1982gl4 Posted March 18, 2012 Share Posted March 18, 2012 My 1984 fwd five speed ea81 wagon has started with the dreaded jumping tach. There's also quite a bit of noise on startup. I can also see some wear on the rotor along with other internal components from them making contact :-\ I've heard of people rebuilding them, but it sounds like it's somewhat involved, which I'm fine with, i just can't find any info on how it's done. If I get a new disty what should I get? How do I tell which one I have now? The tag has worn off. Will a 4wd one work fine? I've heard there are some differences. I don't really want to send mine out as I plan on starting to drive it in the next couple of weeks, and finding a used one is not an option where I live. They are long since gone. Thanks for any info you can give me, it's much appreciated! Link to comment Share on other sites More sharing options...
kabarakh Posted March 18, 2012 Share Posted March 18, 2012 As far as new one's go, from what I've dug up on the forums 4wd came with hitachi distributors, and fwd came with nippon-denso. Difference was the length of the shaft for the gear iirc. Link to comment Share on other sites More sharing options...
Idasho Posted March 19, 2012 Share Posted March 19, 2012 this thread has some rebuild info. http://www.ultimatesubaru.org/forum/showthread.php?t=3296 I considered doing just that a whole back, but instead just bit the bullet and purchased a reman. This page has some dizzy replacement info http://www.bonnefinstudios.com/kwb/automotive/dizzy.htm Link to comment Share on other sites More sharing options...
1982gl4 Posted March 19, 2012 Author Share Posted March 19, 2012 (edited) Awesome thanks guys! I I have the other dizzy by looking at Idasho's link, at least not the hitachi you put in your car anyway. So I'll check tomorrow and see prices. and maybe order one. Then I can try to rebuild this one for future use if it's not too torn up inside. Edited March 19, 2012 by 1982gl4 Link to comment Share on other sites More sharing options...
TheLoyale Posted March 19, 2012 Share Posted March 19, 2012 So, my '83 has the Hitachi (Which is correct) and these run Brass bushings Vs Bearings huh. Wonder how ofter they fail? Something to look forward too I guess :-/ Link to comment Share on other sites More sharing options...
Gloyale Posted March 19, 2012 Share Posted March 19, 2012 I've got a few....both HItachi's and Denso's. (sounds like you've got the denso) All pulled from running engines. $30 bucks shipped to you if you need one. PM if you need. Link to comment Share on other sites More sharing options...
1982gl4 Posted March 20, 2012 Author Share Posted March 20, 2012 PM sent! I may try to rebuild the one I have if I can get a good spare! Link to comment Share on other sites More sharing options...
edrach Posted March 20, 2012 Share Posted March 20, 2012 There's an outfit in Portland that rebuilds distributors. The name escapes me but General Disorder will remember the name and would know if they are still in business. I know I posted it a while back but GD would likely be able to save you some long and involved searching. Most likely your jumpy tach is the result of a worn main shaft bushing. If the shaft wobbles it really screws up the timing and the tach doesn't like it. Link to comment Share on other sites More sharing options...
1982gl4 Posted March 20, 2012 Author Share Posted March 20, 2012 He posted this in another ea81 jumping tach thread I found. http://www.philbingroup.com/ Be nice if there was something a bit closer, I'll have to look around here as well. I'm hoping I get a good used one and I'll be set for a while. Still nice to have a good backup at all times. Link to comment Share on other sites More sharing options...
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