|
200 Series General Forum for the Volvo 240 and 260 cars |
Information |
|
Interference enginesViews : 1345 Replies : 8Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Sep 23rd, 2017, 12:48 | #1 |
VOC Member
Last Online: Yesterday 14:24
Join Date: Jul 2006
Location: Chatham
|
Interference engines
The subject if which engines are interference and which are not pops up now and then but wanting to get all of the info in one spot I'd like to ask which is which and whether the same engines in different markets are different. I have the 2l engine in my '92 SE and I believe that is interference but what about the various models of the 2.1l and 2.3l. Lists on line do contradict each other even those of timing belt companies.
Yes I have read of broken belts changed at the side of the road and the trip completed with just an hour lost but you can only do this if it's a non interference engine. Comprehensive list wanted please. |
Sep 23rd, 2017, 13:52 | #2 |
I've Been Banned
Last Online: Aug 10th, 2018 09:22
Join Date: Jan 2011
Location: The Lincolnshire Wolds & West Sussex Coast
|
Plenty of warmish discussions on the 700/900 forum on this subject over many years - I know what (UK market) engines are non-interference - including mine - that's all that concerns me.
Jon Last edited by CTCNetwork; Feb 24th, 2018 at 12:45. Reason: One more time.... |
Sep 23rd, 2017, 14:09 | #3 |
Trader Volvo in my veins
Last Online: Today 08:21
Join Date: Dec 2004
Location: Anglesey
|
The only engines that spring to mind as a problem are the B19 series and the B230K engines.
|
Sep 23rd, 2017, 14:20 | #4 |
Premier Member
Last Online: Oct 26th, 2023 20:42
Join Date: Jun 2010
Location: Thurrock
|
Derek you have a seriously good question. I think you want a specific and as near as possible definitive list. I suspect a lot of 240 (and lesser variant) Volvos would like that best available information in one place.
|
Sep 23rd, 2017, 17:22 | #5 |
Torquemeister
Last Online: Apr 22nd, 2024 11:43
Join Date: Dec 2004
Location: Asgard, Cheshire
|
4-Valve (i.e. twin-cam) units are interference; otherwise B21 and B23 are non-interference, B200 and B230 except K-suffixed examples are supposedly non-interference. The K-suffixed units have a different combustion chamber to the rest of the 2-valve motors.
As remarked elsewhere on this thread, there are differing opinions on the subject but I know from experience that B21As are non-interference.
__________________
loki_the_glt - Skipper of the Exxon Valdez, driver of Sweden's finest sporting saloon - and pining for another Slant-4. |
Sep 23rd, 2017, 18:37 | #6 |
I've Been Banned
Last Online: Aug 10th, 2018 09:22
Join Date: Jan 2011
Location: The Lincolnshire Wolds & West Sussex Coast
|
The problem with this issue/thread is that every poster thinks their view is the correct one.
Jon. |
Sep 24th, 2017, 06:16 | #7 |
Not an expert but ...
Last Online: Yesterday 08:04
Join Date: Dec 2001
Location: Boncath
|
There is only one safe way of knowing that an engine is non-interference and that is by removing the timing belt, eg when changing it, turning the cam shaft to a position where several valves are fully open, removing the spark plugs, and very cautiously turning the crankshaft by hand to see whether a piston touches a valve.
It would be really useful if there was a list somewhere of each engine type with members' reports of successful trials. |
The Following 2 Users Say Thank You to Clifford Pope For This Useful Post: |
Sep 24th, 2017, 12:18 | #8 |
Master Member
Last Online: Yesterday 07:47
Join Date: Nov 2012
Location: London and Cambridge
|
Bear in mind that an originally non interference engine may become an interference engine if the head has been skimmed at some point...
Cheers |
Oct 10th, 2017, 15:14 | #9 |
Junior Member
Last Online: Oct 1st, 2021 09:52
Join Date: Oct 2017
Location: Hull
|
In my 740 I have the B230K - 2.3 redblock.
Interference apparently. |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|