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Bypass Cap

crosson9

By crosson9
in BMW 2002 and other '02

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crosson9 Enthusiast

crosson9

Posted
Posted

Hi Everyone!

         Replacing the water pump on my 02 and noticed that a bypass cap was used to block off one of the outlets. What was used was a 3/4" cap which is in bad shape, so I would like to use a proper fit 1" cap. Local autozone does not carry a 1". Any suggestions where to get one or other options? Thank you guys, you always have the answers. -T.J.

-T.J.

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Guest_anonymous Grand Master

Guest_anonymous

Posted
Posted (edited)

So you do not have heater box circulation?

If you have a heater box, just as easy to get the bypass tube and hook it up proper.

post-39486-0-29432700-1386427269_thumb.j

post-39486-0-44329000-1386427295_thumb.j

Edited by daron

'74 Turkis
http://www.bmw2002faq.com/topic/122840-turkis-toothless/?hl=turkis+toothless#entry23722

'72 Inka Tii

https://www.bmw2002faq.com/forums/topic/224467-inka-tii/

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jimk Grand Master

jimk

Posted
Posted (edited)

I don't see where crosson9 has stated whether he has sidedrafts or a downdraft carb.  If a downdraft, then he has no manifold heating now.  If not then plumb it up as supposed to be.

Edited by jimk

A radiator shop is a good place to take a leak.

 

I have no idea what I'm doing but I know I'm really good at it.

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TobyB Grand Master

TobyB

Posted
Posted

I've used 2 approaches with that- either use a short piece of hose and an internal plug that fits inside the hose,

or run the rubber line forward, then splice into the heater line that goes to the back of the head.  I put a small

restrictor in there, as it's a 'heat leak' but I found that it helped with bleeding the air out of the head.

 

I've never seen those caps for cooling systems, and using household plumbing on cooling systems would make me a bit nervous.

 

hth

 

t

"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

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roadhog0 Grand Master

roadhog0

Posted
Posted

TobyB, what would be an internal cap? links or pics to give a clear idea. Thanks you all for your input on this!

 

Also, hose clamps. Some better than others or are they all the same?

 

Piece of rubber hose and a bolt of your choice that fits...

-Nathan
'76 2002 in Malaga (110k Original, 2nd Owner, sat for 20 years and now a toy)
'86 Chevy K20 (6.2 Turbo Diesel build) & '46 Chevy 2 Ton Dump Truck
'74 Suzuki TS185, '68 BSA A65 Lightning (garage find), '74 BMW R90S US Spec #2

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