MPGs run, Aspire SE

[TominMO]

Me too! It's here now.

[TominMO]

Minor glitch, will delay me a few days.....ordered eight new DNJ lifters from Rock Auto to replace mine.

Matt told me to use a vise to bleed down the valve lash adjusters (lifters). I planned to do that tmw, just before installing the new cam. So today I was fooling around with my JY spare Aspire head, the one the cam came out of for Matt to work on, and checked the lifters. Three had no oil in them at all, i.e. I could compress them with two fingers and there was only spring pressure; two were rock-hard, and would not compress with a large pliers; and three were in the middle (would compress with pliers). So I did some research on lifters, and from what I can figure out;
the three easy ones are bad because they will not pump up to proper pressure, and open the valve enough--they should be tossed;
the two hard ones will not give the valve enough slack, and should also be tossed;
the three middle ones are working properly.

This JY head has about the same mileage as my Aspire's, ~160K. So I'm thinking I will discover a similar range of function with the ones currently in my Aspire's head. And if I mixed-and-matched lifters to get eight good ones (hopefully), there is no telling how long they are still good for. Accordingly, I ordered new lifters, and will keep the old ones as spares. I will try to clean them, free up the hard ones, fill 'em with oil, and see what happens. Maybe I can revive some.

BTW all B-series motors use the same lifters (except of course 88-89 Festys).

[getnpsi]

Good to know. Do old f motors share them? I found a bag of new parts in a 626 at the junkyard and pocketed them. Or maybe they were viton seals grr

[Zanzer]

The SOHC motors use the same HLA's, the DOHC's are different. There's a lot of other manufacturers that use the same HLA as the Mazda SOHC as well. There used to be a list on the site here somewhere.

[jason_]

I have a lifter that'll pump up, then collapse. Sometimes enough to tick, other times to actually miss fire. And then occasionally happen while driving, just enough to hear it through the intake, when wot it'll sound like a bullfrog.

So, I know it's an intake, been waiting for its random early morning collapse bad it'll misfire for 2-3 mins, then magically pump up. Before it does that kill ignition and check plugs. Been chasing it for 3 years. But 90% of the time it doesn't happen, so, I've been just letting it be until I know I can catch it red handed instead of replacing them all.

Sent from my rooted HTC Supersonic using Tapatalk 2 Pro

[TominMO]

The SOHC motors use the same HLA's, the DOHC's are different. There's a lot of other manufacturers that use the same HLA as the Mazda SOHC as well. There used to be a list on the site here somewhere.

The Rock Auto list (when you click on Info for the part itself) didn't mention SOHC vs. DOHC, but that's good to know.

[TominMO]

I have a lifter that'll pump up, then collapse. Sometimes enough to tick, other times to actually miss fire. And then occasionally happen while driving, just enough to hear it through the intake, when wot it'll sound like a bullfrog.

So, I know it's an intake, been waiting for its random early morning collapse bad it'll misfire for 2-3 mins, then magically pump up. Before it does that kill ignition and check plugs. Been chasing it for 3 years. But 90% of the time it doesn't happen, so, I've been just letting it be until I know I can catch it red handed instead of replacing them all.

Sent from my rooted HTC Supersonic using Tapatalk 2 Pro

I decide to replace them all because I didn't want to have to go back in there later, and now will have known-good lifters. No point buying a cam if the lifters can't do their job. Plus now I have some spares if needed, for my B6.

[jason_]

I decide to replace them all because I didn't want to have to go back in there later, and now will have known-good lifters. No point buying a cam if the lifters can't do their job. Plus now I have some spares if needed, for my B6.

Everyone has their reasons.

I have an extra used set thsts unknown. When I did block and head swap I used previous set, didn't have to clean, and knew operational history.

I'd buy a new set, but that's gas money for like 2 months of work and back!

I'm tighter then skin on a grape when it comes to vehicles. I dump as little money into them as needed.
401k and savings I can live off of. Ha.

Anyways, I'm sub'd on this, waiting on data.

Sent from my rooted HTC Supersonic using Tapatalk 2 Pro

[TominMO]

Went out and started the process of swapping in the cam. Today's agenda was stripping it down. I pulled everything but the cam and rocker arms, that just takes a couple of minutes. I am not gonna wait for the new HLAs; I have six from my JY head, and the ones in the Aspire are not ticking, so what the heck. I'll have it back together on Thursday.

In the process I discovered how rusty the metal battery support (under the plastic tray the battery sits in) was, so now I have to deal with that, i.e. wait for paint to dry. Sanded and primed it today, topcoat tmw, stick it in the car on Thursday. I'll have it all done for a test run on Friday, John willing.

[mikeyjd]

Went out and started the process of swapping in the cam. Today's agenda was stripping it down. I pulled everything but the cam and rocker arms, that just takes a couple of minutes. I am not gonna wait for the new HLAs; I have six from my JY head, and the ones in the Aspire are not ticking, so what the heck. I'll have it back together on Thursday.

In the process I discovered how rusty the metal battery support (under the plastic tray the battery sits in) was, so now I have to deal with that, i.e. wait for paint to dry. Sanded and primed it today, topcoat tmw, stick it in the car on Thursday. I'll have it all done for a test run on Friday, John willing.

"One thing leads to another..."

[Pu241]

In the process I discovered how rusty the metal battery support (under the plastic tray the battery sits in) was, so now I have to deal with that, i.e. wait for paint to dry. Sanded and primed it today, topcoat tmw, stick it in the car on Thursday. I'll have it all done for a test run on Friday, John willing.

He is!

I will make it so!

[TominMO]

John made it so!

Got her all buttoned up yesterday, but had to wait for paint to dry on the battery holder thingy. Put that and the battery in today, fired it up; after the lifters had mostly quieted down I went for a drive. Timing is set at ~13 BTDC. Matt had expressed concern that I might lose a little power with this cam, hence the 13 degrees. According to the butt dyno, I haven't lost anything, she feels quite peppy. I'll drive around a little more today, pull the plugs to make sure everything's OK, then in the morning fill it up with 91 octane (because of the timing advance) and take it for an MPG run.

[Pu241]

Happy to help!

Do you think you need 91 octane or would it be worth a shot using 89?

Probably best to baseline on 91 then see if possible that 89 is acceptable.

[TominMO]

Happy to help!

Do you think you need 91 octan or would it be worth a shot using 89?

Probably best to baseline on 91 then see if possible that 89 is acceptable.

With 13 degrees of timing I will try 91 first, then 89. Matt said I might even be able to use 87 with advanced timing, but we'll see.

[TominMO]

Pulled a couple of plugs to see how things were going. I've put about ten miles on this setup. The plugs looked like they were burning the fuel very efficiently--very light tan, not even any grey on one. Possibly too lean? I might end up going back to 10 degrees, but will test tmw with 13.