nikki carb spacer
#1
nikki carb spacer
Are all nikki carb spacers on 78-85 rx7's the same or are the early SA ones different?
I'm putting an SA intake manifold on my 85 engine, but don't have the spacer from the SA, just the one from the 85. Not sure it even matters, but I'd hate to find out this close to DGRR!
I'm putting an SA intake manifold on my 85 engine, but don't have the spacer from the SA, just the one from the 85. Not sure it even matters, but I'd hate to find out this close to DGRR!
#4
Moderator
iTrader: (3)
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,844
Received 2,605 Likes
on
1,848 Posts
i think 81-85 are all the same, earlier DD is probably right
#5
Lapping = Fapping
iTrader: (13)
79-80 is different. There is a small channel in the spacer connecting both primary runners together. The channel moved from above to below the center for some reason. I think it's because the SA carbs had a fuel and air screw while the FB carbs have a single "mixture" screw.
#7
Lapping = Fapping
iTrader: (13)
The manifold swap does matter because you have an open ACV port that is active on the 81-85 engines. You need to fill it in with quicksteel. The 79-80 manifold doesn't cover it.
Also look at the spacers. There will be a pattern or indentation that matches the manifold it came from so be sure it sits flat on whatever manifold you put it on to avoid vacuum leaks.
Also look at the spacers. There will be a pattern or indentation that matches the manifold it came from so be sure it sits flat on whatever manifold you put it on to avoid vacuum leaks.
Trending Topics
#8
Bubble Gum's Good
iTrader: (1)
Join Date: May 2005
Location: Norfolk, VA
Posts: 625
Likes: 0
Received 0 Likes
on
0 Posts
While we're on this carb spacer subject, (hopefully not hijacking) what's the general consensus on the paper gaskets from rebuild kits? The spacer on mazdatrix talks about how the gasket is permanently bonded to the spacer but I've never seen that. My spacer is actually open on one side, as in, I can see the channels in the spacer.
#10
Lapping = Fapping
iTrader: (13)
Another thing to consider is the gasket paper in those aftermarket kits. It is a porous fiberous material that gas and oil soaks into easily. The OEM Mazda gasket is more of a solid somewhat thinner material. Not sure this means very much but just for your information.
Thread
Thread Starter
Forum
Replies
Last Post
rotor_veux
2nd Generation Specific (1986-1992)
3
09-28-15 09:25 PM