Z32 MAF leak (anyone else?)
 

So since I am getting 6psi pressure drop I did a boost leak test today, hooking up a compressor to my charge pipe and blocking off the ends.

I found leaking from my meth injection nozzles (fixed).

But also the Z32 maf was leaking, about a year ago I had fixed this leak, basically the top part of the maf (the square part) seperated from the rest of the body, so I put QuikSteel all over. Now I discovered that it cracked the QuikSteel all around, along the edge, I dont know if i should try a stronge epoxy or what but this sucks.

http://i218.photobucket.com/albums/c...d/CIMG0345.jpg

Avoid the quicksteel. Zip ties and silicon are your best bet. Epoxy would work a well, but no quicksteel.

Yeah the quicksteel is just to brittle. I bought epoxy for plastic, took some pictures of how it looks when you take off the lid if anyone is curious:

http://i218.photobucket.com/albums/c...d/CIMG0350.jpg
http://i218.photobucket.com/albums/c...d/CIMG0349.jpg
http://i218.photobucket.com/albums/c...d/CIMG0351.jpg

I might still put zip ties on it.

I had to take apart the MAF cover on my '93 Altima earlier this year (very similar other than flow rate) to check the lead contacts and all they used (tough to get separated!) was black RTV it looked like. I had some clear silicone laying around so I went with that. I don't think you'll have any troubles with it...

Any higher temp RTV would be great due to underhood temps but with the MAF being where it is, I don't think even regular silicone will break down from heat...


Jeremy

Thanx for the heads up, I am hoping the epoxy I used will work, I also put two zipties around it. If it dosnt work again, i might have to get another maf or do something else. I am going to be pushing 15-20psi through this thing.

maybe its time to go with a MAP sensor and barometric /air-temp

eliminate the MAF all toghter ?

I am having the same problem any updates on how the epoxy is holding up.

Where the MAF's purchased new or used? Curious to see why they are leaking from there.

used

Oh, streetz maf still leaked after trying to fix it.

I dunno if anyone has bought one new, I think they are like 300-400 bucks

That is a lot. Know I see why most get them used. Well you can always buy another used one if you can't fix it.

rtv and zipties have been working so far

After using the plastic epoxy, it hasnt leaked so far.