 another noob "what is this" question |
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| ericoneal |
 Nov 26 2012, 11:27 AM
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#1
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Member  Group: Members Posts: 320 Joined: 13-August 12 From: Crestwood, KY Member No.: 14,795 Region Association: South East States  |
What is the silver box attached to the firewall with the three hoses coming out of it? By the way, this is NOT my car.
(IMG:http://www.914world.com/bbs2/uploads_offsite/germancarsforsaleblog.com-14795-1353950858.1.jpg) |
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| Cap'n Krusty |
Nov 26 2012, 11:35 AM
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#2
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
It's a crankcase breather system meant for use with carbs.
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| Bullethead |
Nov 26 2012, 11:37 AM
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#3
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Oil Cooled heart Group: Members Posts: 897 Joined: 24-June 10 From: South Florida Member No.: 11,875 Region Association: South East States 
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| ericoneal |
Nov 26 2012, 11:40 AM
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#4
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Member Group: Members Posts: 320 Joined: 13-August 12 From: Crestwood, KY Member No.: 14,795 Region Association: South East States |
QUOTE(Cap'n Krusty @ Nov 26 2012, 12:35 PM)  It's a crankcase breather system meant for use with carbs. The previous owner has installed a Megasquirt system and I have no carbs. Is this piece still necessary? It seems to have oil running through it. Stumped... |
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| nathansnathan |
Nov 26 2012, 11:51 AM
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#5
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Senior Member Group: Members Posts: 1,052 Joined: 31-May 10 From: Laguna Beach, CA Member No.: 11,782 Region Association: None |
QUOTE(ericoneal @ Nov 26 2012, 09:40 AM) QUOTE(Cap'n Krusty @ Nov 26 2012, 12:35 PM) It's a crankcase breather system meant for use with carbs. The previous owner has installed a Megasquirt system and I have no carbs. Is this piece still necessary? It seems to have oil running through it. Stumped... It takes the place of the pcv system that is part of the stock fi. I assume both lines out the sides are going to the ports in the heads? Probably would be better to plug the ports at the heads and run just the one from the tower to the middle port on the box, the reason being that the tower is meant to be an outlet, the ones at the heads, inlets. Without any help (plumbed to the air fliter[s]), they all end up as outlets. This would be debate-able of course. |
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| ConeDodger |
Nov 26 2012, 11:51 AM
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#6
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Apex killer! Group: Members Posts: 23,622 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California
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QUOTE(ericoneal @ Nov 26 2012, 09:40 AM) QUOTE(Cap'n Krusty @ Nov 26 2012, 12:35 PM) It's a crankcase breather system meant for use with carbs. The previous owner has installed a Megasquirt system and I have no carbs. Is this piece still necessary? It seems to have oil running through it. Stumped... You still want your crankcase to breath right? Two of the hoses come from the head and one from the crankcase itself next to the distributor. It should just be oil mist, anything more would be... disconcerting. Are you going crank fired? If so, Original Customs has a better solution. Plug the heads and use this... Caution though, you must allow the crankcase to breath. Plugging it up will blow seals out. Attached image(s)  
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| type47 |
Nov 26 2012, 11:53 AM
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#7
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
If you have fuel injection (EFI, electronic fuel injection which MS certainly is), then you would vent to the air cleaner housing like the factory EFI system. Your heads should have litte tubes sticking out of the heads, you should be able to see the tubes looking in the engine compartment; and hoses from these tubes should go to an "anti-flashback" valve/connector then a hose to the filter housing. If you still need help finding the vents, search "Dave Darling hose diagram" or such for a pic. At any rate, you need to have a vent "system" as the case produces positive crankcase pressure and that needs to be vented somehow ...
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| ericoneal |
Nov 26 2012, 03:48 PM
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#8
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Member Group: Members Posts: 320 Joined: 13-August 12 From: Crestwood, KY Member No.: 14,795 Region Association: South East States |
QUOTE(type47 @ Nov 26 2012, 12:53 PM) If you have fuel injection (EFI, electronic fuel injection which MS certainly is), then you would vent to the air cleaner housing like the factory EFI system. Your heads should have litte tubes sticking out of the heads, you should be able to see the tubes looking in the engine compartment; and hoses from these tubes should go to an "anti-flashback" valve/connector then a hose to the filter housing. If you still need help finding the vents, search "Dave Darling hose diagram" or such for a pic. At any rate, you need to have a vent "system" as the case produces positive crankcase pressure and that needs to be vented somehow ... Thanks everyone. I will probably just leave it alone for now until I get a better idea of what I am doing and how these engines work. |
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