here is a tough one boys, I just installed a new engine into my 1978 Datsun 280Z, and I can't get it to start. It has fuel, spark, & compression. I have checked the valves & they R OK, timing is right

Asked by Apr 15, 2017 at 06:56 PM about the 1978 Datsun 280Z

Question type: Maintenance & Repair

I have replaced the flow meter, the thermo time sending unit & the main Brain computer box and the ingnition switch and still don't even get a backfire. Any Help out there? I've been doing this for 50 yrs!

8 Answers

25,535

what engine to what engine is in it now...i love the 280 Z..heres one of mine

1 of 1 people found this helpful.
25,535

ill get back to you.....kelly

25,535

so when it comes up on compression stroke you have that plug firing off? and there is or is not getting fuel in the combustion chamber / YOU DIDNT SAY YOU TRIED SPRAYING FUEL/CARB CLEANER IN IT..IM SURE YOU HAVE...SO AT THIS POINT YOUR NOT SURE IF IT IS GAS OR SPARK...A HUGE VACUUM LEAK?

I have douched it with fuel several times & no go. I have pulled the plug & found TDC & checked timing. I have put Injector lights on the power lines going to the injectors & it shows juice.

PS; the L28 engine is out of a 79 ZX with all 78 exterior engine parts on it. Basicly it ran when I pulled the old motor out & I haven't changed anything, it is all stock & I had 3 of these, down to two now.

yours looks sweet! come to Fresno & we will run up to McKinley Grove by Wishon & Shaver Lake!

I have replaced the flow meter, the thermo time sending unit & the main Brain computer box and the ingnition switch and still don't even get a backfire. Any Help out there? I've been doing this for 50 yrs!

I would also like to know where the juice comes from for the cold start valve?

Your Answer

Add photo

Related Questions

280Z

Looking for a Used 280Z in your area?

CarGurus has thousands of nationwide listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search Datsun 280Z Questions

Datsun 280Z Experts

#1 F_O_R
F_O_R
Reputation 150
#2 tennisshoes
tennisshoes
Reputation 120
#3 Andrew Olsen
Andrew Olsen
Reputation 90
View All

Related Models For Sale

Used Chevrolet Corvette
658 listings starting at $4,450
Used Ford Mustang
4 Great Deals out of 1,358 listings starting at $5,980
Used Chevrolet Camaro
848 listings starting at $8,995
Used Toyota Celica
14 listings starting at $8,980

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.