
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#14
by
8v-of-fury
on 24 Mar, 2013 16:57
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Moderator? Can or is this pdf on our stickys? Or FAQ?
Okay.
I was looking at doing a catch can setup however I found a valve cover oil baffle at http://www.partsplaceinc.com/products/product-detail.aspx?keyword=VW+oil+baffle+026-103-547&sku=1196. I think I might try this before I order a catch can from http://fifteen52.us/shop-2/#!/~/product/category=953531&id=3835746. Has anyone used the baffle for the "run on" issue. Thoughts? Opinions?
