Search found 2750 matches

by Bruce M
Mon Apr 22, 2024 11:51 am
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2404
Views: 254626

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

OK I’ve tried that now I first did the tests on the DME relay and they seem to be working fine - pin 87 is charged up with 12 volts. Then I went to do your test on the injector plug. Tested the first pin and got 12 volts. tested the second pin and got 12 volts again! Not sure what that means. I tri...
by Bruce M
Mon Apr 22, 2024 8:36 am
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2404
Views: 254626

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

Bit of info on the relay. It has two stages. Stage 1 powers the injectors with 12V plus a couple of other components (idle valve etc). Stage 1 is controlled by a 12v feed from the alarm. Stage 1 output also provides the 12V power to stage 2 solenoid which is activated by an earth side switch by the ...
by Bruce M
Mon Apr 22, 2024 7:41 am
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2404
Views: 254626

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

Wiring diagram is useful. Injectors work by a continuous 12v feed and a ground side switch by the ECU. The connector you mentioned, is for the injectors. Pins 1 & 2 are the solid 12V feed, via a common point marked [2] on the diagram, being fed from pin 87 on the master relay. Pins 5 & 6 on ...
by Bruce M
Sun Apr 21, 2024 4:56 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2404
Views: 254626

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

sladey wrote: The gearbox was earthed properly so I would think the starter would have earthed through that
Doh. When you said the earth wasn’t connected I assumed you meant the main earth strap.
Ignore me. [emoji2359]
by Bruce M
Sun Apr 21, 2024 2:27 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2404
Views: 254626

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

There is a chance you’ve fried a small earth wire (sensor earth or similar) as the starter motor earth would have taken any possible return path. Haltech recommend earthing the ECU & all related components to the engine block for this reason. So there is no alternative path back to the battery,...
by Bruce M
Sun Apr 21, 2024 1:24 pm
Forum: Porsche Restoration Threads
Topic: 1987 3.2 Carrera Backdate project - Sladeys hotrod
Replies: 2404
Views: 254626

Re: 1987 3.2 Carrera Backdate project - Sladeys hotrod

There is a chance you’ve fried a small earth wire (sensor earth or similar) as the starter motor earth would have taken any possible return path. Haltech recommend earthing the ECU & all related components to the engine block for this reason. So there is no alternative path back to the battery, ...
by Bruce M
Fri Apr 19, 2024 9:20 am
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: Assessing an unknown engine
Replies: 74
Views: 2720

Re: Assessing an unknown engine

If there is a chance Loctite has been used, heat up the big nut to release it. I’ve broken big sockets in the past when they should have been okay because loctite red made a big torque into a ridiculous torque, so i play it safe & warm the nut/bolt.
by Bruce M
Fri Apr 19, 2024 9:14 am
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: Anyone else had this issue?
Replies: 11
Views: 666

Re: Anyone else had this issue?

Ignore it.

Sounds a bit like road noise from old tyres or a noisy driveline bearing/ component. Low frequency drone that appears when speed is above a certain point & doesn’t really vary in pitch?
by Bruce M
Fri Apr 19, 2024 9:06 am
Forum: Classic Porsche General Chat
Topic: Porsche v Singer... Bring on the popcorn.
Replies: 9
Views: 305

Re: Porsche v Singer... Bring on the popcorn.

I guess Porsche benefits as they are a form of halo model that adds to the brand value. Perhaps there are limits on what they can do themselves with low volume cars & still make a profit. Why make another 959 as a halo model (which was sold at a loss) when you can sub-contract instead? I also wo...
by Bruce M
Thu Apr 18, 2024 10:33 am
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: Maddening Running Issue
Replies: 56
Views: 1785

Re: Maddening Running Issue

Squirt a little brake cleaner into the air intake & see if that stops the hunting. The car will run on the brake cleaner when the fuel drops out, but if it’s a spark problem this will not act as a temporary fix.
by Bruce M
Wed Apr 17, 2024 4:08 pm
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: Maddening Running Issue
Replies: 56
Views: 1785

Re: Maddening Running Issue

The hunting is probably because the pressure isn’t enough to open the injectors, until the pump builds enough pressure then they open & pressure drops until they shut, then repeat.
by Bruce M
Sun Apr 07, 2024 8:50 pm
Forum: Member's 'Others' Gallery
Topic: Old Sckool 5 cc model Diesel engine build
Replies: 71
Views: 51004

Re: Old Sckool 5 cc model Diesel engine build

It’s been an education to follow along… & has convinced me that I shouldn’t buy a lathe [emoji16]
by Bruce M
Sat Apr 06, 2024 8:16 am
Forum: Porsche Technical advice and help
Topic: Using a snap-on timing light
Replies: 16
Views: 858

Re: Using a snap-on timing light

Yes, set the strobe to the expected advance at say, 2k then Rev to that and you will see if the flash is early or late. Then tweak the strobe setting until you get to actual figure which matches up with TDC. That will give you the absolute advance and if you want the relative advance deduct the stat...
by Bruce M
Fri Mar 29, 2024 9:01 am
Forum: Classic Porsche General Chat
Topic: What did you do in/on/for your Porsche today?
Replies: 7947
Views: 659755

Re: What did you do in/on/for your Porsche today?

KS wrote:Collected my engine - now to get it installed along with some other related mods…
Did you upgrade the valve springs to prevent float?
by Bruce M
Mon Mar 25, 2024 2:37 pm
Forum: Porsche 356
Topic: ’Speedster in a box’
Replies: 3
Views: 240

Re: ’Speedster in a box’

Probably… but they won’t be shouting about it I’d imagine. :)

Just need a vin plate or even just a fond memory as the starting point.

Was watching Ivan Dutton’s YouTube channel recently and he was talking about recreating Bugattis for customers.