Technical Q&A
Welcome to PCA's source of expert advice, where our PCA National Technical Committee experts answer your questions about all things technical.
Reference 1988 944S, at what interval should water pump be replaced when the timing belt is replaced? Also, what version of water pump, as I see there are different later styles as it pertains to open or blocked ports?
Monday 01/05/2026 | 1988 | 944S | Engine
READ ANSWERFairly new to the air cooled world. I have a 76 911S with the 2.7L engine. I've done all the common mods to make it run cool and have had no problems. My question is about having the valves adjusted. I plan to have a local shop do it and was told to have them adjusted every 10,000 mi or two years. Some sites say 7,500 mi with no time limit. It's been two years since mine were last done, only 3,500 mi driven and they sound fine. Should I go with the two year rule?
Sunday 01/04/2026 | 1976 | 911S | Engine
READ ANSWERI have a 1980 924 Turbo with what I believe is the original charcoal canister. These are now no longer available. Should I try refurbishing it? Or just leave it alone? 54, 000 miles.
Saturday 01/03/2026 | 1980 | 924 Turbo | Engine
Thanks for your help!
READ ANSWERHow to Diagnose Erratic Sound Output - Bose System
Saturday 01/03/2026 | 2003 | 911 Carrera Cabriolet | Electrical
Occasionally when starting the car, the radio/CD head unit lights up, but no sound. All wiring and fuses are good. Sometimes, after cycling the central locking via the remote key fob, a restart results in normal sound production. Once playing, all is normal until shutdown. Then a restart may or may not result in normal sound production. What is the most likely method of diagnosis?
READ ANSWER1970 911T engine upgrade
Saturday 01/03/2026 | 1970 | 911T | Engine
Hello PCA. Im in the process of pulling my engine out to fix some leaks and was looking to do some upgrades for more power. Looking for a step by step upgrade. I have no budget in mind just looking to get the most out of this engine. Current engine is 2.2. Do you guys have any advise for me? This is non numbers matching car so im happy to Frankenstein it a bit even upgrading the transmitter is on the table. Is there any good examples of this in panemera ? ...
READ ANSWERI am looking for a repair facility for my PCM 1 radio unit
Friday 01/02/2026 | 2001 | 911 Carrera 4 | Electronics
my radio in my PCM unit is stuck on a single channel that I cannot change. Everything else seems to work fine and I want to maintain the ability to use the CD changer. Somebody here in the states must refurbish/repair these units but I have yet to find them. Do you have any suggestions?
READ ANSWERNew brake master cylinder installed. After several attempts to bleed the system, still no pedal resistance.
Thursday 01/01/2026 | 1970 | 911T | Brakes
Performed a bench bleed on the new master cylinder. Confirmed that it holds pressure, no internal leaks. Did this because the first new master cylinder out of the box was defective and had an internal leak. Found that out the hard way. After following the correct bleed procedure 3 times around with this second MC there isn't an improvement in the pedal feel and no pressure build. I've checked the system for leaks and haven't found anything at the reservoir, reservoir to MC, or at any of ...
READ ANSWERI want to outfit my boxster with wheels like those on the 904, to give it a retro look. Where do I begin?
Wednesday 12/31/2025 | 2005 | Boxster | Wheels and Tires
READ ANSWERBERU Spark Plug Wires-Bosch Ignition parts
Wednesday 12/31/2025 | 1984 | 911 Carrera | Engine
Are the BERU Spark Plug Wires and Bosch Distributor Cap and Rotor Good Quality or is the Porsche Brand Plug Wire, Distributor Cap and Rotor Set much better for the 1984 3.2 engine with the price being 5 times higher?Any issues with these BERU and Bosch parts?
READ ANSWERMy recently purchased 1987 924S shows signs, i.e, glue marks, of having sound and/or heat shields installed under the hood. Were such shields part of original equipment ? Do you recommend their re-installation?
Wednesday 12/31/2025 | 1987 | 924S | Body
READ ANSWERfor 5 years my radio sounds like boom, boom, boom, boom
Tuesday 12/30/2025 | 2013 | Boxster | Electronics
this happens especially with Sirius and FM, but only half of the tmeIt sounds like a loud bass guitar, but sometimes normalI have complained to SiriusMy Porsche dealer/mechanic had me change my six ignition coils and this helped temporarily.Should I get a new radio or get a better replacement.?I live 1.5 hours from Bellingham and Lynnwood WA and 2 hours from Seattle or BellevueI hae no idea who to ask or what is happening.I love my blue baby, w ...
READ ANSWERDoes the PCA have a registry of old Porsches available where I could get information if a car is registered?
Tuesday 12/30/2025 | 1980 | 911 SC | Performance Modifications
READ ANSWERFuel Filter Replacement on 2013 Boxster base
Sunday 12/28/2025 | 2013 | Boxster | Fuel System
I purchased a 2013 Boxster base a while back; I am the second owner. I now have about 86,000 miles on it. The first owner had all service completed at the dealer, so it was very well maintained. How do I go about changing the fuel filter, or should I just uses Textron or something similar? Thank you!
READ ANSWERWhat is the current private party resale value of a 2008 Porsche RS 60 Spyder in very good condition?
Friday 12/26/2025 | 2008 | Boxster RS 60 Spyder | Other
READ ANSWERconvertible top not working
Thursday 12/25/2025 | 2004 | 911 Carrera 4S Cabriolet | Electrical
I drove the car with the top down and parked it in the garage.The next day my wife tried to put the top up ,but it would not go up.She turned the car off and got me to try it.When I turned the key to start it- nothing -no click no sound but a burning smell.I live in Vero Beach,FL.32966 and towed the car to WERKSHOP in Melbourne,Fl.telephone 321 724 2059.The instrument cluster shorted out and they were able to get me a new one and got the car running ,but could not get the top to go up and do ...
READ ANSWERIs it possible to repair the warped door panels of the Boxster 981? I am looking for a DIY option or a low price repair place
Wednesday 12/24/2025 | 2016 | Boxster | Interior/Upholstery
Looking for DIY options to repair warped door panels.
READ ANSWERMy 1983 911 SC has crankcase oil leaks. A local Porsche mechanic suspects broken head bolts as the issue. Any suggestions for another mechanic in New Haven County to get a second opinion?
Tuesday 12/23/2025 | 1983 | 911 SC Cabriolet | Engine
READ ANSWERWhat Battery Group/Size fits best in a 1984 911 Carrera
Tuesday 12/23/2025 | 1984 | 911 Carrera | Electrical
What size or group battery fits best and works best on a 1984 911 Carrera?I now have a NAPA Legend 9849 AGM Battery Group 49 which is very big and does not fit well. If I remove or install this battery it is such a tight fit that may damage the wiring and hoses that are in the way.Also, Is the positive terminal changed to allow for wiring without overcrowding the wires on the terminal?
READ ANSWERAny private experienced mechanic near Raleigh NC?
Sunday 12/21/2025 | 2006 | 911 Carrera 4S | Other
I am looking for a private mechanic to replace the A/C evaporator housing… black foam of death is coming out if the vents.thanks!
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