Jump to content
SAU Community

L26 engine replacement

Bohunter
 Share

Recommended Posts

Bohunter Rookie

Bohunter

Posted
Posted

Needing help resolving a problem....I have just inherited a saw bench operated by a 6 cylinder L26 engine and gearbox, but the engine seems seized....I haven't looked into what's wrong yet as I have no knowledge of these engines or gearboxes, but I'd like to know what would take its place if it's a boat anchor...

 

Link to comment
https://www.sau.com.au/forums/topic/474570-l26-engine-replacement/
Share on other sites
GTSBoy Grand Master

GTSBoy

Posted
Posted

Almost any engine will do, so long as it is about the same size/power/torque.  These days, the smart thing to do would probably be to find an old Holden/Ford engine, or maybe an old other Nissan/Toyota of the same sort of vintage.  The reason is that anything much newer will be fuel injected, and then you need high pressure fuel pumps, the ECU, sensors, etc etc all working. Old carby/distributor engines are much simpler for this application.

If it were me though, I'd get an engine from a ute.  2.5 or 3L 4cyl fuel injected.

But see if you can oil the bores and get the old clunker turning first.

Bohunter Rookie

Bohunter

Posted
  • Author
Posted
4 hours ago, GTSBoy said:

Almost any engine will do, so long as it is about the same size/power/torque.  These days, the smart thing to do would probably be to find an old Holden/Ford engine, or maybe an old other Nissan/Toyota of the same sort of vintage.  The reason is that anything much newer will be fuel injected, and then you need high pressure fuel pumps, the ECU, sensors, etc etc all working. Old carby/distributor engines are much simpler for this application.

If it were me though, I'd get an engine from a ute.  2.5 or 3L 4cyl fuel injected.

But see if you can oil the bores and get the old clunker turning first.

I am certainly going to try to get the original engine going as it will be easier than having to source a new one not knowing what sort of Nissan this engine came out of....

Thanks for responding 

Bohunter Rookie

Bohunter

Posted
  • Author
Posted
4 hours ago, GTSBoy said:

Almost any engine will do, so long as it is about the same size/power/torque.  These days, the smart thing to do would probably be to find an old Holden/Ford engine, or maybe an old other Nissan/Toyota of the same sort of vintage.  The reason is that anything much newer will be fuel injected, and then you need high pressure fuel pumps, the ECU, sensors, etc etc all working. Old carby/distributor engines are much simpler for this application.

If it were me though, I'd get an engine from a ute.  2.5 or 3L 4cyl fuel injected.

But see if you can oil the bores and get the old clunker turning first.

What other engines will this gearbox fit if I can't get it going and can't get another L26 ???

GTSBoy Grand Master

GTSBoy

Posted
Posted
6 minutes ago, Bohunter said:

I am certainly going to try to get the original engine going as it will be easier than having to source a new one not knowing what sort of Nissan this engine came out of....

Thanks for responding 

It would have come out of a 260Z or a 260C sedan, seeing as that's about the only cars that had them here in Australia.

2 minutes ago, Bohunter said:

Could you elaborate a little bit more for me please as I'm not familiar with anything Nissan...

Thanks for the input so far....much appreciated...at least I have that engine number you supplied..

Cheers

He's having a joke, because the RB26 is the distant descendant of the L26, and is the motor from the R32-4 GTRs and is the answer to every question (other than those questions to which the answer is LS1 or 2JZ).

 

7 minutes ago, Bohunter said:

What other engines will this gearbox fit if I can't get it going and can't get another L26 ???

Any Nissan L series engine will fit the box.  That's all the 6s and the 4s.  The 4s are a likely to be a little weak for the task.  There were also some other Nissan 4s, with bigger sizes that I think share the same block/box mounting pattern.  I think the Z series are like that, but I'm not enough of an old Nissan tragic to know or care.

I think if you have to change the engine, you would consider changing the gearbox too, because an old manual box for an old Ford/Holden/Nissan/Toyota shitter engine won't break the bank and will vastly open up your options.  To be honest, when you said the engine was running a sawbench, I did not even picture it with a gearbox.  I figured some direct flywheel attachment was in order.

If you really want to power it up, get a 3.8L V6 from an old Commodore, along with the manual box and the necessary fuel injection gear and make it turn the bench upside down on throttle crack!

Bohunter Rookie

Bohunter

Posted
  • Author
Posted
On 7/24/2018 at 1:21 PM, GTSBoy said:

It would have come out of a 260Z or a 260C sedan, seeing as that's about the only cars that had them here in Australia.

He's having a joke, because the RB26 is the distant descendant of the L26, and is the motor from the R32-4 GTRs and is the answer to every question (other than those questions to which the answer is LS1 or 2JZ).

 

Any Nissan L series engine will fit the box.  That's all the 6s and the 4s.  The 4s are a likely to be a little weak for the task.  There were also some other Nissan 4s, with bigger sizes that I think share the same block/box mounting pattern.  I think the Z series are like that, but I'm not enough of an old Nissan tragic to know or care.

I think if you have to change the engine, you would consider changing the gearbox too, because an old manual box for an old Ford/Holden/Nissan/Toyota shitter engine won't break the bank and will vastly open up your options.  To be honest, when you said the engine was running a sawbench, I did not even picture it with a gearbox.  I figured some direct flywheel attachment was in order.

If you really want to power it up, get a 3.8L V6 from an old Commodore, along with the manual box and the necessary fuel injection gear and make it turn the bench upside down on throttle crack!

I pulled the plugs out &  found cylinders 2 & 4 full of water...after blowing out the water I put a cap full of oil in all the cylinders then put tension on the crankshaft and tail shaft/drive shaft with 3 foot stilson and a  fence strainer because I don't have a chain block.... I'll see if anything happens.....

Bohunter Rookie

Bohunter

Posted
  • Author
Posted
On 7/27/2018 at 8:28 AM, GTSBoy said:

You might have to pull it apart and give it a prostitute's rebuild.

That's why I wanted another engine....I really don't want to rebuild an old engine....

I'd really like to find an old car still running for the engine...

But I don't know what car to chase down...

The Bogan Grand Master

The Bogan

Posted
Posted

My 2 cents is anything with a carbie, I've seen a ton of waterpumps running on old 202 motors, hell some old diesel 4 cylinder engine would probably be better torque wise.

You could most likely pick up a old banger for a couple of hundred and then sell the L26 and not lose a cent in the process.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Komdotkom
      Forced Performance Hta Turbos

      By Komdotkom · Posted

      Thanks for posting, your engine bay looks tops. I'm fairly sure you posted the wrong video though, I think you were supposed to upload the one from your "private test road" where it's banging off the limiter with the gate open?
    • MBS206
      Stagea obd II low voltage

      By MBS206 · Posted

      This is something to be careful of. I did a bit of digging on the NM35, as I spend a lot of time on near brand new cars and CANBus related stuff, which uses the same "OBD2" plug for a fair chunk of making my life easy. The NM35, does NOT support OBD2. The data pin is actually on Pin3, which is a manufacturer specific pin, and requires Consult3 to connect to the NM35. Your low voltage, is either because the NM35 doesn't have 12V to the constant power pin on the J1962 (OBD2) connector, OR, it is attempting the standard comms, (CanBus, K Line, etc) and can't see any voltage on those pins. Some people have had success accessing SOME data from the vehicle on OBD2 specification, using a module that supports KPW. My assumption, like Duncan has stated, it will likely actually be JOBD, where there is some cross over with the OBD2 and JOBD standards. Note, lots of "OBD2" dongles, do NOT support KPW, which is what you need for a lot of Japanese vehicles of this era (And even up until recent years!), EG, Subaru, Suzuki, etc.    The end of this thread is probably worth a read, as some people did find a way to get a display up in the NM35 recently, looks like someone implemented all the stuff needed to make it work. (The right protocols).  
    • MBS206
      Crank Motorsports Front Axles

      By MBS206 · Posted

      Depending on the purpose of the car, and how much more fabbing you want to do, and what clearances you have, you could look to raise the motor, which will raise the front diff up. Likely would mean altering the chassis rails etc etc, hence the more fab work you'd need to do. However, this can create issues, not just in clearance with everything fitting under the bonnet, but you've also raised a LOT of weight up in the car, and this will DEFINITELY alter handling characteristics (But, so will how much weight you've already added to the front end). You'll also have to deal with the fact the gearbox to rear diff is now out of alignment too for the tail shaft, and alter the angle of the diff, or deal with a bit of potential vibration. Raising the motor an inch up, is effectively the same as making the whole car sit higher by not lowering it as far. So one inch higher motor, theoretically means you can drop the car an extra inch lower, and maintain the same angles in the CVs. Again, depends on the purpose of the car. If it's a just cruiser on the street car, maybe won't be an issue. If it's meant to be a time attack car, I can see you not wanting to raise the motor. This is just for you to ponder as an idea.
    • MBS206
      NC MX5

      By MBS206 · Posted

      Have you not seen geospy.ai? It can now give GPS co ords to within a metre from a photo, even if it's a random photo you take inside. Supposedly at the moment only the government/law enforcement has access to that... Supposedly...
    • Komdotkom
      Crank Motorsports Front Axles

      By Komdotkom · Posted

      I've got the rear ones, they're certainly beefy. I need to take them to my driveshaft guru to check over, he's very fussy about the quality of components so I'll let you know if they are made of cheese by a blind man.   Are you in Australia? A mate just had a set of EN26 shafts made for his K20 Lotus by our fabricator which were quite cheap (compared to Driveshaft Shop) so if you can procure the CV's and draw what you need he'd make them for ~$800 for the pair.
×
×
  • Create New...