86 Mossgreen Metallic 5 Speed Continues
#335
Team Owner
Ken make sure the area under the bolt heads for the water bridge and the sensor surfaces are cleaned of the coating,
otherwise the temp sensors will give false readings
otherwise the temp sensors will give false readings
#336
Drifting
Thread Starter
#337
Team Owner
the bolts will be the ground path even though the base of the WB is clean,
the gasket will prevent grounding.
I have seen this issue occur on a few cars with powder coated water bridges,
the engine will not get accurate temperature readings and then the computer will adjust the injection system to the wrong parameters,
this can also effect the temperature gauge readings to be erratic.
clean the bolt mating surfaces and use deoxit 100 on the bolt heads and washers and the temp sensor washers
the gasket will prevent grounding.
I have seen this issue occur on a few cars with powder coated water bridges,
the engine will not get accurate temperature readings and then the computer will adjust the injection system to the wrong parameters,
this can also effect the temperature gauge readings to be erratic.
clean the bolt mating surfaces and use deoxit 100 on the bolt heads and washers and the temp sensor washers
#338
Drifting
Thread Starter
the bolts will be the ground path even though the base of the WB is clean,
the gasket will prevent grounding.
I have seen this issue occur on a few cars with powder coated water bridges,
the engine will not get accurate temperature readings and then the computer will adjust the injection system to the wrong parameters,
this can also effect the temperature gauge readings to be erratic.
clean the bolt mating surfaces and use deoxit 100 on the bolt heads and washers and the temp sensor washers
the gasket will prevent grounding.
I have seen this issue occur on a few cars with powder coated water bridges,
the engine will not get accurate temperature readings and then the computer will adjust the injection system to the wrong parameters,
this can also effect the temperature gauge readings to be erratic.
clean the bolt mating surfaces and use deoxit 100 on the bolt heads and washers and the temp sensor washers
#339
Ken,
I'm in the process of doing an intake/fuel refresh and was curious as to what you used to replace the 'horseshoe' hose and what type clamps you used. Great post…it has been very helpful!
I'm in the process of doing an intake/fuel refresh and was curious as to what you used to replace the 'horseshoe' hose and what type clamps you used. Great post…it has been very helpful!
#340
Drifting
Thread Starter
As background, I am running PorKen chips, so I am using an early '87 FPR, which _may_ make a difference.
In any case, I bought new hose and 14 mm clamps from Roger.
I had to cut off the connectors from the end of the old hose, and then I cut the new hose to exactly the same length as the old. This was a mistake. The hose kinked.
I spoke to Roger and he recommended making the hose longer:
"You must make the hose a lot longer and put it behind the engine and below the fuel cooler. The longer the hose the larger the bend radius and no kink."
The next piece was a little over an inch longer, no kink. It may make sense to go even longer.
#342
Team Owner
Ken do you have new sealing washers for the temp sensors on the WB?
it appears that they are not installed this could lead to a leak
it appears that they are not installed this could lead to a leak
#343
Inventor
Rennlist Member
Rennlist Member
Looks like you have a '85 type return bracket. (The '86 return hose connection is on the right side, with a shorter hose*.)
If you delete the fuel cooler better to go directly to the return line on the firewall. (I trimmed the line and had a hose supplier rebraze the end for me.)
If you retain the fuel cooler and '85 bracket, there was originally a small bracket fitted on the rear TB housing stud for a (blue) clip to hold the return line.
*Some very early '85 have the FPR on the left side as shown in the WSM. It has been observed that the engine runs oddly with the FPR on the left side. Perhaps because of fuel pressure harmonics.
If you delete the fuel cooler better to go directly to the return line on the firewall. (I trimmed the line and had a hose supplier rebraze the end for me.)
If you retain the fuel cooler and '85 bracket, there was originally a small bracket fitted on the rear TB housing stud for a (blue) clip to hold the return line.
*Some very early '85 have the FPR on the left side as shown in the WSM. It has been observed that the engine runs oddly with the FPR on the left side. Perhaps because of fuel pressure harmonics.
#344
Drifting
Thread Starter
Looks like you have a '85 type return bracket. (The '86 return hose connection is on the right side, with a shorter hose*.)
If you delete the fuel cooler better to go directly to the return line on the firewall. (I trimmed the line and had a hose supplier rebraze the end for me.)
If you retain the fuel cooler and '85 bracket, there was originally a small bracket fitted on the rear TB housing stud for a (blue) clip to hold the return line.
*Some very early '85 have the FPR on the left side as shown in the WSM. It has been observed that the engine runs oddly with the FPR on the left side. Perhaps because of fuel pressure harmonics.
If you delete the fuel cooler better to go directly to the return line on the firewall. (I trimmed the line and had a hose supplier rebraze the end for me.)
If you retain the fuel cooler and '85 bracket, there was originally a small bracket fitted on the rear TB housing stud for a (blue) clip to hold the return line.
*Some very early '85 have the FPR on the left side as shown in the WSM. It has been observed that the engine runs oddly with the FPR on the left side. Perhaps because of fuel pressure harmonics.
Good eye Porken! I also noticed the different return bracket from my existing '86 vs. this earlier '85 motor. I was going to leave it as is, but I will consider re-routing, simplifying this return hose connection to the fuel cooler, as others have said similar in other threads.
The other difference I noted so far is that the bracket for the diagnostic port at the motor front is different, putting that port in a slightly different location.
Last edited by KenRudd; 12-30-2016 at 10:45 AM.
#345
Drifting
Thread Starter
So why the anti-seize at this point? I was just on a roll with the Anti-seize brush and got ahead of myself.