Fuel Rail Installation HELP!
#32
Drifting
PET has an error showing bonded rubber buffer (part 13, illustration 107-05) that is actually not there. It confused me when I refreshed intake on 1988 S4.
Maybe original poster ordered all parts to renew, and has installed buffers when they were not originally present?
Maybe original poster ordered all parts to renew, and has installed buffers when they were not originally present?
#33
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see post #27 & #30 8>)
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Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission? George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission? George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
#34
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Location: Memphis, TN 1987 S4
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I'm following Dewayne's instructions. My car did not have the rubber intake mounting studs. It just had studs. I remember because it took me half a day to remove them. When I removed the rubber mount and just mounted it with a bolt and nut, it lined up perfectly. Thanks for all of your help. I was really getting frustrated and a call to Roger to see if the rubber mounts came in a thinner size, he enlightened me.
Almost home. Could they have crammed any additional parts under the intake? The car really needed the refresh. The knock sensors were holding on with a few wires. All of the sensor plugs were brittle and broke in my hand. The rubber was surprisingly in good shape.
I just hope it cranks when I get it back together. Tomorrow I'll tackle the vacuum lines.
Thanks guys!
Almost home. Could they have crammed any additional parts under the intake? The car really needed the refresh. The knock sensors were holding on with a few wires. All of the sensor plugs were brittle and broke in my hand. The rubber was surprisingly in good shape.
I just hope it cranks when I get it back together. Tomorrow I'll tackle the vacuum lines.
Thanks guys!
#36
Pro
I'm following Dewayne's instructions. My car did not have the rubber intake mounting studs. It just had studs. I remember because it took me half a day to remove them. When I removed the rubber mount and just mounted it with a bolt and nut, it lined up perfectly.
Thanks guys!
Thanks guys!
Enjoy the rest of your time in there.
#37
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No worries Australia. Thanks for your input. I ordered everything Dewayne changed, so I didn't pay attention to those studs. At this point I'm just hoping it runs.
#38
Team Owner
Up fixin I made that statement because, your advice might get followed,
and I will bet the odds that since pictures are not being posted here, we dont really know whats happening at the work area of the OP.
Now the OP may not be mocking up the intake assembly before its mated to the heads, thus the injectors wont be fitted till the intake has been fitted,
thus the idea that sanding the injector mounting hole might be followed while the intake was installed would not be a good thing to do.
Over the years I have gotten many E mails from owners thanking me for adding in what some seasoned mechanics might take for granted, the little tidbits of info that can save time and prevent damage from rearing its head.
I would suggest that adding info for others to follow should be geared for the most inexperienced as taking for granted what may seem obvious can sometimes lead others into folly.
I am learning everyday from what others post on this site.
I in no way was trying to jab at your contribution.
I was only adding an observation.
and I will bet the odds that since pictures are not being posted here, we dont really know whats happening at the work area of the OP.
Now the OP may not be mocking up the intake assembly before its mated to the heads, thus the injectors wont be fitted till the intake has been fitted,
thus the idea that sanding the injector mounting hole might be followed while the intake was installed would not be a good thing to do.
Over the years I have gotten many E mails from owners thanking me for adding in what some seasoned mechanics might take for granted, the little tidbits of info that can save time and prevent damage from rearing its head.
I would suggest that adding info for others to follow should be geared for the most inexperienced as taking for granted what may seem obvious can sometimes lead others into folly.
I am learning everyday from what others post on this site.
I in no way was trying to jab at your contribution.
I was only adding an observation.
#39
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I know the OP's problem has been solved.
In the spirit of Merlin's last post, though, this ...
... is really not a good idea in general and a very bad idea for a newbie.
The problem with mounting the injectors first is that the only thing that locates the injectors on the Z-axis is the connection to the fuel rail. It is very easy to get an injector in too deep and then it will be hard or impossible to seat the top o-ring in the rail AND it may not be obvious that it isn't sealed. If you mount the injectors first then attempt to attach the rail the best case is that you have to futz with the rail and each injector to get the injectors seated and sealed correctly.
Worst case is that you do not get ONE injector properly seated and sealed. In that case, you will have a high pressure fuel leak and you will burn your 928 to the ground if you don't follow this last piece of advice:
Always. Always. ALWAYS, bypass the fuel pump relay and circulate fuel through the fuel system when you have had it apart. Do this BEFORE you start the engine. Ideally you do this right after you've tightened all the connections.
Last note: a poor seal of the lower injector o-ring is far less hazardous that a poor seal at the upper o-ring. A poor seal on the lower o-ring will result in false air (manifold leak) but is pretty unlikely to cause a fire. Not so with the upper o-ring.
In the spirit of Merlin's last post, though, this ...
The problem with mounting the injectors first is that the only thing that locates the injectors on the Z-axis is the connection to the fuel rail. It is very easy to get an injector in too deep and then it will be hard or impossible to seat the top o-ring in the rail AND it may not be obvious that it isn't sealed. If you mount the injectors first then attempt to attach the rail the best case is that you have to futz with the rail and each injector to get the injectors seated and sealed correctly.
Worst case is that you do not get ONE injector properly seated and sealed. In that case, you will have a high pressure fuel leak and you will burn your 928 to the ground if you don't follow this last piece of advice:
Always. Always. ALWAYS, bypass the fuel pump relay and circulate fuel through the fuel system when you have had it apart. Do this BEFORE you start the engine. Ideally you do this right after you've tightened all the connections.
Last note: a poor seal of the lower injector o-ring is far less hazardous that a poor seal at the upper o-ring. A poor seal on the lower o-ring will result in false air (manifold leak) but is pretty unlikely to cause a fire. Not so with the upper o-ring.
#40
Pro
Up fixin I made that statement because, your advice might get followed,
and I will bet the odds that since pictures are not being posted here, we dont really know whats happening at the work area of the OP.
Now the OP may not be mocking up the intake assembly before its mated to the heads, thus the injectors wont be fitted till the intake has been fitted,
thus the idea that sanding the injector mounting hole might be followed while the intake was installed would not be a good thing to do.
Over the years I have gotten many E mails from owners thanking me for adding in what some seasoned mechanics might take for granted, the little tidbits of info that can save time and prevent damage from rearing its head.
I would suggest that adding info for others to follow should be geared for the most inexperienced as taking for granted what may seem obvious can sometimes lead others into folly.
I am learning everyday from what others post on this site.
I in no way was trying to jab at your contribution.
I was only adding an observation.
and I will bet the odds that since pictures are not being posted here, we dont really know whats happening at the work area of the OP.
Now the OP may not be mocking up the intake assembly before its mated to the heads, thus the injectors wont be fitted till the intake has been fitted,
thus the idea that sanding the injector mounting hole might be followed while the intake was installed would not be a good thing to do.
Over the years I have gotten many E mails from owners thanking me for adding in what some seasoned mechanics might take for granted, the little tidbits of info that can save time and prevent damage from rearing its head.
I would suggest that adding info for others to follow should be geared for the most inexperienced as taking for granted what may seem obvious can sometimes lead others into folly.
I am learning everyday from what others post on this site.
I in no way was trying to jab at your contribution.
I was only adding an observation.
Upon reflection Mmerlin, you're exacly right.
Was feeling a bit cantankerous over some other 'asinine' comments. And I hadn't had breakfast and my blood sugar was low and ... and ...
My apologies.
Upfixen.
#42
Team Owner
Thanks for your understanding Australia.
I learned it here, right now LOL
I learned it here, right now LOL
#43
Pro
But it's not the 'Australia' bit.
It's the "no worries" bit: a peculiarly Australian term. Elsewhere around the world, when you are thanked by another for your service, your reply might be "my pleasure, Sir/Madam".
But in everyday Oz (Australia) the effort we make for a "good bloke" (ie someone who is not up him or her self) causes us "no worries". (Well most of the time anyway. lol).
Hence the term "No Worries mate".
And you're both on really good terms, it's "No Wucking Furries you old bas***d." LOL.
#44
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So in my spare time I get to write support documentation and instructions for folks using my power plant automation software. One would thinks that the audience for tjose would be technically saavy enough to grasp all the conceptual and technical process stuff. As I found out, one would be very wrong in that assumption. Turns out that the audience may have no experience whatsoever in the material at hand. Good instructions therefore must assume no prior knowledge or experience. Too often we write stuff that assumes that the reader already knows how everything works, and just needs a reference for refreshment.
The "Reader's Digest" level of reading skill is my benchmark. It appeals to a broad range of interests and reading abilities. Written for a fifth-grade reading ability. You just never know who's reading and what they might b looking for.
The "Reader's Digest" level of reading skill is my benchmark. It appeals to a broad range of interests and reading abilities. Written for a fifth-grade reading ability. You just never know who's reading and what they might b looking for.
#45
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