Late November I joined this resourceful site after rescuing a 1976 Z that was sitn in a barn for almost 2 years - holidays are over and the new year resolution is to have this z on the road in upcoming months - started the standard clean-up/diagnostics - i have been educating/lerking on the forums - very informative!! i know i can sleuth thru the forums and find most answers but i know all z's are unique - hopefully photos will answer a few questions

1. Heater hose flange on firewall - intake/return - disconnected - only reason i would think this was done is that there is a problem underneath dash - they looped the intake hose from the pump back to the block - any other reason why this benefits or hurts performance ?

2. Many breather/coolant hoses are disconnected plugged - im hoping most are elimination of emissions

3. I was told that this engine is from a later year other than the original 76 (?) where do i find engine tag (?) any indication from photos?

4. Empty brackets - Engine compartment - front right passenger side (photo below) & blank bracket near air intake - front left (below AFM)

5. Under passenger seat near brake relay - mysterious harness?? (photo below) / Passenger side - under dash - another mysterious empty harness?

Any info would be a great help - safe - Happy Z riding in 2011 !!

Edited January 8, 201114 yr by Moonshine

Moonshine from the picture in post 4 your car was originally 302 green leaf metallic like my car. Look at the hood latch for the original color. The color seems to be rare, any way I have not seen many in pictures or in person.

I have a lot of pictures of my car in original condition, if you need me to get some to you let me know.

i see what u saw - for some reason thats green overspray - ive been knuckling white oversparay as well everywhere - perhaps was in garage with other more important projects bein sprayed - i reassure you that this puppy was originally yellow - its in every nook & cranny - personally i hate yellow - cant wait to re-face w/ new paint - todays 8 hr project was strictly interior - i spent an hour polishing the ash tray - ol lady brought me a few hot choclates during the days event - she is right - ive neglected her now that i have this Z - addicting hobby

Edited January 9, 201114 yr by Moonshine

Well, I would say it has a leak in the heater radiator.

removed many interior components today -after inspecting heater core - seems as if the green stained neon leakage is stemming from the heater hose flanges/heater valve - untightened laziness?? came too far not to have the heater core removed/refurbished - in researching - heater valve usually is the first to go - o-ring inside and seal outside is notrious for fouling - lack of flushing - anti-freeze/water ratio - unbalanced - update/photos to follow - tomorrows project :stupid:

Interior tear down - as previous noted - problem with the heating - during diagnostic - few weak clamps seemed to be the problem - many visible neon green anti-freeze stains on the stems on the heater control valve & heater core inlet/outlet - one unstock hose was forcibly pinched which perhaps caused a weak spot - i would say it is imperative to have the correct hoses in place - along w/ reputable - stainless steel clamps - and most definetely replacing clamp that can be tightened with a socket - phillips heads on originals were corroded - not fun removing and not an easy spot to work in - thorough cleaning of all units - heater coil refurbishing is worth the extra bucks in the long run - one link i found to be very helpful to remove/replace heater coil -

http://www.maplesoft.net/datsun/repairandupgrade/heatercore/index.htm

Edited January 15, 201114 yr by Moonshine

In calling a few junkyards in a 20 mile radius - i found a few Z's - there are some silly misc parts i need for the build - dash bracket, door handles, seat belt covers, emissions canister/bracket, switches.... photos above is a yard a few miles from me - he had 3 Z's - found everything i needed & w/in budget - yet a bit depressing to see these neglected gems in a sea of rust/metal

8 second Z - took these last year at a local track here in TN - Thunder Valley - Bristol Motor Speedway - streetfightz - steroids isn't even the word

Engine Tag reads = L28 100516 - but could not find matching tag on front right strut housing

[ATTACH]40003[/ATTACH]

Check the area near the inspection lid next to the washer fluid canister. The plate was moved halfway during the '74 model year. This is where is is on my dads '74 1/2 260Z.