Author Topic: help needed reassembling my Pagoda Engine  (Read 2458 times)

pauldridge

  • Guest
help needed reassembling my Pagoda Engine
« on: July 23, 2019, 20:11:16 »
It's an old story.. classic car taken apart, then allowed to sit for years.  That's the case for my 1964 230SL roadster, acquired some 10 years ago.  Shortly afterward, I decided to remove the engine for full rebuild, and disassemble the body.  Then I ran out of steam..  The engine DID get rebuilt, but has sat, uninstalled, ever since.  Now I am finally ready to get this baby back on the road.  Although the block and head were fully assembled at overhaul time, I never got around to installing all the hard and soft lines or auxiliary components.

I am now well on the way, and do have lots of photos taken prior to the disassemble.  Sadly, they were not enough, and I have a number of questions regarding routing of lines and placement of components.  I DO want to mention that the P.O. had substituted a 280SL engine in place of the original 2.3, but it was all running and functioning fine when I removed it due to extremely low compression across the board.

Here goes.. hopefully the first two photos will be displayed.. regarding routing of coolant lines, has me scratching my head.  It is unclear how/where to employ that longish metal coolant line with a "Y" at one end?  I can't see any logical place to run that hard line, nor where the various hoses connect.. In particular.. the hose to the remote coolant reservoir, the coolant(?) fitting on the throttle body, and the coolant nipple on the plug-side block, just behind the injector pump. 
Any guidance and/or pictures of these connections would be greatly appreciated.

teahead

  • Associate Member
  • Gold
  • *****
  • USA, WA, Des Moines
  • Posts: 780
  • aka "Rob"
Re: help needed reassembling my Pagoda Engine
« Reply #1 on: July 23, 2019, 20:18:53 »
I just installed this not too long ago since mine was missing and PO used just straight hose.

One end goes to the firewall hose (maybe 6" long of hose).

The other end goes to that Y-fitting.  You'll just need longer hose (maybe 10" worth?).
1970 280SL auto, AC - aka "Edelweiss"

Benz Dr.

  • Vendor
  • Platinum
  • ******
  • Canada, ON, Port Lambton
  • Posts: 7128
  • Benz Dr.
Re: help needed reassembling my Pagoda Engine
« Reply #2 on: July 23, 2019, 20:47:25 »
You have a late 280SL engine in an early 230SL. That could present some interesting challenges.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

Pawel66

  • Full Member
  • Platinum
  • ******
  • Poland, Mazowieckie, Konstancin-Jeziorna
  • Posts: 5154
Re: help needed reassembling my Pagoda Engine
« Reply #3 on: July 23, 2019, 21:07:42 »
Since Benz Dr. says it is a 280SL engine...
The pictures will not help much, but they are the best I have at hand now.
Pawel

280SL 1970 automatic 180G Silver
W128 220SE
W121 190SL
G-class

pauldridge

  • Guest
Re: help needed reassembling my Pagoda Engine
« Reply #4 on: July 24, 2019, 00:37:57 »
Thanks, very helpful indeed
Where your hard coolant pipe goes to the passenger (right) side heater connection in the firewall..does the pipe have a "Y" like the one pictured in my post? If so, where does that Jose connection attach to?

pauldridge

  • Guest
Re: help needed reassembling my Pagoda Engine
« Reply #5 on: July 24, 2019, 00:42:19 »
Yes it's a bag of worms Dan
Can you shed any light on the intended connection to those two rusty outlets shown in the final photo of my initial post? The one hose fitting behind the injector pump is obviously for coolant. The other to the right looks like an oil line fitting?
Phil

Benz Dr.

  • Vendor
  • Platinum
  • ******
  • Canada, ON, Port Lambton
  • Posts: 7128
  • Benz Dr.
Re: help needed reassembling my Pagoda Engine
« Reply #6 on: July 24, 2019, 06:39:12 »
The hose coming off of your water pump connects to the pipe you have on the floor and the Y fitting end goes to the firewall where your heater core is mounted. The other part of the Y goes to the rad overflow tank.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

Benz Dr.

  • Vendor
  • Platinum
  • ******
  • Canada, ON, Port Lambton
  • Posts: 7128
  • Benz Dr.
Re: help needed reassembling my Pagoda Engine
« Reply #7 on: July 24, 2019, 06:45:32 »
Yes it's a bag of worms Dan
Can you shed any light on the intended connection to those two rusty outlets shown in the final photo of my initial post? The one hose fitting behind the injector pump is obviously for coolant. The other to the right looks like an oil line fitting?
Phil

The fitting by the injection pump goes to the heater core pipe on the firewall. The other fitting is where you mount the sending unit for your temp gauge. I use a bit of anti-seize around the gland nut so it doesn't stick to the sending unit bulb. Very easy to twist the capillary tube off otherwise.
« Last Edit: July 24, 2019, 19:44:27 by Benz Dr. »
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

pauldridge

  • Guest
Re: help needed reassembling my Pagoda Engine
« Reply #8 on: July 24, 2019, 13:26:38 »
Thanks Dan,
That is extremely helpful and exactly what I needed.  I had come to the conclusion as well that the other fitting was for a temp sender.
Phil

mbzse

  • Full Member
  • Platinum
  • ******
  • Sweden, Stockholm, Stockholm
  • Posts: 1748
Re: help needed reassembling my Pagoda Engine
« Reply #9 on: July 24, 2019, 14:38:10 »
Quote from: phil auldridge
.../...I have a number of questions regarding routing of lines and placement of components.../...regarding routing of coolant lines, has me scratching my head../...Any guidance and/or pictures of these connections would be greatly appreciated
Here is a sketch of the coolant flow system on a W113 Pagoda. Courtesy of Burkhard Scheiter (Germany).
Water pump is No 50, 91 is the WRD on top of the FI pump "ESP". No 31 is the heating element for the passenger compartment.
No 25 is the butterfly valve/thottle body on the inlet manifold.
Note: there were variants, for instance 250SL had the water/oil cooler
« Last Edit: July 26, 2019, 14:27:21 by mbzse »
/Hans S

pauldridge

  • Guest
Re: help needed reassembling my Pagoda Engine
« Reply #10 on: July 26, 2019, 12:19:19 »
Dan,
You've been very helpful.  Now can you confirm:  That fitting on the throttle body (shown in the accompanying picture just an inch or two from the cut hose off the pump inlet).. is that the vacuum connection for the Power Brakes?

Thanks again,
Phil

Benz Dr.

  • Vendor
  • Platinum
  • ******
  • Canada, ON, Port Lambton
  • Posts: 7128
  • Benz Dr.
Re: help needed reassembling my Pagoda Engine
« Reply #11 on: July 26, 2019, 14:33:36 »
No. The vacuum connection for your brake booster is on top of the intake manifold. I believe it should use a hard plastic line or hose.

 The two connections on your throttle body are coolant lines if that's what you're referring to.
1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC