[Tigers] Radiator Cap
Ken Tisdale
ktisdale at ix.netcom.com
Thu Aug 19 15:03:33 MDT 2021
Very nice!
Ken
On 8/19/2021 10:00 AM, Donald Antilla via Tigers wrote:
>
> Here is what I did on my Series 200 Griffith.
>
> I wanted to hide the overflow tank, so we (Bob Cuneo) took an old fire
> extinguisher, cut/sectioned/welded it so it would fit (on the
> Griffith) close to the tubular frame and not be obvious.
>
> It is difficult to see in the photo labeled “surge tank installed” how
> well it hides, but it is really hard to spot. Note: I had the red cap
> reanodized black to make it less obvious.
>
> Don
>
> For a coolant recovery system I'm currently using my old original
> washer bottle mounted in the bracket that originally held the remote
> oil filter. I would like to come up with a different solution that I
> can mount to the inner fender in front of the expansion tank. I'm
> concerned that the plastic washer bottle in its current location up
> against the engine might suffer from the heat. Moss Motors has an
> overflow bottle for a Triumph that wouldn't look out of place in the
> Tiger, https://mossmotors.com/overflow-bottle-1
> <https://mossmotors.com/overflow-bottle-1>. But the bracket is kind of
> pricey. I might try to make my own bracket.
>
> Have Fun,
>
> Joe Brown
>
> On Thu, Aug 19, 2021 at 10:39 AM Ron Fraser via Tigers
> <tigers at autox.team.net <mailto:tigers at autox.team.net>> wrote:
>
> This has been a wonderful discussion. Please include any
> manufacturer and part number when you find good workable parts for
> any area on the Tiger. We also need to know possible bad part
> numbers too. We all need that kind of information on hand for
> future reference.
>
> I still recommend a coolant recovery system to everyone then you
> know exactly when and how much coolant is moving back and forth
> through the system.
>
> Make it a simple setup that can easily be removed if judging is
> your priority.
>
> Personally, I prefer not to pollute the ground with coolant of any
> kind and I really don’t want coolant possibly spraying onto my
> tire while driving or stopping.
>
> Ron Fraser
>
> *From:* Tigers <tigers-bounces at autox.team.net
> <mailto:tigers-bounces at autox.team.net>> *On Behalf Of *Gary
> *Sent:* Thursday, August 19, 2021 9:26 AM
> *To:* michael king <michael.s.king at gmail.com
> <mailto:michael.s.king at gmail.com>>; Douglas Lyle
> <douglasalyle at yahoo.com <mailto:douglasalyle at yahoo.com>>
> *Cc:* Tigers Den <tigers at autox.team.net
> <mailto:tigers at autox.team.net>>
> *Subject:* Re: [Tigers] Radiator Cap
>
> Or you were just over filling it.
> It is normal for the Tiger to blow out the little hose until it
> gets down to where it needs to be.
> Gary
>
> On 8/18/2021 11:38 PM, michael king via Tigers wrote:
>
> doug sounds like the spring wasnt strong enough or that
> perhaps very slightly to shallow?
>
> On Thursday, 19 August 2021, Douglas Lyle via Tigers
> <tigers at autox.team.net <mailto:tigers at autox.team.net>> wrote:
>
> Joe, I've had two failures with those Scott Drake caps.
> They were about 10 years apart. Both failed soon after
> installation. The 10 year gap was because I had
> forgotten that the first one failed and then 10 years
> later I bought another and it also failed. Ended up
> finding an NOS cap and that solved the problem.
>
> Both Scott Drake caps were allowing coolant to puke out
> after short drives. Dimensions looked identical. Your
> results may vary. Just keep an eye on it.
>
> Doug
>
> On Wednesday, August 18, 2021, 10:21:47 AM PDT, Joe Brown
> <jbbrown1980 at gmail.com <mailto:jbbrown1980 at gmail.com>> wrote:
>
> I have an update on my quest to find a radiator cap. I
> wound up ordering a Scott Drake Mustang cap from CJ Pony
> Parts and it fits really well. And since my temp gauge
> was always pegged out really high I installed a mechanical
> temp gauge from Summit on my Edelbrock intake. After
> idling for about 20 minutes the temp never got over 190.
> Now I need to take it out for a long drive and see how it
> does.
>
> Thanks for all of MKdoug soijds info from everybody.
>
> Thanks,
>
> Joe Brown
>
> On Thu, Jul 29, 2021 at 9:35 AM Ron Fraser
> <rfraser at bluefrog.com <mailto:rfraser at bluefrog.com>> wrote:
>
> Jim
>
> Thank you for the pictures.
>
> It appears I have the MOPAR 5220487 Filler cap – good
> to know.
>
> This also indicates that any 522xxxx number in the
> Parts List is a Chrysler part number – excellent.
>
> Ron Fraser
>
> *From:*jimdamelio <jimdamelio at verizon.net
> <mailto:jimdamelio at verizon.net>>
> *Sent:* Wednesday, July 28, 2021 8:11 PM
> *To:* Joe Brown <jbbrown1980 at gmail.com
> <mailto:jbbrown1980 at gmail.com>>; Ron Fraser
> <rfraser at bluefrog.com <mailto:rfraser at bluefrog.com>>
> *Cc:* Tigers Den <Tigers at autox.team.net
> <mailto:Tigers at autox.team.net>>
> *Subject:* Re: [Tigers] Radiator Cap
>
> Attached are pictures of the 9lb cap 5220487, 13lb cap
> 1224818 and a 13lb chrome Motorcraft cap. The 9lb cap
> measures 1" from inside base to tip of plunger while
> both 13lb caps measure 1-1/8".
>
> Jim D
>
> Sent from my Galaxy
>
> -------- Original message --------
>
> From: Joe Brown via Tigers <tigers at autox.team.net
> <mailto:tigers at autox.team.net>>
>
> Date: 7/28/21 6:49 PM (GMT-05:00)
>
> To: Ron Fraser <rfraser at bluefrog.com
> <mailto:rfraser at bluefrog.com>>
>
> Cc: Tigers Den <Tigers at autox.team.net
> <mailto:Tigers at autox.team.net>>
>
> Subject: Re: [Tigers] Radiator Cap
>
> Just to add to my confusion I took a look at the Tiger
> Parts List Supplement (pub number 6601131) and I'm
> guessing this only covers the Tigers up to B382001521
> because it only shows the 1224725 header tank and Ron
> has Parts List 6601334 which show two more
> tanks. Parts List 6601131 says the 9 lb. cap is
> for "later" cars and the 13 lb. cap is for "earlier"
> cars. This seems to contradict what is in TBON. Is it
> possible that some of the earliest cars had 13 lb.
> caps and then they went to 9 lb. caps until they
> changes the header tanks?
>
> The Rootes part number for the 9 lb. cap is 5220487
> and when I Google that number I can see that is also a
> Mopar part number from back in the day. All of the
> usual sources want to cross this over to a 13 lb. cap.
> I did find a 9 lb. cap made by Motorad but I can't
> find what the stem length is. I guess I will have to
> go down to the different part stores and look at what
> they have.
>
> Sunbeam Specialties has three different caps for sale
> but they are for Alpines, not Tigers. I asked Rick if
> any of them would work for the Tiger and he said the
> pressure rating was too low.
>
> Ron, the G630 cap pulls up as a match for some older
> Land Rovers but I'm only finding used ones.
>
> If anybody has recently purchased a new cap that is
> working fine please let me know what you got.
>
> Thanks,
>
> Joe Brown
>
> On Tue, Jul 27, 2021 at 8:40 PM Joe Brown
> <jbbrown1980 at gmail.com <mailto:jbbrown1980 at gmail.com>>
> wrote:
>
> I pulled out my copy of TBON and he also listed a
> 9 lb. cap up to B382001521 and 13 lb. after that
>
> I sent an email to Rick at SS to see if his part
> number RC5 is the cap you described. It doesn't
> say it's for the Tiger, it just says it's for the
> series V.
>
> On Tue, Jul 27, 2021, 8:27 PM Ron Fraser
> <rfraser at bluefrog.com
> <mailto:rfraser at bluefrog.com>> wrote:
>
> Parts List 6601334 lists 3 header tanks.
>
> 1224725 Header Tank up to B382001521
>
> 5221224 Header Tank from B382001522 to B382001894
>
> 1236126 Header Tank from B382001895
>
> Graham Vickery sent me a drawing for Header
> Tank 1224725 and it indicates Filler Cap 9 lbs.
>
> I don’t know if the drawings for the other 2
> header tanks are available to see which Filler
> Cap they indicate.
>
> Ron Fraser
>
> *From:*Joe Brown <jbbrown1980 at gmail.com
> <mailto:jbbrown1980 at gmail.com>>
> *Sent:* Tuesday, July 27, 2021 7:49 PM
> *To:* Ron Fraser <rfraser at bluefrog.com
> <mailto:rfraser at bluefrog.com>>
> *Cc:* Tigers Den <Tigers at autox.team.net
> <mailto:Tigers at autox.team.net>>
> *Subject:* Re: [Tigers] Radiator Cap
>
> Thanks Ron, the .805" dimension sounds like
> what I need.
>
> On Tue, Jul 27, 2021, 6:37 PM Ron Fraser
> <rfraser at bluefrog.com
> <mailto:rfraser at bluefrog.com>> wrote:
>
> Joe
>
> I believe I bought my radiator cap from
> Sunbeam Specialties.
>
> Cap indicates 9 lbs. and G630.
>
> Rubber seal to rubber seal is .805”.
>
> I installed a catch bottle for the header
> tank overflow. Catches any overflow which
> gets sucked back in when the engine cools.
>
> The Parts lists indicates 9 lbs. later
> cars and 13 lbs. early cars.
>
> Tiger, An Exceptional Motorcar indicates
> B382001521 as last unit with early header
> tank and 9 lb. cap – B382001522 1^st Tiger
> with updated header tank and 13 lb. cap.
>
> Well, no really good help there.
>
> I’m thinking 9 lbs. for early cars and 13
> lbs. for later cars is correct
>
> Ron Fraser
>
> *From:*Tigers
> <tigers-bounces at autox.team.net
> <mailto:tigers-bounces at autox.team.net>>
> *On Behalf Of *Joe Brown
> *Sent:* Tuesday, July 27, 2021 6:07 PM
> *To:* Tigers Den <Tigers at autox.team.net
> <mailto:Tigers at autox.team.net>>
> *Subject:* [Tigers] Radiator Cap
>
> Hi,
>
> I'm hoping one of you guys can tell me
> what radiator cap I should be using. I've
> tried a cap that was listed as being for a
> Tiger on Autozone's website but I think
> the pressure spring part under the cap is
> too short. I almost immediately start
> getting water out of the overflow tube as
> the engine warms up. I measured the depth
> of the expansion tank opening from the top
> edge to the flange where the spring part
> of the cap would sit and got .777". I
> measured the cap from the big rubber seal
> just under the cap to the small rubber
> seal at the end of the spring and got
> something like .75". So it looks like I
> need a cap with a longer spring stem.
>
> A brand name and part number would be
> great And also, what should the pressure
> rating be? What I have is 13 lbs.
>
> Thanks,
>
> Joe Brown
>
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>
> --
> Regards
>
> Michael King
>
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--
Ken Tisdale 303-807-5488
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