m0l0t0v

Hey guys, Recently bought a japspeed 4-2-1 manifold for my mb3 (https://www.japspeed.co.uk/honda-civic-4-2-1-d-series-tubular-manifold.html) which said was a direct bolt on fitment to original standard/aftermarket cat/decat. Now I know on my civic the cat was in the manifold but I assumed the bore of the cat would be the same as the rest of the exhaust system (standard). It isn't. Bore of japspeed is 2" and I believe standard is 1.5"/1.75" as it's not a proper fit. I can fit it so it's not blowing but the rattling is hella annoying. Is there a 2" bore centre pipe and backbox (would assume the backbox would need to be the same size as centre pipe) that I can buy relatively cheap? I've tried looking but can only find stuff like m2 motorsport. Is an mb6 standard pipe 2" bore? Just asking because there's a couple of cheap ones on ebay. I would at some point change the rest of the exhaust system but want to fix/do other more important things first! (timing belt, handbrakes cables, etc)

One has blown and they're a pain in the arse to get to but I'm also at work till late tonight. Would be nice to order them tonight to fit them tomorrow. Mb3 if that makes any difference

Interesting.. Mine idles around 500 too with no issues. On my Haynes manual it says the following: "The idle speed should be D14A2, D15z3, d16y2, d16y3 - 550 rpm +- 50" And for other other d series engines (d15 and d16) and all DOHC models it should be 480 +-50

Ah hero. Unfortunately I'm the opposite side of the island! I live just north of London. I don't know how much of a pain in the arse it would be to post it. But if you could, That'd be ace. Obviously I'd pay for the postage and still happy to pay for it

I know this is a bit rude, jumping in on your thread like this... But if you're not gonna use that VTIS lip...

Ok, never mind. Sorted it. It was to do with the little balls and springs... Removed them all, noticed that one of the balls was actually stuck to the end of the bolt with the spring compressed... Tested the gears without them in (not splitting the case... Again!) And they moved very fluidly. Even reverse. Then used the old bolts, springs and balls from my old gearbox, torqued them up and she still goes though the box beautifully. So it was those balls. Good to know anyways... Getting excited now to drive my old civic again!

So yesterday I rebuilt my gearbox. It felt fine and then when I started the car, going left/right didn't feel as smooth as it should. Couldn't get into 2nd at all and first was a bit clunky... 3rd, 4th, 5th and reverse felt fine. Really smooth in fact. So I started the process again and I've taking the box out. Took it all apart and started from scratch. Before I put the cover back on I test left/right feel as if it goes into all the gears smoothly. Feels perfect. Can't get it into reverse but never could. Felt the same when I put my old gearbox back together and that was fine. But when I put the cover on and torque all the bolts, I can't get into any gear. As far as I can tell, nothing has changed other than the cover. So why would doing that make it hard to change gear? Don't want to put it back in until I'm 100% certain it's good to go... So what the hell am I doing wrong? I put everything back in order following this guide and a YouTube video... http://www.d-series.org/forums/transmission-alley/14079-diy-tranny-removal-input-shaft-bearing-change.html#/topics/14079?page=1&_k=2zxw6u

Also unavailable... Second hand it is. I guess I'll have to find some time in the future! Ah.... the things we do for ours cars...

I replaced the clutch August last year... Though I have a feeling the clutch may be fubar from when I was trying to not stop/brake down in the middle of rush hour in Guildford after a road had been closed down... Right smack bang in the middle... Will see when I take it out tomorrow. I also took out the gearbox to replace the input shaft bearing just before new years but was sent the wrong size bearings... Then this happened. And since the bearing is a common failure on these Honda's I'd thought I'd play devil's advocate and replace the bearing on the new gearbox. Glad I did as the one in the new gearbox had failed too! thankfully the rest is in good nick. Smooth gear operation. Now to fit it in tomorrow morning Glad I saved myself several hours for £15 now...

Well I managed to get one for £85 with 80k miles on it. Going to replace the main shaft bearing anyways since it seems to be a regular failure and I don't fancy removing the gearbox ever again!

So my heater core is leaking. Only slightly but I can smell antifreeze through the fans. I know you basically have to remove the centre console among other things but can't seem to find where to buy a heater core... I'd rather have a new one rather than getting a second hand one from a scrap car. Surely they can't be too much since a new rad is like £50...

Cheers guys. What price am I looking to pay? Cheapest I've found on ebay is 150 delivered... Am I looking at cheaper prices through breaker yards? And, err... do I need to take the gearbox off myself or do they do that? May be a silly question but never used breakers before...

So, after wanting to replace the input shaft bearing for ages and being screwed over by the synchro bearing kit not being the right size and wasting my weekend, my gearbox finally gave up and I'm currently stuck on the side of the road waiting for recovery. So, gearbox is currently stuck in "5th". I say with the "" because when I release the clutch pedal, nothing happens. Car won't attempt to even move forward and revs don't drop. I can't shift out of "5th". Either with the engine on, off and/or with the clutch down or not. Clutch itself seems to be working fine/as normal and doesn't feel any different. If I try and shift out of "5th" without pressing on the clutch I hear the usual gearbox whine noise. So this all leads me to believe that it's more than just a simple bearing overhaul and more to do with the synchros, etc. Surely this now means a new to me gearbox is the way forward. But where do I source one? Last I looked on eBay I could only see some gearboxes for like £300 or more from mainland Europe... :/

@Chandler Fair. The kit is meant to replace those two as well as 5 from tghe first picture and then 2 that are on one of the spindles. One of those two has an indent for the circlip to hold the box togetheer.

@Chandler Input shaft bearing. I haven't touched the flywheel bearing. I replaced the clutch and flywheel earlier this year as my clutch had gone and wasn't sure what the flywheel was like so rather than risk it (needed the car the next day) I got a replacement one. I'm pretty certain it is. The car was completely standard when I got it as far as I could tell, other than the headunit and possibly the spoiler. And I would've thought so. This is what was recommended to me: https://h-tune.co.uk/synchrotech-transmission-bearings-seals-kit/ But I got them from Tegiwa imports instead as I was buying a couple of other things. What 2 bearings did you replace?

@Chandler Ha, lucky b****r! Also, am i right in thinking that the inner diameter of the bearing should relatively match the the size of the spindle that eventually attached to the clutch and flywheel? It's just that the kit I ordered is for a d15 gearbox. There's no mention of different type of d15 gearbox and they do the same for d16, etc. Just standard "civic '89 - '00 Civic SOHC" I ordered and fit a little flywheel for a d15/d16 gearbox and that fit perfectly. In terms of sizing of bearings, the one I need is 26mm inner diameter x 58mm outer diameter x 15mm width whereas the one i was sent was 22mm inner diameter 65 outter diameter x 17mm width. Would a smaller diameter spindle fit the same flywheel? Can the end be thicker?

@Chandler Thanks bud I appreciate it. Next time it won't be a hassle though, hopefully! How much did you pay Honda and did they have it in stock or did they have to order it in?

I've put the gearbox back together with the old bearing. I've got work to go to and the civic is my only way to get to work! I'll post some pictures of the other bearings. It's meant to be a full bearing rebuild kit, other than the differential. And there were 5 bearings, just one was on the other case...

I think only one of the bearings fit. Maybe two overall. But I can only see 4 bearings to replace yet I have 5... why?! The 2 I think will fit are on one of the gear splines. Two on the box are a completely different size.

@Chandler Well I got it out. Viewed it from a different angle and then it made sense. However.... I've either ordered the wrong set of bearings or they sent me the wrong ones. I ordered a set of mf Synchrotec bearing and seals kit for D series engines: http://www.tegiwaimports.com/select-car/honda/eg/drivetrain/mfactory-synchrotech-bearing-and-seal-kit-89-00-honda-civic-ef-eg-ek-crx-d15-civic-sohc-35mm.html So far, none of the bearings match up Bearing from the tranny on the bottom/right. Bearing from the set on the top/left

Well to change the clutch on my bike it was a case of remove 8 bolts, remove clutch cover, remove clutch, install clutch, install new gasket, install clutch cover, do up 8 bolts. Literally takes 20 minutes. Don't even need to empty the oil out! Yeah, can't wait to be rid of that horrible ISB noise

Guess I'll give that a go. Life was so much easier on the bike!

@Chandler Yeah I am trying all three at the same time. Was just doing the one shaft for the video to show what it was hitting. I've removed all the bolts other than the big bolt with the spring to push that rod down. Guess I'll just keep trying :/

Yeah I have. I have tried but I can't seem to be able to move that bit. The long bolt thing I can move but not the little thing that the splines are hitting...

I've uploaded a video on where they get stuck. I just can't comprehend how they get past that!