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
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rotella t4 oil 1 2 3
by kully 560- 5 followers
- 29 replies
- 16.2k views
spoke to Rotella this week and they suggest to now use there Rotella t4 10w-30w diesel oil in the z cars because of the higher 1200 ppm zinc content,that is better to use with the overhead cams. it is because the new diesel engines do not need as much cleaning agents anymore with the new emission they carry. just would like to see the forum thoughts.
Last reply by Reptoid Overlords, -
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- 1 follower
- 2 replies
- 957 views
Hey guys, any tips on making these brake tubes, I’ve tried to make one but I just couldn’t figure out how to make the bends properly. I have a pipe bender but it does not make sharp enough bends. Any other ways? I have a vise Sent from my iPhone using Classic Zcar Club mobile
Last reply by footballnick17, -
- 3 followers
- 20 replies
- 4.9k views
I have a 260z but I think the differential was switched out in the 1980's with an R200 differential. While replacing the strut on the right rear I noticed dried oil around the half shaft seal. I started looking up how to replace the seal and it looks there are several specialized tools needed. Is this a straight forward repair? I thought that all I needed to do is unblot it and yank out the shaft. Jeff
Last reply by Zed Head, -
- 7 followers
- 50 replies
- 8.3k views
I have been gathering some baseline info in an effort to find out why my 240z feels to be lacking power. It runs good, idles smooth, but just does not have any "plant you in the seat power" in any gear. Below are the specs along with some pictures of the spark plugs I pulled. I have not checked the timing and I know how important it is, just didn't want to put the used plugs back in to do so as I plan to install some new ones. L28 N42 Block #184718 Was told it was bored out to 2.9L but have no way to validate this. 1973 E88 head with stock cam in good shape and properly adjusted valve train. Triple Dellorto DHLA40 carbs, rebuilt, and appear to running a…
Last reply by Hardway, -
- 7 followers
- 26 replies
- 4.3k views
In 2014 i bought a 1972 240z that carried an upgraded L24 engine as shown in the picture. However i have been struggling with the car in order to get it stable under stop and accelerate idle traffic conditions and it was not until today that my mechanic found out that the oil pressure in the car was very low and it only went up to the middle when you accelerate real fast. Once in traffic it starts dropping back. He argued that it was quite posible that the company that rebuilt the engine did not change the old oil pump during the process and that it is not pushing enough process to cover all the parts of the engine when its warm. The oil gauge has never kept the oil marke…
Last reply by psdenno, -
- 9 followers
- 20 replies
- 7.1k views
Some time ago I'd collected 8-10 dipsticks from various S30 and S31 engines. At the time I noticed there were three different lengths, measured from the bottom of the rubber stopper to the tip of the dipstick. I have two dipsticks currently that differ in length by 3/8". Does anybody know which sticks are for which block? Theoretically, the amount of oil in an engine could be off by 3/8," potentially translating to being 1/2 to a full quart different. I'm currently running the short dipstick from my L-24 engine in an L-28 F54 block from a 280ZX. It's obviously easy to swap one out for the other but I don't know for sure which is correct for the engine in my car. I'm wond…
Last reply by kully 560, -
- 1 follower
- 20 replies
- 12.5k views
this seems like a dumb question but on a f54 block and a n47 head I can only get 4.25 -4.5 qt of oil in this motor. I drain the motor oil when it is hot, I let it drain for about 1/2 hour then I change the filter. now I fill with 4 qt of oil ,start it up bring up pressure and then I shut down and let it cool for about 1 hour or so and then I check it and it only takes maybe a 1/4 qt - 1/2 qt more to top it off to high line on the dip stick. every book says 5 qt but not in this motor. does every body get in 5 qt of oil? I check the rubber stop on my oil dip stick and it does not move so I now that is not the problem. I just do not want to dump in 5 qt and it shows over …
Last reply by kully 560, -
- 4 followers
- 5 replies
- 1.3k views
Looking to buy SS brake hoses for my 240z, stock calipers and wheel cylinders will these hoses fit it, it has the Banjo fittings Sent from my iPhone using Classic Zcar Club mobile
Last reply by Johnny wick, -
- 2 followers
- 40 replies
- 3.7k views
On my 77 280 that was fitted with a ZX five speed in 1992 has now developed a rattle in the stick shift. Like a metal on metal sound. It is an 81 IIRC. My receipt has faded and I can't tell for sure. But I'm pretty sure it is an 81. Trying to recall a single junk yard purchase that long ago, well..... Anyway, normally you would replace the 2 shift pin bushings and that would take care of it. Not this time. When I drive it the rattle is REALLY noticeable in the forward 3 gears, 1st, 3rd, and 5th. Most noticeable in 3rd. If I rest my hand on the stick shift it almost goes completely away. Instead of only replacing the 2 bushings I had purchased a kit containing the 3 bush…
Last reply by siteunseen, -
- 1 follower
- 1 reply
- 824 views
Hi, who is the best camshaft to my 240z, i want more hp Sent from my [device_name] using http://Classic Zcar Club mobile
Last reply by Travel'n Man, -
- 1 follower
- 1 reply
- 913 views
Anyone have a recommendation for purchasing a overflow hose? Sent from my iPhone using Classic Zcar Club mobile
Last reply by Stanley, -
- 1 follower
- 0 replies
- 741 views
inlet 8.48mm liftexhaust 11.66inlet/exhaust duration 316 degTiming figure 51/85 85/51Inlet timing@ full lift 107DegV clearance .010 .012Is it me or does the lift seem a little low?For a fun, cammy feeling engine
Last reply by Jason240z,
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