Engine & Drivetrain
Post messages here about engine mechanics, exhaust, intake, etc. Anything to do with the engine system as a whole.
5,574 topics in this forum
-
- 5 followers
- 108 replies
- 10.5k views
while checking the valve lash, I noticed my timing chain guide was fubar, it was way down and not in contact with the chain. I have the correct bolts on the thermostat housing, and I have no idea how long it has been like this. So the question is, do I pull the engine or fix it with the engine in place? It looks like I may have enough room to remove the cover and do the work after removing the rad, but I have the cherry picker, so was thinking just pull it and have easy access. I will know better what happened once I get it off, to see if there are any missing bolts etc.... that may be down in the crankcase. If that is the case I will have to pull it off as well. Come to …
Last reply by Patcon, -
-
- 2 followers
- 5 replies
- 1.2k views
I had my engine and transmission out of my Jan/1971 240Z for its restoration. While I had them out I changed the seals on the transmission. Afterwards, I still had a leak at the rear seal and went to a local shop to have professional install one in case I did something wrong. Weeks later it is still leaking. Anyone have some experience with this seal? Is there a technique I missed? Is it just two bad seals in a row?
Last reply by kunzma, -
- 6 followers
- 10 replies
- 2.5k views
I believe have a non close ratio 5spd and know that I have 3.54 rear end in my car currently. I don't cross it but it does see some highway cruising and 5th seems a bit short. As part of an engine upgrade (see CO posts on F54/P90 build) I also acquired what should be a close ratio 5spd and 3.9 rear from an 83 non-turbo. I was thinking that I may run the close ratio 5spd but keep the 3.54 rear end - effectively making all of the gears about 10% longer. They way I see it the acceleration out of first would be a bit slower but everything else doesn't much matter as long as you wind it out 10% further. Has anybody driven this combination or does anybody have thoughts…
Last reply by LeonV, -
- 5 followers
- 56 replies
- 9.6k views
I broke my gearbox, 5-speed. Lots of used 4-spd for sale around here, (northern Europe) but very few 5-spds. My 240z has an L28et engine, so the transmission should be BW T5 like in 280zx turbo.. But we don't have many of those here... The question is: is there a difference in the strenght between Datsun original 4- and 5-speed transmissions? And: I believe that many who have tuned up their 240z engines have still the original tranny, not something stronger like BW or ZF (from BMW or else)? How much torque do Datsun 240Z transmissions handle?
Last reply by jonbill, -
- 4 followers
- 14 replies
- 2k views
My son and I bought a rebuilt n42 head. We have replaced the head, but when we went to install the cam sprocket, we noticed the end of the cam is different. The first Pic is a pic of the head we took off and the second is of the head we put on the car. The place where the sprocket mounts is different. Got any ideas on how we should tackle this problem? camaro-guy
Last reply by Dave WM, -
- 5 followers
- 17 replies
- 2.8k views
So I’ve had my Z since 1980 and in that time, it’s had 4 colors, original white, Porsche Guards Red, Chevrolet Hugger Yellow and now back to white. I recall 4 engines. The original, two that I built (stockish with compression bump and balancing) and now the Rebello motor. The motor is still out because I decided to repaint the engine compartment and it exceedingly tedious. I’m down to the firewall now though, so we are getting close. My question is, can I stab the engine in with the headers and intake installed? I’ve always done them after it was in. Pictures for interest...
Last reply by Captain Obvious, -
- 1 follower
- 2 replies
- 913 views
I planned to replace synchros this weekend, but found a mangled locking plate behind nut on "output shaft". I'm guessing this plate used to have a tab - the one I found stuck to the magnet on drain-plug. The locking plate is simply not available. The nut is a bit loose but mangled plate prevents it from turning. I'm thinking of just putting everything back together, as is, but wondered: perhaps I can purchase another nut and lock the two together? I also read that someone FOUND this nut "lock-tight"ed. Any suggestions?
Last reply by Oceanzide, -
- 5 replies
- 595 views
Cool Trick for a new must have tool: Induction Cooker!
Last reply by Zed Head, -
- 1 follower
- 7 replies
- 1.7k views
I am attempting to tighten the shift linkage on my early '71. I had some new nylon bushings in "stock" so I thought I'd use those. When I got to the linkage, there was no match with the bushings. So, I think I have a Type A transmission. Can someone tell from the picture below? Also, how do I fix this linkage so I don't have to stir to find the gear? Just a different bushing? Thanks
Last reply by Zed Head, -
- 1 follower
- 2 replies
- 877 views
We purchased this resurrection project knowing it had been sitting since 1996, and the sit time was not too friendly to our Z. Besides being rusty in the pulley grooves, I am a bit concerned about the rubber binding material on the balancer. The ones I have found do not look like the original and the diameter specs listed do not match mine. There are a few specialists rebuiding the balancers with new bonding processes. Any suggestions from the Z experts will be greatly appreciated. Based on the number of harmonic balancers we sell at our parts store for much newer vehicles, my previous belief of them being a part that never goes bad, has been erased. Being over 40 y…
Last reply by One Way, -
- 1 follower
- 27 replies
- 13.7k views
Hey everyone, I've combed through the archives looking for directions on swapping out the speedo pinion gear, and I found some information but I'm a bit nervous taking on this task as I don't want to wreck anything (cable, gear, etc.) as the parts are so hard to find. I have a 1983 5-speed in my 1971 Datsun, and I finally finished the 4.11 LSD diff (which works great). The speedo gear I have now is 20 tooth, and it's about 10% off, so I'm moving to the 21-tooth version (they don't make the 22 anymore). (FYI, when I contacted Nissan to order the part, there were only 2 left in the country and it's being discontinued, so if you need one, now's the time to get it!) My plan…
Last reply by John B, -
- 6 followers
- 28 replies
- 3.2k views
I'm swapping out my wide ratio 5-speed for a close ratio transmission. I'm curious to know what, if anything, I can tell about the condition of the replacement transmission prior to installing it. I'll have a choice between a number of loose transmissions and obviously want to make the best choice I can.
Last reply by cgsheen1,
-
Recently Browsing 0 members
- No registered users viewing this page.
Wilbur
