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1980 DL 4wd
Posted 01 February 2005 - 01:20 PM
Posted 01 February 2005 - 08:58 PM
Put in a new filter and bought the pcv valve for it .. still have to install it .
Have another question . Looking down from the top of the motor , there is a little device that is off to the upper right hand corner of the air filter cover. it looks like this.
| |== <--- hose with clamp
| |== <--- hose with clamp
hose with clamp
Arrows point to where hoses go in. Whatever it is , It needs a new one. Both nipples at the top where the hoses clamp on are broken inside the hoses. Sorry for my stupidity on this part, but I didn't have my camera to take a picture of it.
Posted 01 February 2005 - 09:02 PM
Forget about it, will make car noisier, but all the more fun
If you are a perfectionist, fix it, but really not having it set up right won't hurt anything.
Though on further though ... the 1980 cars had a coasting bypass system, which might need to be addressed. I can't tell from the image and descriptons what you have well enough to rule that out.
Posted 01 February 2005 - 09:24 PM
Posted 01 February 2005 - 09:27 PM
OK, if you pull it off and it turns out to go nowhere, it is ASV, if it does go into the crankcase, it is PCV - related, and it needs to be fixed.
the hose comming off the bottom of this device goes down towards the crankcase from what it looks like.
Posted 01 February 2005 - 11:01 PM
Posted 02 February 2005 - 12:38 AM
I know what you are talking about is the "Coasting By-Pass System", and if ANY components act up on it you have a MAJOR vacuum leak instantly. It was only on the 1980 models. So if it is the coasting by-pass system is acting up, I would dump it alltogether if emissions allow.
That I believe is the part that generated the vac leak that caused my car to run on 2 cyl only. If it has a big connectoion to the right(drivers) side intake manifold replace or plug it.
Posted 02 February 2005 - 07:47 AM
Posted 02 February 2005 - 10:55 AM
Posted 02 February 2005 - 09:26 PM
Posted 02 February 2005 - 09:29 PM
Posted 02 February 2005 - 09:51 PM
Geezz, I wish I had something that goregous - NO RUST :eek::eek:
OK, that looks like it is related to the PCV system. I assume there is a miniature filter-like thing on the other side of the hose going into the manifold (unless it comes in on the inside of the air filter). You will need to replace it, and you should be able to find it in a junkyard without any problem.
(and an OEM oil cap )
I am not 100% sure as it has been some time since I messed with an EA81/EA71, but I am pretty sure that's what it is, if not please let me know.
Posted 02 February 2005 - 10:11 PM
The hose that leads out of that funny black device at the bottom curves around into the end of the pcv valve. The top tiny hose goes into the breather, the middle hose goes down into the top of the drivers side valve cover.
Posted 02 February 2005 - 10:16 PM
Stuck PCV ......... I am thinking soaking it in WD-40 and/or liquid wrench.
Be sure to take the spare tire out when working on it - makes life easier (I know on EA82's they are easy to get at with the spare tire out)
If above methods don't work, I would try freezing the PCV valve with liquid nitrogen. I would not recomend heating the manifold because I don't like putting that kind of stress on the aluminium, but you might have to as a last resort.
Posted 02 February 2005 - 10:20 PM
Posted 02 February 2005 - 11:33 PM
Posted 03 February 2005 - 10:59 AM
Posted 03 February 2005 - 12:45 PM
As far as liquid nitrogen goes, some metals get VERY brittle at those temps and shatter like glass. Dry ice is usually easier to find and not as extreme if cold is needed.
Put some liquid teflon thread sealer or anti sieze on the threads of the new valve and it will come out easily next time. I just changed the one on my 97 Nissan truck, was located way up behind the alternator and only accessable through the fender well-I'm sure it was orig as it was almost impossible to find let alone change. A soak, heat and soak allowed to break loose with out too much mojo.
Posted 03 February 2005 - 02:33 PM
Posted 03 February 2005 - 09:52 PM
Posted 03 February 2005 - 11:43 PM
Posted 11 February 2005 - 04:24 PM
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