Hi,

I need to know the size of sealing washer I need for the coolant drain plug on the block of my D15B7 engine. I need to go get a new one so I can go ahead and change my coolant. What should be the overall diameter and that of the whole the bolt passes through?

Also, are there any other methods that I could use, besides having to remove that drain plug, to drail ALL of the coolant out of the block?

Thanks!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Paprika &raquo;</TD></TR><TR><TD CLASS="quote">Also, are there any other methods that I could use, besides having to remove that drain plug, to drail ALL of the coolant out of the block?
</TD></TR></TABLE>
Yes, there are two other bolts. One is to the left of the oil filter. I don't remember where the other is.

 

Go to Honda.



I'm guessing you want #29?

90401-PR4-000 WASHER, SEALING (28MM) $1.85

I doubt it's a basic washer. If you have ever looked at a oil pan drain bolt washer or a transmission drain bolt washer, it seems to have 2 sides. One looks to be made of metal and the other side seems to be made of a softer material that compresses once it's tightened down in order to stop leaks.

You DO NOT want to have coolant fluid issues, especially from the block.

 

ou can see it here. The upper part looks solid and the lower doesn't.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dimi &raquo;</TD></TR><TR><TD CLASS="quote">Go to Honda.



I'm guessing you want #29?

90401-PR4-000 WASHER, SEALING (28MM) $1.85

I doubt it's a basic washer. If you have ever looked at a oil pan drain bolt washer or a transmission drain bolt washer, it seems to have 2 sides. One looks to be made of metal and the other side seems to be made of a softer material that compresses once it's tightened down in order to stop leaks.

You DO NOT want to have coolant fluid issues, especially from the block.</TD></TR></TABLE>
Sounds like a good plan, I just hope my half-assed local Honda dealer has one. Yes, I do notice the sealing washers are Half & Half too, I was going to go get one at Autozone but Honda is probably a better choice.

I like that clear diagram, the ones on Honda Automotive Pars.com are not very clear. What site is that from?

REGUARDING THE OTHER COOLANT DRAIN LOCATIONS:
Do they all seal w/ the same type of washer? If not I need to know of all three drain locations so I can use the best one. I don't want to be messing around w/ that one by the Exhaust if I don't have to.

 

http://www.slhondaparts.com

Good site, good prices, good shipping.

 

REGUARDING THE OTHER COOLANT DRAIN LOCATIONS:
Do they all seal w/ the same type of washer? If not I need to know of all three drain locations so I can use the best one. I don't want to be messing around w/ that one by the Exhaust if I don't have to.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by litterbox &raquo;</TD></TR><TR><TD CLASS="quote">
Yes, there are two other bolts. One is to the left of the oil filter. I don't remember where the other is.</TD></TR></TABLE>

According to my Helms, this is the only bolt location. I suppose there could be others, but that's the only one indicated for changing coolant in the manual. The washer would be #29, and it's a crush washer, so you need to get it from honda.

The other location is the bottom of the radiator, and it doesn't have a washer to be replaced, it's plastic with a rubber O ring.

 

in the head behind the cam shaft gear t-belt side

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Puck_tlh &raquo;</TD></TR><TR><TD CLASS="quote">in the head behind the cam shaft gear t-belt side</TD></TR></TABLE>

There's a drain plug for the coolant in the cylinder head? Never aware of that.

 

buy it from the dealer - guaranteed to fit...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dimi &raquo;</TD></TR><TR><TD CLASS="quote">There's a drain plug for the coolant in the cylinder head? Never aware of that.</TD></TR></TABLE>

I don't think it's a drain plug, but there is definately a frieze plug under the dizzy that you can use for coolant pressure/temperature gauge sensors. I assume you could drain coolant out of there as well, but there's usually not a whole lot of coolant in the head after the car sits for a while, so meh.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Archidictus &raquo;</TD></TR><TR><TD CLASS="quote">

I don't think it's a drain plug, but there is definately a frieze plug under the dizzy that you can use for coolant pressure/temperature gauge sensors. I assume you could drain coolant out of there as well, but there's usually not a whole lot of coolant in the head after the car sits for a while, so meh.</TD></TR></TABLE>

What I was going to say after he responded. I doubt there's a need for that.

Just pull the block drain and be done.

 

I'm still trying to find more tool components that will allow me to each and it get proper leverage. So I am at a lost atm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Paprika &raquo;</TD></TR><TR><TD CLASS="quote">I'm still trying to find more tool components that will allow me to each and it get proper leverage. So I am at a lost atm</TD></TR></TABLE>

Re-word this sentence. I just got a headache.

 

wouldn't make sense to try to drain coolant from the head, its too high in the system to drain the block

best way is to pop off the drain bolt in the front of the block

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dimi &raquo;</TD></TR><TR><TD CLASS="quote">

Re-word this sentence. I just got a headache.</TD></TR></TABLE>

lol I need a ratchet with a long handle on it so I can get some small-space leverage against that bolt.