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I got a replacement PCV valve, pulled out the old one (was really hard). Now, putting the new one in should be simple right? Nope, it doesn't want to go all the way in.
There it is, not all the way in but it seems to be in the hole inside the grommet.
Does this thing go in at an angle? Or do I need to be more aggressive with how I work it in. I really don't want to risk pulling the grommet out and having it collapse and fall into the hole (don' want to cause more trouble). The grommet doesn't look damaged to me.
Last edited by 77ricbaez; June 27th, 2016 at 08:47 PM.
The PCV valve doesn't look like an OEM one, My original was a 90 deg valve. It must be bottoming out on the baffle. I bought an aluminum on that looks the same as OEM. You may want to find a different one.
I bought the summit racing one sum-440308 90 DEG.
Hope this helps some
Eric
Last edited by 76olds; June 27th, 2016 at 09:00 PM.
Reason: PCV PART NUMBER
hm thats weird, the old one that came out was the same one as the one thats in there right now.... maybe it was replaced before with the WRONG one. Still I wonder how they got it in there....
Thanks for posting the pics Eric, they certainly help out. The Dorman Grommet part number helps as well.
You guys are a tremendous help here !!
Cheers
Eric
Thanks for posting the pics Eric, they certainly help out. The Dorman Grommet part number helps as well.
You guys are a tremendous help here !!
Cheers
Eric
You can go into the parts store and ask for a PCV that fits a 442 or a BBC Corvette any year from 67-73. Seems there are quite a few Erics running around here.
Do you have a vacuum gauge ? Sounds like you'll need to adjust the idle mixture screws with the gauge or do it by ear your call . Perhaps the curb idle will need set as well.
Do you have a vacuum gauge ? Sounds like you'll need to adjust the idle mixture screws with the gauge or do it by ear your call . Perhaps the curb idle will need set as well.
strange, the auto parts store told me that this one is the one that fits a 1977 cutlass. Perhaps California uses a different PCV valve? (Darn it California with your emissions restrictions....)
I'm wondering if the previous owner stuck the other PCV valve so deep into the baffle, then needed to adjust the carb to try and compensate. Eric & Eric will know if this happens!!
That PCV is the alternative to the 90 deg. The hose isn't bent too much then collapsing with the vacuum is it?
At this point if the car was running good, I would do what Oldcutlass mentioned. Flush it out with fuel make sure it still rattles and reuse the old one. I've never tried it but I defiantly will with my aluminium one Ill be flushing it out this weekend. Saves a bit of $$
I'm wondering if the previous owner stuck the other PCV valve so deep into the baffle, then needed to adjust the carb to try and compensate. Eric & Eric will know if this happens!!
That PCV is the alternative to the 90 deg. The hose isn't bent too much then collapsing with the vacuum is it?
No it isn't collapsing. Idk but maybe I ended up unplugging a vacuum line on accident when i was putting back the air filter. Improbable though, because I drove it yesterday and it was fine.
strange, the auto parts store told me that this one is the one that fits a 1977 cutlass. Perhaps California uses a different PCV valve? (Darn it California with your emissions restrictions....)
I don't know specifically about the '77s, but the PCV in the picture, with the two hose barbs, is designed to be connected in-line, between two pieces of hose.
The first one, with the flat bottom, is the one that fits into the stock valve cover grommet.
Those grommets got awfully hard over the years, but fortunately they are readily available.
Your local auto parts store ought to be able to order one, or you could get one on line. Dorman 42314.
- Eric
This is likely your issue. The grommet is old you will likely just have to push the correct one in hard to get it in with the worst case scenario the grommet cracks in the process.
Last edited by Qwik71442; June 28th, 2016 at 12:37 PM.
The rattle test is not the end all test for a PCV. Also you should get the exact replacement PCV for the application. Not all are the same. Even though one may fit and look the same they are not all equal. The spring and valve are different for each application. This can cause drivability problems such as too much crankcase bypass causing rough idle due to lean A/F mix.
Fixed it. Hooked up timing light and adjusted curb idle to 770rpm Park and 540-550 rpm D. The idle was a lot smoother. Also the line from the charcoal canister was unplugged, so I pushed that sucker in snugly.
I am using a duralast pcv1125DL valve.
June 27th, 2016, 07:37 PM
The grommet doesn't look damaged to me.
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