General Category > Quadrajet Carb Talk and Tips
17059286 0977 marine carb
Ethan1:
I believe it's a reman unit as per the date code. Kind of hard to decipher the date code but it looks like the 97th day of 1987 for a 1979 Qjet. Is there any sticker on it or what is left of one? It uses torx screws as well. Wasn't that used on reman or wasn't used until the early-to-mid 80s? Or were they ALWAYS phillips head?
Hotrodssnova:
No stickers or resudue of one. No play in the shafts and no marks on the torx screws either. I guess I will have to open it up and see what's in it.
Really need to get some of those tiny bits like in the book to measure and drill with.
The engine won't get put in the jeep till fall, so I have some time.
Cliff Ruggles:
There are a few drawbacks using a Marine carb in an automotive application. They lack vacuum ports for the distributor, and are set up for a Marine application.
Marine engines are heavily loaded most of their lives, so require a LOT more fuel than an automotive engine.
You can add a vacuum port for the distributor, and recalibrate for the engine you've built. Going to need a good bit of idle fuel as that cam is pretty "hefty" for 350cid at that compression ratio, and tight LSA, so it's going to have a "weak" signal at idle speed.
We can help out with everything you need to build the carb and set it up for what you are doing, no problem there.....Cliff
Hotrodssnova:
Thanks, Cliff. I will be giving you a call after vacation. You are 100% correct about the vacuum ports. Looks like a simple fix on that. Still rereading your book. There's a ton of info to absorb.
Cliff Ruggles:
It's quite easy to add a manifold vacuum port, but a bit more difficult if you want ported distributor vacuum as the source location must be very precisely located above the throttle plates to it's adding nothing at idle but all in with the slightest movement of the throttle right off idle.....Cliff
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