would you say my engine is cool to turbo?
 

i've got a d15b7, and most of a turbo kit waiting to go on.

it has 115k miles,
runs good, but eats up some coolant(i have a feeling
thats the water pump though).

I just did a compression test
although the engine was only half warm(dont know
if that'll mean the results are higher or lower than they should be?)

but the results I got were this:
1. 197
2. 190
3. 190
4. 200

thanks

Re:would you say my engine is cool to turbo?
 

Turbo it, doesn't look too bad. And if it blows Hondas are crazy cheap. You could get a new D15B7 (used, but new for you) for under $200

Re:would you say my engine is cool to turbo?
 

Numbers look good, but the water pump will not "eat" fluid. If it's leaking that's a different story. Slight head gasket leak? :-\
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Re:would you say my engine is cool to turbo?
 

yeah i've been trying to diagnose the coolant loss on honda-tech. Someone suggested the headgasket, and that I do a compression check, but I was thinking the numbers looked pretty good, so maybe the headgasket is good too?
which makes me think of the water pump.

Car doesnt ever leave a drop of anything underneath it.
and theres only one spot on the engine bay thats slightly moist, and I think that might just be spilled oil from when I was messin with the head.

i was thinking about re-torqueing the headbolts just in case. I heard that sometimese helps.

oh, and a bad waterpump wont eat coolant?(well not eat, but let some leak).

Re:would you say my engine is cool to turbo?
 

So, you can see the water pump leaking? It can't leak from the inside(well it can, but it won't result in a coolant loss. If you can't see water leaking out of the water pump it isn't the problem.

Those numbers look good, yes, but that doesn't mean that under WOT and a full load it isn't leaking at all. It could be a very small leak and under no load it doesn't leak. Have you looked at the oil?
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Re:would you say my engine is cool to turbo?
 

you don't do a compression check to find leaking gaskets, you do a leak down test. They kind of related, but not in the info they provide. On a leak down, you put shop air into the cylinder, and then monitor the loss. Anything over 10% is borderline excessive. But you can also spot your leaks. Air out the intake, indicates that you have a leaking intake valve. Air out of the exhaust pipe, means a leaking exhaust valve. Air bubbling out of the coolant, is going to show a leaking head gasket, and air coming out of the valve cover, is going to show leaking rings.

Re:would you say my engine is cool to turbo?
 

thats a mistake

Re:would you say my engine is cool to turbo?
 

well I've only got the internet,
either that or pay a mechanic, and i'm broke so thats out :P

you guys are helpful too though :-*

Maybe i'll try a leakdown test if things get really gnarly.
i'm going to re-torque my headbolts and see if that helps.
the coolange leakage is small though, so I can sit on it for a while.
(not going turbo till i have $$ anyways)

Re:would you say my engine is cool to turbo?
 

you are never aloud to go to honda-tech again lol just kidding, numbers look good man, turbo ---- but fix ur coolant leak first

Re:would you say my engine is cool to turbo?
 

what do you think might happen if I just turbo'd it as is?
and kept a close eye on my coolant levels?

Re:would you say my engine is cool to turbo?
 

there is always that chance you could overheat and blow your ---- up... no reason for that.

Re:would you say my engine is cool to turbo?
 

oooh theres a reason,
I dont really feel like putting in a new headgasket.
I'm going to retorque my headbolts tonight,
then monitor my levels, if its gone down again after say 2 weeks.. then somethings definetely up.

I'll check my water pump too :)
but if the water pump is ok, then i'm not sure wtf is goin on.

Do you think it must be the headgasket in that case?
(ok i dont mind replacing it that much, never removed a head and i'd like to learn).

Re:would you say my engine is cool to turbo?
 

bah,
well I checked the headbolts,
they were all already at or above the 49lb's required.

I suppose I could have tried untorqueing them then retorqueing them down.. but was kinda scared that that'd cause more problems.

SOOooo.. i duno.

Re:would you say my engine is cool to turbo?
 

Detorquing and retorquing would not solve the problem of a headgasket, that would probably make it worse. Like someone else said, have you changed the oil since the coolant started leaking?

Re:would you say my engine is cool to turbo?
 

tighten them some more, like 60lbs

Re:would you say my engine is cool to turbo?
 

I wouldnt do that. Thatd be a bitch if you broke one and had to remove it from the head. Yeah how does the oil look? And how rapidly are you losing coolant?

Re:would you say my engine is cool to turbo?
 

changed oil a few times,
it doesnt look bad, never has a milky color to it.
always brown/black(once its realy dirty, hehe).

BUT I FOUND A LEAK!!!

definetely! it must only be after driving the car, or during, because theres never a puddle when it sits,
but I jacked up my car today right after driving it, and there was some slight drippage coming from the crankpulley side ofthe engine,

actually a drip from RIGHT underneath the crank pulley!

anyone know where the water pump is located??

thanks

Re:would you say my engine is cool to turbo?
 

Eh? Are you being serious? ???
http://pic1.picturetrail.com/VOL111/...8/44745360.jpg :P
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Re:would you say my engine is cool to turbo?
 

lol, nice doc!

Re:would you say my engine is cool to turbo?
 

Re:would you say my engine is cool to turbo?
 

oh I was very serious!
thanks for the doc :)
'im pretty damn sure its the water pump now,
because thats the exact area its coming from(although the belt cover is there so its kinda dripping down through that).

I'm no mechanic, I'm basically learning as I go,
so I know only what I've had to learn.
never had to mess with the water pump at all, so had no reason to know where it was.

Re:would you say my engine is cool to turbo?
 

I was just messin' with ya. ;)

It's probably leaking out of the weep hole(located on the water pump :P ). It leaks out of this when the seal goes bad. It could also just be the gasket. Either way you're in for a fight taking the timing cover off to get to it. :-\ If you're no mechanic then I suggest you pick up a manual and figure out how to do it because a shop will bend you over and stick it in dry to change the water pump.
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Re:would you say my engine is cool to turbo?
 

i thought u said you wernt leaking a drop on the ground?

i wouldnt turbo the engine, if you are learning as you go. because you will end up learning howto rebuild an engine real soon like that. read up more before you turbo it. you dont want to have any cooling issues with your car before, or after you turbo it. so make sure everything is top notch ;)

Re:would you say my engine is cool to turbo?
 

Ah ok, so if its the weep hole, then I'd need an entire new water pump?
I saw this on ebay, price is VERY right!
not sure if it comes with a new gasket though, i'd want that. what do you think?
http://cgi.ebay.com/ebaymotors/ws/eB...category=33604

and, dont wory guys,
i'm no mechanic, but i'm not inept.
pretty sure I should be able to do the pump replacement fine.

I had a delta 272 cam in there for a while, that I put in and took out myself. As I said I learn as I go,
I learned a crapload doing that. Although its probably why my waterpump is bad, haha.
I tried starting the car with the dizzy flipped 180 a buncha times before I figured what the prob was(naturally it wont start up like that), and I read somewhere that can damage the waterpump!

OH and yes, I almost never notice puddles under my car.
from what i've read the water pump will only leak when the car is running, and usually I only check under the car when i'm working on it.. and I pull it off the street to do that.. SOOooo if there was a puddle left right after I turn it off, it gets left behind on the street :)

WHOOO! lotsa typin, hopefullly you guys understand the Tadman now, haha.

Re:
 

[quote= ]

Good luck. lol

Re:
 

thanks

now what about that waterpump on ebay i mentioned?

Re:would you say my engine is cool to turbo?
 

It looks good. I'd try to get it for $9.99 plus shipping. Even at the Buy it now price it's a good deal. No gasket though. :-\
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Re:would you say my engine is cool to turbo?
 

if you use buy it now. you will be paying the same price if you would win it for 9.99 and most (99.9%) water pumps come with the gasket.

Re:would you say my engine is cool to turbo?
 

Bullshit, you save a penny. :P I don't know what I was thinking. :-[ And to think, math is my strong subject. ::)

It doesn't list a gasket so I am assuming it doesn't come with it. :-\
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Re:would you say my engine is cool to turbo?
 

I emailed the seller,
he says it DOES in fact come with a gasket :)

I think i'll be all over this one.

Re:would you say my engine is cool to turbo?
 

Cool. What the hell are you waiting for? :P
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Re:would you say my engine is cool to turbo?
 

bought it up, lickety split ;)

Re:would you say my engine is cool to turbo?
 

There it is! I've been looking to do the bucket mod for months, but couldn't find it. thanks doc! lol j/k ;D

Re:would you say my engine is cool to turbo?
 

aah ----
well now I cant get my damn crank pulley bolt off >:(

Re:would you say my engine is cool to turbo?
 

regardless of what anyone posts after this, if you want to keep your sanity, you need a good (can't stress that enough) impact wrench and compressor. A crappy wrench or a compressor that doesn't supply enough cfm will just give you headaches. Any other method is more trouble than it is worth. Borrow some tools. Or take the starter off... ::)

Re:would you say my engine is cool to turbo?
 

yeah, after doing some research,
its becoming aparent that I definetely cant get it off with my current toolset.

I might just take it to a shop and have them loosen it,
then put it on tight enough for me to get home, and i'll do the rest.

what did you mean about taking the starter off?
hows that gonna help?

Re:would you say my engine is cool to turbo?
 

Well, the only option without air tools is to use something to hold the pully still while you put A LOT of pressure on the bolt to turn it. and don't forget, it turns the opposite way from a "normal" (non-honda) pulley - the bolt turns counter-clockwise if I remember correctly. You don't want to make your job harder by tightening it accidentally! Anyway, one thing you can try is using a strap wrench on the pully. Don't bother with nylon or rubber, look for a chain big enough to fit over the pully. I couldn't even find one when I looked here. Or, you can take off the starter and stick something in the flywheel to keep it from turning. Not worth it IMO. Just use an impact wrench, or don't bother - unless you are very mechanically inclined and don't mind a lot of extra work.

Re:would you say my engine is cool to turbo?
 

well I after a bunch of trial/error,
I found a pretty friggin sweet way to lock the pulley in place.

I just jammed one of the metal rods from a honda car jack into one of the holes in the pulley, It went though and then when the pulley turns, the rod hits the bottom of the block/top of oil pan, and locks it.

But now you say the bolt turns opposite?
well.. that doesnt say much to me, it will turn both ways..
but which way tightens and which way loosens is the question.
I assumed its like any other bolt in the known universe,
and counter clockwise loosens it(assuming the pulley itself is locked in position).
am I wrong?

Re:would you say my engine is cool to turbo?
 

Interesting. I'm pretty sure my pulley doesn't have the holes you mentioned. I'll have to check some time. Anyway, yes, I think that is correct, altho (and someone correct me if I'm wrong) on every other CRANK PULLY in the known universe, it is the opposite. That is because it has to be the opposite of the spin of the pulley so it doesn't unfasten itself. On a honda, if you don't know this, you just luck out. Or, if you know crank pulleys, but don't know honda, you are up a creek, jumping up and down on a breaker bar all day. lol

Re:would you say my engine is cool to turbo?
 

well I went ahead and had a local shop loosen the bolt for me. they charged me $35 bux though :(

then I went ahead and did the rest myself..
DAMN what a P.I.T.A.!!!
messing with the timing belt is definetely something you want to do with the engine out of the car.

argh.

I retorqued the pulley bolt to 100lbs, although its recommended like 140 or so.

hopefully things should be all good now...
too bad i'm burning oil too :( :( :(!! >:( >:( :'( :'(