WJM Posted April 24, 2005 Share Posted April 24, 2005 On SPFI, MPFI and MPFI+TURBO....which side has gone first? I've had 2 1-3 side failures that I can remember. The other times I cant remmeber what side went... Quote Link to comment Share on other sites More sharing options...
Vanislru Posted April 24, 2005 Share Posted April 24, 2005 On SPFI, MPFI and MPFI+TURBO....which side has gone first? I've had 2 1-3 side failures that I can remember. The other times I cant remmeber what side went... 1-3 twice Quote Link to comment Share on other sites More sharing options...
Caboobaroo Posted April 24, 2005 Share Posted April 24, 2005 1-3 on my RX but I also had 2-4 gone as well. Both could be seen clear as day so without a doubt, they were both blown. Quote Link to comment Share on other sites More sharing options...
phishy75 Posted April 24, 2005 Share Posted April 24, 2005 1-3 x 2 as well Quote Link to comment Share on other sites More sharing options...
WJM Posted April 24, 2005 Author Share Posted April 24, 2005 ok, that settles it then. Quote Link to comment Share on other sites More sharing options...
iluvdrt Posted April 24, 2005 Share Posted April 24, 2005 1-3 here as well Quote Link to comment Share on other sites More sharing options...
carfreak85 Posted April 24, 2005 Share Posted April 24, 2005 Well that is the side that is right next to the turbo, so the extra thermal load would easily do those cylindars in. This summer, I plan on getting a really nice heat sheild for the turbo in my wagon to keep the heads happy. Quote Link to comment Share on other sites More sharing options...
Snowman Posted April 24, 2005 Share Posted April 24, 2005 What about on n/a cars? Any definitive trend there? Quote Link to comment Share on other sites More sharing options...
WJM Posted April 24, 2005 Author Share Posted April 24, 2005 im beginning to think it has a little more do to with the fuel system maybe.... I dont see how external heat woudl do in a head gasket. running lean on that side I could see it... Quote Link to comment Share on other sites More sharing options...
Craven Posted April 24, 2005 Share Posted April 24, 2005 Well that is the side that is right next to the turbo, so the extra thermal load would easily do those cylindars in. This summer, I plan on getting a really nice heat sheild for the turbo in my wagon to keep the heads happy.Could it be the hot oil from the turbo dumping into that head, making the difference? Quote Link to comment Share on other sites More sharing options...
Snowman Posted April 24, 2005 Share Posted April 24, 2005 The oil goes into the bottom of the head just before drainging down into the pan, so I really doubt that would make much of a difference. Quote Link to comment Share on other sites More sharing options...
WJM Posted April 24, 2005 Author Share Posted April 24, 2005 possibly the extra coolant flowing out of the head and into the turbo...therefore the head gets less coolant flow...?? Quote Link to comment Share on other sites More sharing options...
tizzle Posted April 25, 2005 Share Posted April 25, 2005 I figure that the extra heat on that side combined with the apparent lack of fuel to #3 in a the normal fuel rail system would make that side more prone to problems. But you have already done a parrallel fuel rail modification right? Quote Link to comment Share on other sites More sharing options...
WJM Posted April 25, 2005 Author Share Posted April 25, 2005 Ive got the block for the system and an external regulator. All i need to do is get some barbs and some hose and do the install. its the same one I had on the wagon, and I need to adapt it to the RX before May 24th...So ive got plenty of time right now. Quote Link to comment Share on other sites More sharing options...
MorganM Posted April 25, 2005 Share Posted April 25, 2005 Right head; SPFI. Drivers side was fine :-\ Quote Link to comment Share on other sites More sharing options...
All_talk Posted April 25, 2005 Share Posted April 25, 2005 ...the apparent lack of fuel to #3 in a the normal fuel rail system would make that side more prone to problems... I have hear this theory several times before, but I just don’t see it, given the fuel systems layout it seems that #1 would see the most pressure drop if any exists. I’m betting in stock form there is very little pressure difference throughout the system, with mods who knows, some testing would be in order (easy enough with a fuel pressure gauge teed in at the regulator). There are a couple of thing that could be part of the “hot #3 problem”. One is simple geography, #3 is the furthest from the water pump and I see no provision for forcing more flow in its direction, this flow would also spend more time in the block with more pre-heating before reaching the head area. Second possible factor, there is an area in the block adjacent to the #3 cylinder bore that provides access to one of the case bolts. The area closes off the water jacket around the cylinder and could create less cooling. Though I doubt this would have a huge affect, as the cylinders have interrupted water jackets in the center anyways (Siamesed) and most of the heating is in the head. Just some thoughts Gary Quote Link to comment Share on other sites More sharing options...
Flowmastered87GL Posted April 26, 2005 Share Posted April 26, 2005 If I recall my problem has always been the #2 cylinder. :-\ Quote Link to comment Share on other sites More sharing options...
Snowman Posted April 26, 2005 Share Posted April 26, 2005 Sooo, where on the gasket/head did it actually blow out? I'm curious as to whether there's a specific PLACE that is prone to leakage. Quote Link to comment Share on other sites More sharing options...
2alaskasubee Posted April 26, 2005 Share Posted April 26, 2005 I've lost the 1-3 side also. The rupture was on the lower left corner ( if you are standing by the pass wheel facing motor). I have also had the head cracked enough on #3 in exhaust valve area to get really good coolant flow into exaust. Bond woulda been proud of the smokescreen. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.