The Enemy (Lost Motion Springs) Revealed - Pic.
#1
The Enemy (Lost Motion Springs) Revealed - Pic.
Well, I've got my head off so I figured I show you guys a picture of the LMS.
They're the little springs on the bottom in the rocker arm assembly that support the vtec lobe rocker arms. I showed my old man (used to working on late model small block v8s) the assembly and he asked if it came from a space ship...
Aww look at those little sleeves/pistons, aren't they cute? I have to admit the stock sleeves are thicker than I thought they would be. You can see where the HG blew out between cylinder 1&2. Luckily no damage to the block deck. However, I'm probably just going to buy a new engine since they are so cheap ($500). There are plenty of engines out there in salvage yards form people who have totalled their fit, but no demand. I'm probably the only person in the country looking for one. The engines are just too new. Bad for them, good for me.
They're the little springs on the bottom in the rocker arm assembly that support the vtec lobe rocker arms. I showed my old man (used to working on late model small block v8s) the assembly and he asked if it came from a space ship...
Aww look at those little sleeves/pistons, aren't they cute? I have to admit the stock sleeves are thicker than I thought they would be. You can see where the HG blew out between cylinder 1&2. Luckily no damage to the block deck. However, I'm probably just going to buy a new engine since they are so cheap ($500). There are plenty of engines out there in salvage yards form people who have totalled their fit, but no demand. I'm probably the only person in the country looking for one. The engines are just too new. Bad for them, good for me.
Last edited by Lyon[Nightroad]; 04-18-2011 at 05:18 AM.
#4
Wow, really? I wish more serious tuner-types would catch on to what's going on with these little cars, and the affordable performance that can be gotten out of them. Maybe the B-spec series will help the Fit gain popularity among enthusiasts out there. If gas prices don't go down, you can bet on it.
#5
If you're gonna keep the long block send it to John @ Advanced! Or maybe I'll take it there for ya since they know me and we'll see about getting it decked, milled and O-ringed.
Then all you need to do is drop in say.. an MLS HG and a Mahle/K1 bottom end then boost to the moon!
Then all you need to do is drop in say.. an MLS HG and a Mahle/K1 bottom end then boost to the moon!
#6
If you're gonna keep the long block send it to John @ Advanced! Or maybe I'll take it there for ya since they know me and we'll see about getting it decked, milled and O-ringed.
Then all you need to do is drop in say.. an MLS HG and a Mahle/K1 bottom end then boost to the moon!
Then all you need to do is drop in say.. an MLS HG and a Mahle/K1 bottom end then boost to the moon!
#7
SSSSSOLLLDDDD! Just bought my $500 engine. Picking it up tomorrow. Gotta drive up to wisconsin. 2009 09 Honda Fit Engine 1.5L Motor 18K L15A7 OEM LKQ | eBay
#12
For a 2009 and up car that is a fantastic deal! GD3 engines are going for $700-1k for a good one!
For that exact reason though I hope tuners don't pick up on it, now bear with me on this... unless you want to spend $5k on a longblock.
How are you gonna go about this? Keep the new engine as a back up for drop in when needed and just deck the old block, ring it and slap a new HG on? BLOW ONE OF THESE SUCKERS UP!
We need to find the limit of those twiggy con-rods some how! They are forged after all lol
But check this out, one can, and I recently did, buy a long block 6-bolt 4G63T with a (Kiggly main bearing girdle!) for less than the price of a carton of smokes.
$40 (rotating assembly, balance shafts, main seal, oil pump and oil squirters out for machine work):
Helps that these motors are two decades old based of an early 70s Mitsu Sirius family engine that stayed in production through world rally homologation requirements of course...
Anywho.. let me know if you need a second set of hands when it comes time to drop the motor in!
But the L15A7 stands a chance to become just as prolific now that they can be used in b-spec and formula racing!
For that exact reason though I hope tuners don't pick up on it, now bear with me on this... unless you want to spend $5k on a longblock.
How are you gonna go about this? Keep the new engine as a back up for drop in when needed and just deck the old block, ring it and slap a new HG on? BLOW ONE OF THESE SUCKERS UP!
We need to find the limit of those twiggy con-rods some how! They are forged after all lol
But check this out, one can, and I recently did, buy a long block 6-bolt 4G63T with a (Kiggly main bearing girdle!) for less than the price of a carton of smokes.
$40 (rotating assembly, balance shafts, main seal, oil pump and oil squirters out for machine work):
Helps that these motors are two decades old based of an early 70s Mitsu Sirius family engine that stayed in production through world rally homologation requirements of course...
Anywho.. let me know if you need a second set of hands when it comes time to drop the motor in!
But the L15A7 stands a chance to become just as prolific now that they can be used in b-spec and formula racing!
Last edited by DiamondStarMonsters; 04-22-2011 at 01:17 AM.
#13
Verrry interesting......these engines are used in b spec racing, right? Wonder what LMS they have? And can somebody in b spec racing get ahold of a set of the new LMS, and that neat set of spacers to hold the rocker assemblies together?
I'd just looove to do this silly LMS recall myself, if I could get the springs and the tools.
geo
I'd just looove to do this silly LMS recall myself, if I could get the springs and the tools.
geo
#15
a 50/50 alloy of Costlium and Unobtanium. Both rare and expensive.
But can they be found, as well as the tools?
geo
#17
hmmmm....had not thought of Bernardi....bought a few things there and they seem pretty good. I have the hand tools but would like to have those little rocker arm assembly holders that are mentioned in the service bulletin. Might give 'em a try....
geo
geo
#18
The rocker arm assembly holder is that big plate in my top picture holding all rocker arms together. It is just bolted on to the head which you can also see on the top picture. It's actually a very nice easy to work with setup. The spring just pop right out of the holder (which is actually the rocker arm holder itself.
#19
No, I meant those 4 pairs of holders and spacers that are used in the LMS replacement procedure as the whole rocker assembly is being taken apart to get at the LMS. The one bolt holding the shaft to the bridge is removed, and then these spacers are inserted at one end as the shaft is pulled out the other way. Keeps each cylinder's rockers rockers, spacers, etc all together as a unit. When the shaft is all the way out, you have 4 subassemblies and the LMS are the only things left in the bridge. It's shown in the service bulletin (page 3) and called "rocker arm holder set".
geo
geo