86subaru Posted January 24, 2006 Share Posted January 24, 2006 replaced exhaust gaskets both sides not oem , and passanger side blew out again, had to take it to a shop for the drivers side [ 140 bucks] what would be causing it to keep on blowing out ? 88 turbo a/t full time 4wd , i am afraid if i mess with the passanger side ,the bolts may not go back in tight , should i double them up ? there was a thread some where about napa having a kite ? Quote Link to comment Share on other sites More sharing options...
TomRhere Posted January 24, 2006 Share Posted January 24, 2006 A couple of things that come to mind are; Flange is warped, or otherwise bent so it doesn't sit flush with the head. Slight wash-out of the aluminum of the head in the port area. Your radio isn't turned up enough...... As far as doubling-up the gaskets, don't know how well that would work on a Soob motor, haven't had the need to try it. But I have doubled the gaskets when installing headers on V-8's, never had one blow-out after I started doing that. But,,, I was told that doing so was un-nessecary 'cause they shouldn't leak, "period", and using 2 gaskets was asking for a leak. So much for their therory.... Quote Link to comment Share on other sites More sharing options...
86subaru Posted January 25, 2006 Author Share Posted January 25, 2006 replaced gasket ,bolts went in good , still alittle noise , but ok, Quote Link to comment Share on other sites More sharing options...
torxxx Posted January 25, 2006 Share Posted January 25, 2006 Carquest carries a exhaust gasket that is thicker than any other gasket you get at subaru or napa, online etc. I dont have the part number on hand, but I willl try to get the # tommorow at work for ya. They work great. They have metal on both sides and then fiber in the middle. they are almost a 1/4" thick. Quote Link to comment Share on other sites More sharing options...
thealleyboy Posted January 25, 2006 Share Posted January 25, 2006 Probably got some warpage, Jim... Instead of doubling up the gaskets, you might want to use a hot temp sealer. If that doesn't work, you'll have to grind the surfaces on that y-pipe down smooth. Or change y-pies altogether. good luck, John Quote Link to comment Share on other sites More sharing options...
86subaru Posted January 26, 2006 Author Share Posted January 26, 2006 when you can get the carquest part # that would be great , because wife told me tonight that it is loud again, bolts seem to be drawing outward ,threads are good , , i will get a carquest gasket + hi temp sealant and try it , i have 2 spare turbo pipes , if i change the turbo pipe can i make the pipe bigger ? custom made , will this increase hp ? etc...... Quote Link to comment Share on other sites More sharing options...
gemery10 Posted January 26, 2006 Share Posted January 26, 2006 I had this prob a bit on my 86 L series, mechanic drilled deeper and put in longer bolts Quote Link to comment Share on other sites More sharing options...
subarunuts Posted January 26, 2006 Share Posted January 26, 2006 Tap the threads in the head over to 3/8" - you can do it without pre-drilling, and with some 3/8" bolts it will never come loose. Has worked great for a lot of us. Quote Link to comment Share on other sites More sharing options...
86subaru Posted January 26, 2006 Author Share Posted January 26, 2006 1 bolt is already 3/8 the other 1 is 14mm , should i put washers or lock washers ? and how many ?so what your saying is use 3/8 bolt and thread it by hand and it should go right in ? Quote Link to comment Share on other sites More sharing options...
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