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  1. General Tech
    Howdy, I did some searching around and didn't quite find the answer to my questions so hopefully this doesn't seem like too dumb of a question! I've got a 1990 USDM Honda Civic SI that had been sitting for about 10 years before I got my hands on it. I did a good chunk of work to it and got the...
  2. Naturally Aspirated
    Hello so I’m about to assemble my engine with the following parts and I’m wondering if I will have any problems with this set up. Thank You -d16y8 Stock Block and Stock Head -d16a6 Crankshaft , Pistons and Rods -2 layer y8 head gasket -all y8 bearings and rings -d16y8 Intake
  3. General Tech
    Hey guys so Im sure there are already threads on this but the ones I have found aren't very clear. I have a 91 civic ex with a d16a6. I'm wondering if there is any difference in the block when compared to a d16z6. My goal is to use the a6 block and put a z6 head on it. Is it possible? I'm...
  4. Showcase
    Hi everyone. After 6 months of searching almost everyday on facebook marketplace I finally located a d16a6! I talked with the seller for two weeks trying to find time to make the three hour trip from ny to mass and make it happen. He was difficult to communicate with because he said he didnt...
  5. Transmission alley
    does any one know if i can put a 212mm clutch on a L3 200mm oem transmission?? looking for a lightweigth flywheel for my d16a6, but there is none , there is only for the 212mm
  6. New Member Introductions
    Vehicle: 1990 Civic SI -Skunk2 Megapower Exhaust -Stock Internals -260,xxx Miles -Not my DD but I enjoy driving it and will only put in storage over Winter(from Missouri, roads can get salty) -Other modifications irrelevant to this topic. Goal: 180whp -Would like to be capable of 200-210whp...
  7. New Member Introductions
    Hello! Just last Wednesday (12/7) I picked up a 1991 Civic Si! 5spd, no power steering, and I love it a ton. Currently trying to sell my other car, but for now I am trying to research turboing the D16A6 and I just have a few questions. I've been doing some research and there really arent a lot...
  8. New Member Introductions
    Anyone have any recommendations for replacement OEM quality (or better) exhaust valves for D16A6? I am in the process of repairing an engine that broke a connecting rod and hit the valves on cylinder #4. Honda still offers replacement intake valves (Part# 14711-PM3-000), but they tell me that...
  9. Naturally Aspirated
    ok so heres the deal. my ef hatch has a stock motor with 308k it runs like shit. buying a new d16a6 to swap it. trans and clutch were replaced 40k ago, i found the new motor at nippon in cerritos ca and they state their motors are 40-50k on them? generally speaking will i run into problems with...
  10. Engine Building
    So I'm in the process of getting the D16Z6 head I found reworked by a local shop of some repute, just wondering if I can get some advice. Here's what I'm going off so far: D16A6 to D16Z6 Conversion..."Mini-Me" So far I have: D16Z6 head (soon to be reworked/ possibly new cam) D16Z6 valve...
  11. DIY Forum
    Okay so I rebuilt this engine with the mechanic I used to work with(35+ years experience). He had me questioning a lot of what he said because of certain circumstances. My question is after I got the rods and pistons in I had trouble turning the crank. We switched out pistons 1 and 3 which...
  12. Engine Management
    So I replaced the crank seal on my d16a6 and put a new timing cover on after replacing the timing belt and lining up the timing marks as best I could see. Now, the lower timing cover has a sort of timing "aimer" (one long plastic triangle that you line up between two smaller plastic triangles)...
  13. New Member Introductions
    Hey, I'm a noob. I just bought a 91 RT4WD Wagon. The body is pretty decent as well as the interior. No rips, nothing missing. It has a d16a6, and I got it for a good deal, but it's leaking like a sieve. So I'm thinking I'm gonna pull the engine and replace all of the seals and gaskets, as well...
  14. General Tech
    Im starting to really hate timing. Been reading and searching threads and everything but i dont understand. Okay so the helms manual says set to tdc. So i line up the pointer to the TDC mark on the crank pulley. Then I set the cam pulley to tdc. I have a question about that first, should the cam...
  15. General Tech
    I have done some researching, and i cant find anything about this leak so i joined here, i have repaired every leak on the engine trans but this, ive already replaced valve cover gskt, dizzy o ring, and clean and after inspecting i have one last leak and it baffles me, it is the top front bolt...
  16. Engine Building
    recently got a civic that I am planning on doing an a6 cam and an after market intake on. its a bone stock 1993 dx with air intake and exhaust. d15b7 after an oil change i finally drove it. It has a ticking sound like it needs valves adjusted. Before i do a bunch to it i want to find out...
  17. Engine Building
    Please tell me if the a6 crank will fit my y8 block? If so, if there's anything i need to do to make the match!! Thanks
  18. General Tech
    Can anyone give me some advice on where to get Polly mounts. I've looked on the net and keep find b swap mounts. I have 89 civic si with a d16a6 that I want to build up.
  19. Engine Building
    Hi there, I am very new here, my name is Cory. So here goes. My first vehicle was a 1986 HF Honda CRX. I loved it to death until I let my friend get in the driver seat. He blew the engine to pieces doing a burnout I told him not to do. What a great friend. The car however is still great for...
  20. Naturally Aspirated
    Hey Honda experts, I am having an issue with the D16a6 Engine after a fresh rebuild. Here's what was done: Engine: Bored block to 75.5mm Rehoned cylinders Oversized OEM style pistons Hastings Rings machined top for flatness (not sure how much the machinist took off) Head: New seals New...
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