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by 937carrera
24th April 2019 - 9:16am
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

I decided to scratch my head a bit on the accelerator pump problem, so first of all I needed to understand how they work. Have you seen this, handy pdf for Solex carbs http://oacdp.org/solex.html#q25 I'm still scratching my head as to why a roughened surface would cause a difference in the quantity ...
by 937carrera
22nd April 2019 - 6:58pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

Am i right that TDC is the seperate mark far left? That was what i was doing it off for balve clearances, i may well check them again. Yep, that's correct, but check again. I have a T25 with no power and I'm pretty convinced that it's a tappet / valve problem. Hydraulic so much more complicated. Th...
by 937carrera
22nd April 2019 - 6:06pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

Another thing to check. Tappets. I know you have done them. But. There was another guy I helped on the T25 forum who was setting his tappets using the wrong timing mark. Maybe you didn't use TDC ?? When the engine is properly cold I would go through them again, making sure they are all set at 6 thou...
by 937carrera
22nd April 2019 - 4:48pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

broady_6 wrote:
22nd April 2019 - 4:44pm
Im certain the problem is with you carb now as one side runs well and the other doesnt
I thought that, but he had no power at all when he drove it :?: :?: :?:
by 937carrera
22nd April 2019 - 4:43pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

I don't know about the type 3 but the type 4 has a steel pipe that runs in the tunnel. Mine rusted and leaked so I cut it out and replaced with copper, there's a thread on that somewhere. I would not be happy with a fuel pipe in the passenger compartment, it's banned in motorsport for obvious reason...
by 937carrera
22nd April 2019 - 3:18pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

... but thinking about it more, shouldn't you be seeing the timing bounce around on TDC if the vac pipes are back on. I would try moving the timing again when the engine is running ( I must be having a good day, diagnosing your running problem Broady before you even asked the question and solving an...
by 937carrera
22nd April 2019 - 3:14pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

Oh gawd, is it a 009 dizzy. Looks pretty works s4!te. I didn't look before and having looked now I am none the wiser. Virtually "any" normal engine needs to see 28-32 degrees of advance at full advance, when my cars are on the rolling road the vac pipes are always left on, no need to take them off, ...
by 937carrera
22nd April 2019 - 2:40pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

I doubt if it's the clutch slipping. Easy way to check put it in 4th, give it some revs and then let the clutch out slowly. If it stalls, clutch is OK, if not then it's knackered. What you are describing is symptomatic of either: Brakes jammed on - can you push the car by hand Lack of fuel - you nee...
by 937carrera
22nd April 2019 - 1:27pm
Forum: Cars and Parts Wanted
Topic: Type 3 Instruction manual
Replies: 2
Views: 27

Re: Type 3 Instruction manual

There's a good selection here to download https://www.thesamba.com/vw/archives/manuals/type3.php
by 937carrera
22nd April 2019 - 1:13pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

Alternatively, have the engine running and pull the plug leads off one at a time. The one that reduces engine speed the least is the one with the problem. Wear something that will insulate you nicely, it's easy on a type 4 but I think plug access is more difficult on type 3 so consider disconnecting...
by 937carrera
22nd April 2019 - 12:40pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

I'm not that good with carbs, so with that out of the way: I think you need to spend a bit of time balancing the carbs up, can you see the engine rocking,that's consistent with a different level of suction from each carb. Baisc things first, are you sure tappets are correctly set on all 4 cylinders ...
by 937carrera
22nd April 2019 - 11:04am
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

OK, so it's the middle one which is set at TDC with VAC on, subject to Broadys advice Set it at that, then take the vac off and block where necessary and I'll bet the timing is now about 7.5 ish BTDC. That cough sounds to be nothing more than simply running out of fuel. It's not a cough and carry on...
by 937carrera
22nd April 2019 - 9:55am
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

I'll chuck in some thoughts here: Does it depend on the engine number, pre / post 1009830. From the photo the pattern of notches looks like an early engine so timing should be at TDC, i.e the left most isolated notch (VAC HOSES ON). If it were me I would measure how far away each of those notches is...
by 937carrera
21st April 2019 - 8:04pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

Never got past doing MK1 Golfs, but have had the head off a Polo GTi that wasn't too challenging, only £8 for a new valve as well ;)
by 937carrera
21st April 2019 - 7:48pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

JackReddick wrote:
21st April 2019 - 7:45pm


Nah they’re proper rods, had the heads off on Friday and fitted them 😁
Well done for that then :thumbsup:
by 937carrera
21st April 2019 - 7:39pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

I'll just point you in this direction for engine codes etc, it's another part of this website,a technical web which has good info in it but a bit hidden because it's on a different URL http://home.clara.net/hallvw/t3engnos.htm and this one has pictures at the bottom https://www.thesamba.com/vw/archi...
by 937carrera
21st April 2019 - 4:40pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

Locate the engine code and post that as well, you never know what might be in there
by 937carrera
21st April 2019 - 2:55pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

I was about to say it looks like you need some type 3 detailed knowledge, and then it just appears. :thumbsup:
by 937carrera
21st April 2019 - 1:40pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

I always struggle when more than one thing is changed at a time. Why did you decide to adjust the timing - did you put a strobe on it and confirm it was incorrect ? From what I have read you had a fuel delivery problem, changed the pump and still have a fuel delivery problem. It will run but not idl...
by 937carrera
20th April 2019 - 5:50pm
Forum: Members' Cars and Project News
Topic: 1971 VW Type 3 Fastback
Replies: 527
Views: 49413

Re: 1971 VW Type 3 Fastback

You've really moved that on now, I would have been gutted with the paint coming off the sills. Which picture do you think captures the colour most accurately. Isn't it handy not needing to go through the MOT process, and sensible seeing as you've just done a pretty full rebuild of the old girl. Once...
by 937carrera
16th April 2019 - 9:57pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

The links to the product from the blog have changed, try this

https://www.brickwerks.co.uk/catalogsea ... hanol+hose
by 937carrera
16th April 2019 - 9:15am
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

Is there a spec for measuring the stroke /protrusion of the pushrod of the type 3 pump ?

I would double check that before splashing out on a new fuel pump.

Also worth checking the pushrod length with a set of vernier calipers if you have some.
by 937carrera
15th April 2019 - 10:29pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

I wouldn't worry too much about the filter looking empty, but it looks to be that either there is a blockage at the tank end, or the pump is weak. I would go along with that. You've already decided to move the location of the fuel filter which is good advice, so you'll need to replace the existing ...
by 937carrera
15th April 2019 - 7:27pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

Stick to the basics before going down a rabbit warren Is it running now ( you mention the filter having less fuel in on idle) - was it a fuel or spark problem ? Did you do the eggcup of fuel into the throat of the carbs - what happened ? Is the filter inserted in the correct flow orientation (left s...
by 937carrera
14th April 2019 - 10:34pm
Forum: Members' Cars and Project News
Topic: 71 Fast Back Recommissioning
Replies: 94
Views: 409

Re: 71 Fast Back Recommissioning

So long as fuel covers the inlet and outlet then you're fine.

As it's a carb try pouring an eggcup of fuel down the throat of the carb. If it starts and runs for a few seconds then you know it's a fuel delivery / carb problem.

Someone else will have to advise on the fuel pump