Search found 439 matches

by chris68
Tue Sep 21, 2021 8:12 am
Forum: Classic Porsche General Chat
Topic: Any recommendations for an ultrasonic cleaner?
Replies: 5
Views: 346

Re: Any recommendations for an ultrasonic cleaner?

Welcome to try mine before you buy one. It's just big enough for a triple Weber.
Cheers
by chris68
Mon Sep 13, 2021 3:35 pm
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: Bogging down on Webers
Replies: 15
Views: 663

Re: Bogging down on Webers

It's a good site and he's a very knowledgeable and helpful bloke. Exchanged a few messages with him when I was going round in circles myself. Yes, did the quick tuning with the filters off because you need access to the inlet trumpets. It's recommended in general not to run without filters though, t...
by chris68
Mon Sep 13, 2021 2:50 pm
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: Bogging down on Webers
Replies: 15
Views: 663

Re: Bogging down on Webers

Many have found this site very helpful http://www.performanceoriented.com/troubleshooting
by chris68
Mon Sep 13, 2021 12:57 pm
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: Bogging down on Webers
Replies: 15
Views: 663

Re: Bogging down on Webers

On mine the bakelite?? plate in the base of the distributor was breaking up. It was impeding movement of the advance mechanism. There are two advance profiles on my Bosch distributor and the low speed mechanism was particularly affected causing poor low speed acceleration. I wasted a long time chasi...
by chris68
Mon Sep 13, 2021 11:37 am
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: Bogging down on Webers
Replies: 15
Views: 663

Re: Bogging down on Webers

:lol: my neighbours preferred the test rig method
by chris68
Mon Sep 13, 2021 11:05 am
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: Bogging down on Webers
Replies: 15
Views: 663

Re: Bogging down on Webers

Hi Rob, A couple of options here I guess. Strobe on lead 1 and plot dynamic crank advance at increasing rpm intervals. Convert crank advance values back to distributor advance then compare with factory curve. Where, (measured dynamic crank advance - static crank advance) / 2 = distributor advance Or...
by chris68
Mon Sep 13, 2021 7:54 am
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: Bogging down on Webers
Replies: 15
Views: 663

Re: Bogging down on Webers

Hi Rob,

As well as more carb fine tuning it's a good idea to check the timing and that the advance mechanism is following the factory curve. Found my distributor to be way off when I eventually realised it was the cause of poor acceleration on my car.

Cheers
by chris68
Sat Aug 21, 2021 3:02 pm
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: Accelerator pedal fail
Replies: 12
Views: 732

Re: Accelerator pedal fail

Probably a good idea to re-bush the pedal assembly and get a replacement throttle pedal. You're always welcome to take a look at my car for comparison.
Cheers
by chris68
Thu Aug 12, 2021 5:33 pm
Forum: Pre 1974 - Porsche 911 (longhood)
Topic: 911T - any thoughts on engine noises. Main bearing?
Replies: 5
Views: 382

Re: 911T - any thoughts on engine noises. Main bearing?

Sounds pretty normal to me too. Those Webers probably need setting up. Sounds like they're spitting back which suggests some throats are running a bit lean on idle circuit. 911 bottom end is very robust so unless abused doesn't normally give trouble. Can help with setup. Give me a shout if you're st...
by chris68
Fri Jun 11, 2021 12:27 pm
Forum: Porsche Parts Wanted
Topic: Near side 911 silver anodised door frame
Replies: 1
Views: 322

Re: Near side 911 silver anodised door frame

Got one in the shed that I've been tripping over for years :wink: .

It's not perfect, and missing a couple of screws but you can have it if it helps you out. Or make a donation to DDK charity if you like.

PM your email address and I'll send photos.

Cheers,
Chris
by chris68
Thu May 13, 2021 8:02 am
Forum: Classic Porsche General Chat
Topic: Fan Housing
Replies: 6
Views: 577

Re: Fan Housing

Thanks for the advice everyone, I appreciate that.
Vapour blast and chromate it is then. I'll look into getting it done.

Kind regards,
Chris
by chris68
Wed May 12, 2021 4:32 pm
Forum: Classic Porsche General Chat
Topic: Fan Housing
Replies: 6
Views: 577

Fan Housing

Hi All,

Can anyone suggest where to get my fan housing tidied up? It's been painted in the past, so I guess it needs stripping and clear anodizing??

Thanks,
Chris
by chris68
Mon Jan 18, 2021 5:04 pm
Forum: Porsche Technical advice and help
Topic: Hydraulic Tensioners on 2.0 Motor
Replies: 8
Views: 556

Re: Hydraulic Tensioners on 2.0 Motor

I've got a spare pair of safety collars if you need - ordered two pairs by accident. Yours for £20 incl postage.
by chris68
Mon Jan 18, 2021 4:28 pm
Forum: Porsche Technical advice and help
Topic: Hydraulic Tensioners on 2.0 Motor
Replies: 8
Views: 556

Re: Hydraulic Tensioners on 2.0 Motor

Many thanks for the information and offer to share info from Wayne Dempsey's 101 projects book. I'd forgotten I owned a copy of Wayne's How to Rebuild and Modify Porsche 911 Engines, and it also advises swopping the chain housings on '65 to '67 cars in order to use the pressure fed tensioner kit. I ...