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Old 12-15-2012, 02:44 PM   #1
JustJeff
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^ Thanks Ted
The problems were my own dumb fault. I didn't setup my efan properly and it cost me. Lesson learned.

I need to test a few things before I pull the engine. The engine started behaving strangely in that it bogs down when boost pressure builds. The more quickly boost is building the worse it bogs down. However this is a sudden change. It was building what boost I'd allow the engine to see just fine. I've got my MBC set to zero so it's purging as much pressure as the wastegate will allow. It never had this problem till just recently and suddenly.


I'm hoping it's fouled plugs. My plugs are fouling so the engine runs great when fresh ones are put in and within a couple weeks you can hear and feel a change in the engine as they foul. Any other thoughts on what it could be? TPS, timing...anything else anyone can think of?

Other little things I've thought of for my shopping list:
Because I'd rather replace the $3 part than pull my oil pan
http://atkinsrotary.com/store/70-95-...10-14-171.html

Because I swapped a known good level sender and did not replace the o-ring...which led to an annoying leak.
http://atkinsrotary.com/store/81-95-...26-10-T11.html

I'm also giving thought to pulling only the engine and leaving the tranny. Reason being, I have Royal Purple fluid in the tranny. I can drain it and save it, but in that process some will be lost and I don't want to buy another bottle simply to top it off. Seems that the engine pull would be much easier, but putting it in will be tougher. Any thoughts from more experienced members?
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Take your pathetic ultimatums and stupid "AOL" comments and shove them straight up your ass, you little punk. You avatar is gay as well....

1990 Vert/ S5-JDM 13BT (rebuilt but with issues I'm working out). Rtek N370 1.7, 550/800 injectors, FD fuel pump, RB REV TII exhaust, Tein springs and Illuminas

Last edited by JustJeff; 12-15-2012 at 02:48 PM.
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Old 12-16-2012, 06:52 AM   #2
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Quote:
Originally Posted by JustJeff View Post
I'm hoping it's fouled plugs. My plugs are fouling so the engine runs great when fresh ones are put in and within a couple weeks you can hear and feel a change in the engine as they foul. Any other thoughts on what it could be? TPS, timing...anything else anyone can think of?
Hard to say, but to cause spark plugs to foul that badly and that quickly means something is really out of whack.
The engine will run with quite a bit more fuel that needed and timing off by as much as 10-degrees (or slightly more) without giving a hint of something is wrong.
You're not running really cold plugs - colder than 9's?


Quote:
I'm also giving thought to pulling only the engine and leaving the tranny. Reason being, I have Royal Purple fluid in the tranny. I can drain it and save it, but in that process some will be lost and I don't want to buy another bottle simply to top it off. Seems that the engine pull would be much easier, but putting it in will be tougher. Any thoughts from more experienced members?
I'm one of those weird ones that prefer to leave the trans in place...
Would love to have the space and equipment to handle both the trans and the engine install at the same time, but in most cases, this is the opposite.
With the aide of an engine tilter (this REALLY helps), installing the engine back into the trans usually takes me about 15 minutes.
The PITA part is alternating the trans bolts between top and bottom - you end up with quite a work-out!


-Ted
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Old 12-16-2012, 01:22 PM   #3
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Quote:
Originally Posted by RETed View Post
Hard to say, but to cause spark plugs to foul that badly and that quickly means something is really out of whack.
The engine will run with quite a bit more fuel that needed and timing off by as much as 10-degrees (or slightly more) without giving a hint of something is wrong.
You're not running really cold plugs - colder than 9's?
-Ted
I've alternated between stock 7 and 9's and using all 9's. IIRC it is stock 7 and 9s in there now. The couple of weeks thing on the plugs fouling may have been an exageration. The car has sat a couple months without driving it so it's my best recall. But over time I can hear the exhaust tone change as they foul. I'm going to replace them just before i pull the engine to see how that effects the boost problem. I'll get some pics of the plugs and post them. In fact, I'll get the plugs today.
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Originally Posted by yzf-r1
Take your pathetic ultimatums and stupid "AOL" comments and shove them straight up your ass, you little punk. You avatar is gay as well....

1990 Vert/ S5-JDM 13BT (rebuilt but with issues I'm working out). Rtek N370 1.7, 550/800 injectors, FD fuel pump, RB REV TII exhaust, Tein springs and Illuminas
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