Hyunbs

Hi had a question.

I recently bought a 1994 civic si eg hatch. The motor says D15B and the head says VTEC though. I thought D15B doesnt have vtec? I have a leak right now and want to change my gaskets and seals. Do i purchase D15B gaskets n seals and what about the timing belt? Which should i buy? Because when i go to autozone they tell me my 94 si should be a 1.6 d16 engine. Please help. Thanks. Also my car was fine when bought but now i have to jump it everytime i start it. And after i shut the car off it does again! Last thing, i want to buy slimmer fans i saw on ebay. Are those better than the stock ones i have currently? Thanks so much.

PerfectionIsKey

The block can be a d15b and the head can be off a vtec motor.

dirty19

iTrader: (1)

The head says vtec or the valve cover says vtec?

street_racer_271

iTrader: (8)

buy parts for the D15B

Hyunbs

Thanks for the replies!! And on the top lookin at it first thing when the hood is open it says VTeC. I think valve cover. How do i check if the head is vtec?

grumblemarc

iTrader: (4)

I typed
into Google.

https://www.google.com/webhp?sourcei...w=1317&bih=886

backyardbuilt92

It can still be a si but the original d16z6 vtec motor isn't in it anymore. Just picked up a 92 si hatchback myself.

l1l_r1cky

You have a mini me swap, original motor d16z6
Just buy the gasket for the d15

jbpnoman

Do you even know what a mini-me is? We can't know for sure what he has, since he hasn't given us his head code yet. OP, check your head code. If the year is 87 or 88, it's the non-vtec head. If the code is P08, it's the standard vtec head. If it's P2J, it's the three stage head.

There are THREE different D15B motors. One is non-vtec. One is vtec with the cross over at 4800. The third is the three stage vtec motor, with cross overs at 3000 and 6000.

The first is either an old (88) or newish (98-01). The second is about the right year for your chassis (92-98). The third is a hair newer than the chassis (95-00)

OP, to actually answer some of your questions:

Order your gaskets and timing belt kit (that means water pump and tensioner, too. Don't be lazy!) direct from Honda, or get known-good brand parts off eBay. Parts stores aren't going to know a damn thing about your motor, because it's JDM. It isn't in their system, and they'll have no clue what you're talking about.

If you have to jump your car every time you start it, either your battery or your alternator are bad. Those are two parts autozone/advance CAN test for you without ******* it up.

No, those slim fans you see on eBay are not better than the stock units.

weekendboost

Just look for d15 parts, if you get a d16z6 part like the what the store would recommend it's going to raise your compression, and if you want to find out if you have vtec check the top left corner of your valve cover, should be a cylinder near there.

24TEN

iTrader: (2)

Glad to see "jbpnoman" broke it down correctly. There was definitely some incomplete info being posted in here.

jbpnoman

I do what I can to fix the stupid

Hyunbs

Wow first of all thanks you so much for the amazingly detailed post.
You answered all my questions and even helped me with stuff i didnt know about haha , sorry im new to all this. Just got my first car and am trying to figure all this out. Also how do i check the head code? Thanks alot again. )

Hyunbs

Oh! I think i found it . My head it says "P08-5"

jbpnoman

Its no problem man, at least you appear to have tried to help yourself, rather than just coming begging for help. So you have a D15B bottom end and a D16Z6 top end. HERE is a full write-up on a D15/D16Z6 mini-me, how he did it, and what parts he used. You should be able to read through that and answer all of your questions regarding gaskets and belts.

I would recommend you go ahead and replace your timing belt, tensioner, and water pump while you have the head off, if you're doing a head gasket.

94EG8

There are more than 3:

- Dual carbed
- Non-vtec
- OBD1 Vtec
- OBD1 Vtec-e
- OBD2 non-vtec
- OBD2 3 stage vtec

The OP most likely has the OBD1 vtec variant based on the head code. An OBD1 D15B Vtec is not the same thing as a mini-me! Some parts like the timing belt and water pump are different. The D15B Vtec uses mostly D15Z1 (VX) parts, a mini-me uses a combination of D16Z6 and D15B7/D15B8 parts.

Hyunbs

Thanks for the post, how do i find out which D15B I have? On the front all i see is D15B stamped and under it a line of digits and on the left of that a barcode and digits.

Hyunbs

Thank you for the reply, I have a leak somewhere and i dont know where its coming from so I will be changing all the gaskets and seals , timjng belt, water pump...etc all while im at it. Hopefully this will stop the leak . :/

Hyunbs

Also i have another quick question. I saw this hose thats been plugged up with a bolt. Someone told me it goes to my TB , i dont have a stock TB i have a skunk 2 TB , my car idles fine but when in neutral and i gjve it gas and let go of the gas pedal the rpm goes drops below 1 almost passing zero and the engine sounds like its about to shut off and the rpm goes back to normal around 1ish. Does this have anything to do with it?

Hyunbs

This is the hose i was talking about

jbpnoman

Where exactly are you getting that information? Everything I've read about the P08-5 head code is that it's a Z6 head.