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 The How To 16V Water Pump Conversion On 20V EngineFirst  1 2 3 4 5 >  Last
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mr john




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3496 posts [100%]
san diego ca

 The How To 16V Waterpump Conversion On 20V Engine Reply  Edit


so it seems like alot of people want answers to this question. ive done this conversion about a dozen times now without any issues and have found that this is the cleanest and simplest way to do this. heres what ive got:

first step is to remove the head from the engine and clean all the oil residue off

then grab your handy dandy die grinder with alluminum bit and grind a passage between the two water ports



now block of the remaining ports, if you want to run factory sensors they can be mounted to these plates or upper radiator hose, you can also run heater lines here.

now reinstall the head using a 16v headgasket.

the 16v water pump has two extra passeges, one for the heater and one for the thermostat bypass. i always remove these by torching them and pulling them out. i then weld up the holes. you can leave the heater passage if you plan on keeping your heater.i also take the factory hard line from the 20v pump from the back of the pump to the cylinder head and cut the flange off, then weld the 90 degree end of it back on to make an upper hose:

to use the factory 16v crank pulley about 1/16 inch needs to be shaved off the back to allign with the 16v alternator and water pump.

thats about it. if you guys have any questions or need more details feel free to ask



Modified by mr john at 8:42 PM 1/15/2009



JSP http://www.jspfab.com

custom fabrication, custom tig welding applications
turbo manifolds, headers, exhaust systems
stand alone ecu wiring, custom wiring harnesses, and wire harness tucks

2588 progress st suite 3
vista ca, 92081 619-788-3415
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m4nfred




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490 posts [94%]
Miramar Fl

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and if u use a 20v headgasket????



THE 86 LIFE!!!
mr john




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3496 posts [100%]
san diego ca

 Re: (m4nfred) » Reply  Edit


Quote, originally posted by m4nfred »
and if u use a 20v headgasket????

it works fine too, ive used both but in theory the 16v gasket flows the correct direction. the holes for coolant passage are on the opposite side.



JSP http://www.jspfab.com

custom fabrication, custom tig welding applications
turbo manifolds, headers, exhaust systems
stand alone ecu wiring, custom wiring harnesses, and wire harness tucks

2588 progress st suite 3
vista ca, 92081 619-788-3415
by appointment only



Point Dexter




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1149 posts [100%]

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Fantastic! Mr.John:1; relocation kit:0



Your friendly neighbourhood Machinist/Gas Turbine Engine Technician
trdslut




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583 posts [96%]

 Re: THE HOW TO 16V WATER PUMP CONVERSION ON 20V ENGINE (mr john) » Reply  Edit


how much will you charge to do your cooling setup to my 20v.
w.tungsten


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133 posts [100%]
Ann Arbor MI

 Re: THE HOW TO 16V WATER PUMP CONVERSION ON 20V ENGINE (mr john) » Reply  Edit


are you putting your sensors in line to the radiator?
mr john




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3496 posts [100%]
san diego ca

 Re: THE HOW TO 16V WATER PUMP CONVERSION ON 20V ENGINE (trdslut) » Reply  Edit


Quote, originally posted by trdslut »
how much will you charge to do your cooling setup to my 20v.

i charge 300 bucks to do all of the work to the head if you bring in all the parts. machining the crank pulley is 60 bucks (thats what the machine shop charges me..i dont make money off this)

on my car i run the water temp sensors in the upper radiator hose neck

usually for customers that want to run the factory ecu and sensors i put them in the back of the head where they go from the factory. the fan switch, gauge cluster sensor, and standard coolant temp sensor all go in the back.



JSP http://www.jspfab.com

custom fabrication, custom tig welding applications
turbo manifolds, headers, exhaust systems
stand alone ecu wiring, custom wiring harnesses, and wire harness tucks

2588 progress st suite 3
vista ca, 92081 619-788-3415
by appointment only



THE REDLINE 03




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197 posts [100%]
Coral Springs FL

 Re: THE HOW TO 16V WATER PUMP CONVERSION ON 20V ENGINE (mr john) » Reply  Edit


Once again Mr. John saves the day .




"Racing is Life! Anything that happens before or after is just waiting." - Steve McQueen
Barry
Moderator - 9,500RPM club



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6232 posts [100%]
hellaNORCAL

  » Reply  Edit


FWD does not need to do this. Use the factory coolant flow for FWD.



-barry

9500RPM Club...4AGE

wtb: AE86 16v intake box and arm.

LOTS of parts for sale, tools, AE101, AE86, jubride, RSR, TRD:
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trdslut




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583 posts [96%]

 Re: THE HOW TO 16V WATER PUMP CONVERSION ON 20V ENGINE (mr john) » Reply  Edit


wow thats cheap thank you i will see you soon thank you.
hahaboy


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63 posts [100%]

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mr.john, can i use back 20v waterpump and alternator ?
Point Dexter




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1149 posts [100%]

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This is off topic but I was meaning to ask you how your VR(?) sensor is hooked up? Or if it's not a sensor, wth is it?




Your friendly neighbourhood Machinist/Gas Turbine Engine Technician
jibber86


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1377 posts [94%]
CA

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nice write up.
m4nfred




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490 posts [94%]
Miramar Fl

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its a visual sensor i think, haltechish stuff



THE 86 LIFE!!!
me43


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1002 posts [99%]
Honolulu hi

 Re: (Point Dexter) » Reply  Edit


Quote, originally posted by Point Dexter »
This is off topic but I was meaning to ask you how your VR(?) sensor is hooked up? Or if it's not a sensor, wth is it?

thats a hall effect sensor


Point Dexter




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1149 posts [100%]

 Re: (me43) » Reply  Edit


Ah i see

Automotive ignition and fuel injection

If the magnetic field is provided by a rotating magnet resembling a toothed gear, an output pulse will be generated each time a tooth passes the sensor. This is used in modern automotive primary distributor ignition systems, replacing the earlier contact breaker ('points', which were prone to wear and required periodic adjustment and replacement). Similar sensor signals are used to control multi-port sequential fuel injection systems, where each cylinder's intake runner is fed fuel from an injector consisting of a spray valve regulated by a solenoid. The sequences are timed to match the intake valve openings and the duration of each sequence by the Engine Control Unit (computer).

Very cool Mr.John



Your friendly neighbourhood Machinist/Gas Turbine Engine Technician
m4nfred




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490 posts [94%]
Miramar Fl

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so know that ur not using that header.....HOW MUTCH??????????



THE 86 LIFE!!!
pinoy_dorifto




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984 posts [96%]
Los Angeles CA

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this is off topic..

mr.john, what kind of fan are you using???



-=[Dapat mabilis para hinde mahuli ng pulis]=-

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m4nfred




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490 posts [94%]
Miramar Fl

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maybe a stock honda one in that pic........how bout that header...how mutch???lol



THE 86 LIFE!!!
mr john




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3496 posts [100%]
san diego ca

 Re: (m4nfred) » Reply  Edit


Quote, originally posted by m4nfred »
maybe a stock honda one in that pic........how bout that header...how mutch???lol

haha, mild steel is 800, stainless is 1100



JSP http://www.jspfab.com

custom fabrication, custom tig welding applications
turbo manifolds, headers, exhaust systems
stand alone ecu wiring, custom wiring harnesses, and wire harness tucks

2588 progress st suite 3
vista ca, 92081 619-788-3415
by appointment only



m4nfred




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490 posts [94%]
Miramar Fl

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u dont have one thats like....overly used lol



THE 86 LIFE!!!
fishtail


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101 posts [100%]

 Re: (m4nfred) » Reply  Edit


hey john i'm currently using a 16v waterpump on my 20v, it didn't fit, but i managed to shave some metal off for it to fit. but my engine hasn't started yet, is it not possible to use a 16v pump, w/o ur mod?
mr john




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3496 posts [100%]
san diego ca

 Re: (fishtail) » Reply  Edit


Quote, originally posted by fishtail »
hey john i'm currently using a 16v waterpump on my 20v, it didn't fit, but i managed to shave some metal off for it to fit. but my engine hasn't started yet, is it not possible to use a 16v pump, w/o ur mod?

yes but you have to find a way to connect the two rear water passages together so that water flows between them, kind of like the water line kits that are available, my way is just less expensive and allows you to use the 16v pump instead of the 20v one.



JSP http://www.jspfab.com

custom fabrication, custom tig welding applications
turbo manifolds, headers, exhaust systems
stand alone ecu wiring, custom wiring harnesses, and wire harness tucks

2588 progress st suite 3
vista ca, 92081 619-788-3415
by appointment only



fishtail


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101 posts [100%]

 Re: (mr john) » Reply  Edit


i did drill 3 pin sized holes in the rear to let water through like the post old post recommended. i think that should be sufficient
Hachi_Drifter


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104 posts [100%]
Atlanta Ga

  » Reply  Edit


about your 16 valve water pump converson. i didnt see anywhere to connect the heater. what would u recommend me to do about the heater
m4nfred




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490 posts [94%]
Miramar Fl

  » Reply  Edit


so no deal for the used header...damn



THE 86 LIFE!!!
hahaboy


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63 posts [100%]

  » Reply  Edit


mr.john, which exhaust system best for low-mid rpm range, 4-2-1 or 4-1 ? or long length 4-2-1?
w.tungsten


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133 posts [100%]
Ann Arbor MI

  » Reply  Edit


Can you post more pictures of the flange and neck that come out of the head. Following your instructions and reusing the 90degree bend, causes the pipe to not completely cover the hole. What did you use to fill the remaining gap?
mr john




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3496 posts [100%]
san diego ca

 Re: (w.tungsten) » Reply  Edit


Quote, originally posted by w.tungsten »
Can you post more pictures of the flange and neck that come out of the head. Following your instructions and reusing the 90degree bend, causes the pipe to not completely cover the hole. What did you use to fill the remaining gap?

the reamining gap is just filled when welding, you just have to make multiple passes.

as far as a heater, you can simply just not remove the heater line from the thermostat housing on the water pump and just plumb a return line for the heater into the back of the head into one of the blocked off passages.

Modified by mr john at 3:35 AM 5/20/2007



JSP http://www.jspfab.com

custom fabrication, custom tig welding applications
turbo manifolds, headers, exhaust systems
stand alone ecu wiring, custom wiring harnesses, and wire harness tucks

2588 progress st suite 3
vista ca, 92081 619-788-3415
by appointment only



Navi


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593 posts [99%]

  » Reply  Edit


might be a dumb question, but what is the adfvantage of using a 16v waterpump on a 20v!?

whats wrong with the stock one, i dont believe the 16v stock is so much better?

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