Best way to tackle the 356 engine timing gear replacement?

356engine buildtiming gearmaintenanceporsche

Registration:
08.07.2021
Messages: 702

Wanderer Topic author

03.01.2025 07:31

I just bought a '63 356 and it's in rough shape. The manual says the timing gear is a big job, and I'm worried about getting it wrong. I've watched a few YouTube videos, but they all seem to assume you have brand-new tools. Has anyone done this job recently? I'm specifically looking for advice on the proper torque specs for the main bearing caps and if there are any common pitfalls I should watch out for when reassembling the crankcase. Any tips on the best source for genuine or high-quality aftermarket parts would also be greatly appreciated.

12 Answers

08.07.2023
Posts: 142

MoonShadow

05.01.2025 15:39

Welcome to the club. It's definitely a tricky job, but totally doable with patience. Focus on cleaning the mating surfaces thoroughly before reassembly; dirt is the enemy here.

26.04.2022
Posts: 727

Wife_C

04.03.2025 21:43

For the main bearing caps, always defer to the specific engine year service manual, but generally, they are low torque. Don't overtighten, or you risk stripping the threads. Use a torque wrench, period.

17.11.2021
Posts: 1268

Niece_C

09.03.2025 18:14

The biggest pitfall I saw was people forgetting to check the timing chain tensioner clearance before torquing the rear cover. It's a small thing, but it makes the whole thing useless if it's off.

31.08.2021
Posts: 385

CherryMx

17.05.2025 11:08

I recommend reputable sources like reputable specialized VW parts dealers or NAPA for high-quality aftermarket kits. Avoid the cheapest options you find online.

10.10.2021
Posts: 1367

StarLord in response

13.07.2025 05:41

Did you check the oil passages? Sometimes old gasket material can leave residue that blocks oil flow to the bearing journals. Be meticulous.

02.05.2024
Posts: 1076

PubgMaster

18.09.2025 13:28

I found that using a dedicated engine hoist and a friend to hold the engine steady makes the whole process much easier. It's heavy work.

02.06.2023
Posts: 1113

Faris_C in response

05.10.2025 22:54

Re: @User123 (the one who mentioned oil passages) Yes! And also make sure the timing gear itself is clean. Sometimes the teeth get gummed up with old grease. Use a brass brush, not steel.

15.03.2024
Posts: 311

Hudson_W

08.10.2025 04:00

Short answer: Buy the kit from a reputable VW specialist. It saves headaches. Good luck!

08.12.2023
Posts: 574

BlazeRunner

08.10.2025 20:52

Torque specs are critical. For the main bearing caps, I remember seeing a specific pattern of tightening (star pattern) that must be followed. Never just tighten them sequentially.

06.07.2022
Posts: 1372

Rookie_C

21.11.2025 00:47

I had trouble getting the timing gear seated properly the first time. It's not just dropping in; you have to guide it carefully and ensure the keyway is fully engaged. Watch videos that show the gear being installed, not just removed.

22.12.2021
Posts: 556

Rosenthal_C in response

28.11.2025 15:15

I used a local VW mechanic who specialized in vintage engines. They sourced everything for me, including the correct gaskets and seals. It was worth the extra money for peace of mind.

13.04.2023
Posts: 877

Ripley_E

02.01.2026 18:57

The main thing is cleanliness. Everything must be spotless. Don't rush the disassembly, and don't rush the reassembly. Take your time and double-check everything twice.

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