SF Bay Area Intake Refresh Double Check??
02-06-2011, 03:42 PM
#1
Rennlist Member
Thread Starter
SF Bay Area Intake Refresh Double Check??
With the 1.5 good hands I have (still recovering on the left) I got to the point where the intake is resting on the gasket now.
Everything SEEMS plugged in underneath, vac hoses routed out from under, fuel lines all R&R'd and tight (cept rails, not on yet).
Dinner's in this of course..if someone doesnt mind the fun-run up Highway9 out in the Santa Cruz Mtns some evening.
Without Dwayne's writeup, I would -not- have done this myself, and without his resources and othes, I would NOT have bought a 928...but that help makes it possible for most anything to be DYI.
Two things:
1) I found it easy to leave the AFM air-guide cowl connected all of it's hoses, but loose from the throttle body itself, and snap..I can reach up and plug in the ISV just fine. Discovered that on disassemble when it that guide was loose enough to fall off..and thats how I pulled it apart.
2) The hose (928 107 313 02) from the guide to the oil filler neck..sits in slight interferrence with the pass side head where the intake bolts down. It needed a little guidance to slip down under that ledge..but still provides just a tad of push on the manifold to the drives side..not much, but the way that hose comes off the 'Y' off the guide..appears very tight. Is that normal?
But ya..Im an OK wrench, and would 'preciate if someone could, some idea if Id done it all right, and I wont be a fireball 10mi down the road later.
It's been...since before the wife and I met since I bought a car that I _really_ enjoyed just standing and looking at..and she's now warmed up to the egg-car too.
I have to massively thank these people/resources at this point, in no specific order:
Dwayne
928sRus
928Int
Mike LaBranch (convincing me im not an idiot sometimes)
The Search Engine (For not calling me names for asking dumb questions)
Google (For motivation on slow days while healing and couldn't work on car, providing a view of the future with my 928)
Everything SEEMS plugged in underneath, vac hoses routed out from under, fuel lines all R&R'd and tight (cept rails, not on yet).
Dinner's in this of course..if someone doesnt mind the fun-run up Highway9 out in the Santa Cruz Mtns some evening.
Without Dwayne's writeup, I would -not- have done this myself, and without his resources and othes, I would NOT have bought a 928...but that help makes it possible for most anything to be DYI.
Two things:
1) I found it easy to leave the AFM air-guide cowl connected all of it's hoses, but loose from the throttle body itself, and snap..I can reach up and plug in the ISV just fine. Discovered that on disassemble when it that guide was loose enough to fall off..and thats how I pulled it apart.
2) The hose (928 107 313 02) from the guide to the oil filler neck..sits in slight interferrence with the pass side head where the intake bolts down. It needed a little guidance to slip down under that ledge..but still provides just a tad of push on the manifold to the drives side..not much, but the way that hose comes off the 'Y' off the guide..appears very tight. Is that normal?
But ya..Im an OK wrench, and would 'preciate if someone could, some idea if Id done it all right, and I wont be a fireball 10mi down the road later.
It's been...since before the wife and I met since I bought a car that I _really_ enjoyed just standing and looking at..and she's now warmed up to the egg-car too.
I have to massively thank these people/resources at this point, in no specific order:
Dwayne
928sRus
928Int
Mike LaBranch (convincing me im not an idiot sometimes)
The Search Engine (For not calling me names for asking dumb questions)
Google (For motivation on slow days while healing and couldn't work on car, providing a view of the future with my 928)
Last edited by Speedtoys; 02-06-2011 at 04:04 PM.
02-06-2011, 05:33 PM
#2
Race Director
Jeff
While the 928 appears intimidating to work on....especially with its "reputation" of being expense to fix and hard to work on....but in reality its not....when I bought my 1st 928 my wrenching ability was maybe changing oil....after years of ownership and the help of this list I am now comfortable doing much of the work myself..... You will get there too...you just gotta do it!! Of course Dwaynes write ups with great pics help immensely too
While the 928 appears intimidating to work on....especially with its "reputation" of being expense to fix and hard to work on....but in reality its not....when I bought my 1st 928 my wrenching ability was maybe changing oil....after years of ownership and the help of this list I am now comfortable doing much of the work myself..... You will get there too...you just gotta do it!! Of course Dwaynes write ups with great pics help immensely too
02-06-2011, 11:28 PM
#3
Rennlist Member
Join Date: Sep 2007
Location: Ridgecrest, California
Posts: 1,363
Likes: 0
Received 143 Likes
on
28 Posts
Hi Jeff,
Good idea on leaving the air guide disconnected to get at the ISV connector. Hopefully, I'll be putting mine back together in a few weeks and I'll try it.
You're right about the tight fit of the air guide-to-oil filler hose. Once you get it down past that ledge, it's fine. Not sure about the tight fit at the "Y" at the air guide. I recall the hose clamps on the air guide connector are tight clearance, tho.
Your engine is looking GREAT - soon you will be enjoying the fruits of your labor - ENJOY!
Thanks for the kind words.
Good idea on leaving the air guide disconnected to get at the ISV connector. Hopefully, I'll be putting mine back together in a few weeks and I'll try it.
You're right about the tight fit of the air guide-to-oil filler hose. Once you get it down past that ledge, it's fine. Not sure about the tight fit at the "Y" at the air guide. I recall the hose clamps on the air guide connector are tight clearance, tho.
Your engine is looking GREAT - soon you will be enjoying the fruits of your labor - ENJOY!
Thanks for the kind words.
02-06-2011, 11:36 PM
#4
Rennlist Member
Thread Starter
Hi Jeff,
Good idea on leaving the air guide disconnected to get at the ISV connector. Hopefully, I'll be putting mine back together in a few weeks and I'll try it.
You're right about the tight fit of the air guide-to-oil filler hose. Once you get it down past that ledge, it's fine. Not sure about the tight fit at the "Y" at the air guide. I recall the hose clamps on the air guide connector are tight clearance, tho.
Your engine is looking GREAT - soon you will be enjoying the fruits of your labor - ENJOY!
Thanks for the kind words.
Good idea on leaving the air guide disconnected to get at the ISV connector. Hopefully, I'll be putting mine back together in a few weeks and I'll try it.
You're right about the tight fit of the air guide-to-oil filler hose. Once you get it down past that ledge, it's fine. Not sure about the tight fit at the "Y" at the air guide. I recall the hose clamps on the air guide connector are tight clearance, tho.
Your engine is looking GREAT - soon you will be enjoying the fruits of your labor - ENJOY!
Thanks for the kind words.
For now..Im running without the air pump..my smog guy..been using him forever..hes doesnt care..so it'll be easy to get past the issue if ever called on it..so I plugged the under TB vac port for the air pump bypass for now.
REALLY hoping I have not missed anything...
Id love to take the day off tomorrow to finish it..
Hopefully..just be driving the car lots..things stay fresh and im not back in there for a long long time.
When the new Roger gears are ready..the WPTB job is next. I have everything I need but those..and no hurry for now. Visually I know the gears are worn a little, not bad, and belt is visually good, and in tension according to the tool.
I spose I should have done the GTS throttle sensor mod..but.....I didnt put any real thought into it until last week...so I did not.
02-07-2011, 02:58 AM
#5
Under the Lift
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Jeff:
If you are going to be home Monday, I can come down and help you check things over. That hose is a well known (to me) potential gotcha. I meant to mention that when we were up at Thunderhill last weekend. There's only one correct position. If the throttle moves easily, you likely have it right. In the past, I've bolted everything down only to find that that hose was binding on the bellcrank. And the fit is so tight that the intake must be loosened and lifted to relocate the hose. Other than that, be sure to fit the hose from the gas vapor recirculation system to the front of the throttle housing and route the vacuum line from the bottom of throttle housing out through the passenger fuel rail and the other line out the rear to the air pump diverter valve and the flappy line out through the water bridge as you drop the intake in. They'll be hard to get to once the intake is down.
Let me know if you want me to come down. It would be a nice opportunity to put some miles on my Daytona 675 or one of the other bikes.
If you are going to be home Monday, I can come down and help you check things over. That hose is a well known (to me) potential gotcha. I meant to mention that when we were up at Thunderhill last weekend. There's only one correct position. If the throttle moves easily, you likely have it right. In the past, I've bolted everything down only to find that that hose was binding on the bellcrank. And the fit is so tight that the intake must be loosened and lifted to relocate the hose. Other than that, be sure to fit the hose from the gas vapor recirculation system to the front of the throttle housing and route the vacuum line from the bottom of throttle housing out through the passenger fuel rail and the other line out the rear to the air pump diverter valve and the flappy line out through the water bridge as you drop the intake in. They'll be hard to get to once the intake is down.
Let me know if you want me to come down. It would be a nice opportunity to put some miles on my Daytona 675 or one of the other bikes.
02-07-2011, 02:55 PM
#6
Rennlist Member
Thread Starter
Jeff:
If you are going to be home Monday, I can come down and help you check things over. That hose is a well known (to me) potential gotcha. I meant to mention that when we were up at Thunderhill last weekend. There's only one correct position. If the throttle moves easily, you likely have it right. In the past, I've bolted everything down only to find that that hose was binding on the bellcrank. And the fit is so tight that the intake must be loosened and lifted to relocate the hose. Other than that, be sure to fit the hose from the gas vapor recirculation system to the front of the throttle housing and route the vacuum line from the bottom of throttle housing out through the passenger fuel rail and the other line out the rear to the air pump diverter valve and the flappy line out through the water bridge as you drop the intake in. They'll be hard to get to once the intake is down.
Let me know if you want me to come down. It would be a nice opportunity to put some miles on my Daytona 675 or one of the other bikes.
If you are going to be home Monday, I can come down and help you check things over. That hose is a well known (to me) potential gotcha. I meant to mention that when we were up at Thunderhill last weekend. There's only one correct position. If the throttle moves easily, you likely have it right. In the past, I've bolted everything down only to find that that hose was binding on the bellcrank. And the fit is so tight that the intake must be loosened and lifted to relocate the hose. Other than that, be sure to fit the hose from the gas vapor recirculation system to the front of the throttle housing and route the vacuum line from the bottom of throttle housing out through the passenger fuel rail and the other line out the rear to the air pump diverter valve and the flappy line out through the water bridge as you drop the intake in. They'll be hard to get to once the intake is down.
Let me know if you want me to come down. It would be a nice opportunity to put some miles on my Daytona 675 or one of the other bikes.
I was JUST about to update this thread on that hose from the TB Y to the oil neck..
I fought with it for a while.
It loves to sit in interference with the throttle body mechanism.
Seemed that the BEST place for it, was to wedge kinda beside the end cap of the throttle spring in the recess under the lip of the intake ports on the manifold.
The green path is what works best..the end cap on the TB spring assy secures the hose in tight, and no moving parts come to it.
The RED path is what you think would work best, and what the hose tries to do if you dont watch..it ends up going under the throttle spring arms..and will make WOT harder and -then- snag it..hard.
A redesign of this, would have the port for that hose drop straight DOWN and run the length of the valley in the gobs of free airspace available, not along side the edge of the head, and forced into a bad place by the throttle body chamber.
Once I worked that out, nothing seemed 'in the way' of the intake manifold, and it sat fully on the intake gaskets without wobbling anywhere.
But..I fired up at 4:01am, and in only short a hose clamp in getting over lunch today.
