eaglescout526 Posted April 17 Share Posted April 17 I need your help! It came to me that should compile a thread of 2.5L specific DIY stuff and I just finished perusing through the DIY and found a couple I’d like to see if anyone did or can update with pictures. The two in question: There might be another aluminum cover DIY but I couldn’t find it. I plan to try to make a couple more at some point like TPS adjustment and better understanding of the vacuum for 87-90 years. Your help will be greatly appreciated as one is pretty unique and not done commonly and the other seems to be common enough to warrant some updating. Link to comment Share on other sites More sharing options...
GonzoTheGreat Posted April 17 Share Posted April 17 Do you want commentary here, on those threads specifically, or otherwise? The radiator one is way off. Also the end result doesn't really seem necessary, I kind of wish I'd left mine stock. Link to comment Share on other sites More sharing options...
eaglescout526 Posted April 17 Author Share Posted April 17 18 minutes ago, GonzoTheGreat said: Do you want commentary here, on those threads specifically, or otherwise? The radiator one is way off. Also the end result doesn't really seem necessary, I kind of wish I'd left mine stock. Yes commentary welcome here! That way we can seem to include that radiator mod or not. Link to comment Share on other sites More sharing options...
GonzoTheGreat Posted Friday at 01:44 AM Share Posted Friday at 01:44 AM On 4/17/2026 at 1:35 PM, eaglescout526 said: Yes commentary welcome here! That way we can seem to include that radiator mod or not. Ok, the part about painting the studs, marking the header panel radiator support, and drilling 6 holes is wrong. I read this walk-through, and tried to do that part before realizing that those studs are meant to mount the top isolators, and the upper radiator support has holes, pre-drilled, for the two isolator studs (at least it did in my 89). Also the 6 little studs will never reach the the top crossmember if you install The bottom isolators and drop the radiator into the punched holes in the lower radiator support. Also, if you only keep the stock mechanical fan, with no shroud, you're not going to move enough air across the radiator at low speeds. I installed a stock, 97+ electric fan with a sensor in the lower radiator hose. The electric fan proved incompetent on very hot days under heavy load, so had to add a second one on a toggle. In the end I found a system that works, but it begs the question, was there actually a problem here in the first place? In hindsight, I would prefer to have a well-maintained stock system over this expensive re-invention of the wheel. Link to comment Share on other sites More sharing options...
eaglescout526 Posted Friday at 02:05 AM Author Share Posted Friday at 02:05 AM Good to know. We can toss the 4.0 radiator out. And honestly crown offers one more core for the factory replacement radiator that does pretty damn well. So I now need the aluminum valve cover. Link to comment Share on other sites More sharing options...
JYau Posted Friday at 11:59 AM Share Posted Friday at 11:59 AM I've done the aluminum valve cover mod. Pretty straight forward but I can add some better pictures here. I would recommend the blue Fel-Pro gasket, it seems to be very high quality and I haven't had anymore leaks. Link to comment Share on other sites More sharing options...
OldSch88L Posted 21 hours ago Share Posted 21 hours ago Hey buddy!!! I haven't been here in a couple of years since I moved and bought my first house, which has been getting all my attention... Anywho, I got back here today trying to find an old post I saw a while back about TJ clutch master cylinders and stumbled upon your post while trying to catch up on what's new here... So here's some pics for ya! It's a shame because I think the original composite valve cover looked better IMO, but at least my engine block stays dry now... The hoses are kinda just thrown together to make it work for the time being, because they looked tired and already planned to re-do them all anyways with new stuff. Hope this helps!!! Link to comment Share on other sites More sharing options...
eaglescout526 Posted 20 hours ago Author Share Posted 20 hours ago 40 minutes ago, OldSch88L said: Hey buddy!!! I haven't been here in a couple of years since I moved and bought my first house, which has been getting all my attention... Anywho, I got back here today trying to find an old post I saw a while back about TJ clutch master cylinders and stumbled upon your post while trying to catch up on what's new here... So here's some pics for ya! It's a shame because I think the original composite valve cover looked better IMO, but at least my engine block stays dry now... The hoses are kinda just thrown together to make it work for the time being, because they looked tired and already planned to re-do them all anyways with new stuff. Hope this helps!!! It does also you’re firing order is wrong. Link to comment Share on other sites More sharing options...
OldSch88L Posted 20 hours ago Share Posted 20 hours ago 10 minutes ago, eaglescout526 said: It does also you’re firing order is wrong. 11 minutes ago, eaglescout526 said: It does also you’re firing order is wrong. How'd you figure that? It's 1-3-4-2 isn't it? Link to comment Share on other sites More sharing options...
eaglescout526 Posted 20 hours ago Author Share Posted 20 hours ago 15 minutes ago, OldSch88L said: How'd you figure that? It's 1-3-4-2 isn't it? Oh shoot! I had to look again. My bad. The blue wires, 4 and 3 looked like they were wired wrong and threw me off. Link to comment Share on other sites More sharing options...
OldSch88L Posted 20 hours ago Share Posted 20 hours ago 15 minutes ago, eaglescout526 said: Oh shoot! I had to look again. My bad. The blue wires, 4 and 3 looked like they were wired wrong and threw me off. I almost wanted you to be right, because maybe it would've had explained it's lack of "oomph"!!! Link to comment Share on other sites More sharing options...
eaglescout526 Posted 19 hours ago Author Share Posted 19 hours ago 19 minutes ago, OldSch88L said: I almost wanted you to be right, because maybe it would've had explained it's lack of "oomph"!!! Lol!! My next question would’ve been if you have been lacking power lately. But I appreciate the pics, I’ll update that thread with your pics. Link to comment Share on other sites More sharing options...
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